------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 1ffff00010f3b352 x16: 00000000f1f1f1f1 x15: 00000000f3f3f3f3 x14: 0000000000000000 x13: 0000000000000001 x12: ffff7000141daeb3 x11: 1ffff000141daeb2 x10: ffff7000141daeb2 x9 : dfff800000000000 x8 : ffff8000a0ed7597 x7 : 0000000000000001 x6 : ffff7000141daeb2 x5 : 1ffff00010ef901e x4 : 1fffe00002b393a1 x3 : dfff800000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24244 hardirqs last enabled at (24243): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (24243): [] __arm64_exit_to_kernel_mode+0x38/0x98 arch/arm64/kernel/entry-common.c:60 hardirqs last disabled at (24244): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24122): [] spin_unlock_bh include/linux/spinlock.h:407 [inline] softirqs last enabled at (24122): [] ptr_ring_consume_bh include/linux/ptr_ring.h:399 [inline] softirqs last enabled at (24122): [] wg_packet_handshake_receive_worker+0x188/0x320 drivers/net/wireguard/receive.c:212 softirqs last disabled at (24120): [] spin_lock_bh include/linux/spinlock.h:353 [inline] softirqs last disabled at (24120): [] ptr_ring_consume_bh include/linux/ptr_ring.h:397 [inline] softirqs last disabled at (24120): [] wg_packet_handshake_receive_worker+0x11c/0x320 drivers/net/wireguard/receive.c:212 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24376 hardirqs last enabled at (24375): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24375): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24375): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24376): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24288): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24288): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24247): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24442 hardirqs last enabled at (24441): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24441): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24441): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24442): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24388): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24388): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24379): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24506 hardirqs last enabled at (24505): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24505): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24505): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24506): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24454): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24454): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24445): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24594 hardirqs last enabled at (24593): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24593): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24593): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24594): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24454): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24454): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24445): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24662 hardirqs last enabled at (24661): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24661): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24661): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24662): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24608): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24608): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24597): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24728 hardirqs last enabled at (24727): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24727): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24727): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24728): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24674): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24674): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24665): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24794 hardirqs last enabled at (24793): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24793): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24793): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24794): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24740): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24740): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24731): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 1ffff00010f3b352 x16: 1fffe00002e57433 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24864 hardirqs last enabled at (24863): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (24863): [] __arm64_exit_to_kernel_mode+0x38/0x98 arch/arm64/kernel/entry-common.c:60 hardirqs last disabled at (24864): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24862): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24862): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24855): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 24930 hardirqs last enabled at (24929): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (24929): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (24929): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (24930): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24876): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24876): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24867): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25008 hardirqs last enabled at (25007): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25007): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25007): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25008): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (24954): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (24954): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (24933): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: ffff7fffe4815000 x16: ffff80008db90000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25078 hardirqs last enabled at (25077): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25077): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25077): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25078): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25024): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25024): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25011): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25142 hardirqs last enabled at (25141): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25141): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25141): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25142): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25088): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25088): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25081): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25204 hardirqs last enabled at (25203): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25203): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25203): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25204): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25150): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25150): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25145): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25264 hardirqs last enabled at (25263): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25263): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25263): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25264): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25212): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25212): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25207): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: ffff7fffe4815000 x16: ffff00006bf7cf10 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25330 hardirqs last enabled at (25329): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25329): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25329): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25330): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25276): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25276): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25267): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25416 hardirqs last enabled at (25415): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25415): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25415): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25416): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25408): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25408): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25395): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 1ffff00010f3b352 x16: 1fffe00002e57433 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25476 hardirqs last enabled at (25475): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25475): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25475): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25476): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25424): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25424): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25419): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25536 hardirqs last enabled at (25535): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25535): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25535): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25536): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25484): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25484): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25479): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25604 hardirqs last enabled at (25603): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25603): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25603): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25604): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25558): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25558): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25553): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: ffff7fffe4815000 x16: ffff80008db90000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25670 hardirqs last enabled at (25669): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25669): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25669): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25670): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25616): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25616): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25607): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25734 hardirqs last enabled at (25733): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25733): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25733): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25734): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25682): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25682): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25673): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25798 hardirqs last enabled at (25797): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25797): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25797): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25798): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25742): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25742): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25737): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: ffff000014db0400 x17: 1ffff00010f3b352 x16: 1fffe000029b6093 x15: 1ffff00010f3b351 x14: 0000000000000001 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25854 hardirqs last enabled at (25853): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25853): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25853): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25854): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25742): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25742): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25737): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 25948 hardirqs last enabled at (25947): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (25947): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (25947): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (25948): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25944): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25944): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25933): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329, CPU#0: kworker/0:2/4598 Modules linked in: CPU: 0 UID: 0 PID: 4598 Comm: kworker/0:2 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff8000a0ed78e0 x29: ffff8000a0ed7990 x28: ffff00001442f980 x27: ffff8000a0ed7920 x26: ffff000012ebb088 x25: ffff800085f507e0 x24: 0000000000000000 x23: 1ffff000141daf1e x22: ffff0000145ec008 x21: 0000000000000000 x20: ffff0000142b2000 x19: ffff0000145ec000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000877cb690 x14: 1ffff00010ef96d2 x13: ffff800089e86bf0 x12: ffff60000d7f1e22 x11: 1fffe0000d7f1e21 x10: ffff60000d7f1e21 x9 : dfff800000000000 x8 : ffff8000a0ed7410 x7 : ffff8000a0ed7590 x6 : ffff8000a0ed7530 x5 : ffff8000a0ed7470 x4 : 0000000000000004 x3 : 1fffe0000d7f0f5d x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000159c9d00 Call trace: drm_crtc_wait_one_vblank+0x2b8/0x464 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0xb4/0xe0 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:327 [inline] drm_fb_helper_damage_work+0x230/0x88c drivers/gpu/drm/drm_fb_helper.c:365 process_one_work+0x830/0x1c00 kernel/workqueue.c:3387 process_scheduled_works kernel/workqueue.c:3470 [inline] worker_thread+0x42c/0xc90 kernel/workqueue.c:3551 kthread+0x2ec/0x384 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854 irq event stamp: 26020 hardirqs last enabled at (26019): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1698 [inline] hardirqs last enabled at (26019): [] finish_lock_switch kernel/sched/core.c:5251 [inline] hardirqs last enabled at (26019): [] finish_task_switch.isra.0+0x1e4/0x9f0 kernel/sched/core.c:5369 hardirqs last disabled at (26020): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (25966): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (25966): [] handle_softirqs+0xa98/0x1048 kernel/softirq.c:673 softirqs last disabled at (25951): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0