rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P18892/1:b..l P27/1:b..l P19260/1:b..l P19280/1:b..l P5801/2:b..l P19155/1:b..l P19189/1:b..l rcu: (detected by 0, t=10502 jiffies, g=103173, q=1134 ncpus=2) task:syz-executor state:R running task stack:23584 pid:19189 tgid:19189 ppid:19187 task_flags:0x400140 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:filter_irq_stacks+0x0/0x90 kernel/stacktrace.c:393 Code: e8 25 5d 77 00 48 8b 34 24 e9 51 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 85 f6 74 61 53 31 c0 48 bb 00 00 00 00 00 fc ff df 48 RSP: 0018:ffffc900035375e8 EFLAGS: 00000286 RAX: 000000000000000e RBX: 1ffff920006a6eca RCX: 0000000000000001 RDX: 0000000000002800 RSI: 000000000000000e RDI: ffffc90003537670 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff20c4b82 R10: ffffffff90625c17 R11: 0000000000000002 R12: 0000000000002800 R13: ffffc90003537670 R14: dffffc0000000000 R15: ffffea000197e850 stack_depot_save_flags+0x28/0x9c0 lib/stackdepot.c:609 save_stack+0x16f/0x1f0 mm/page_owner.c:157 __reset_page_owner+0x8d/0x400 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660 __put_partials+0x14c/0x170 mm/slub.c:3153 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4294 [inline] __kmalloc_node_noprof+0x21f/0x510 mm/slub.c:4300 __kvmalloc_node_noprof+0xad/0x1a0 mm/util.c:662 alloc_fdtable+0x158/0x2b0 fs/file.c:204 dup_fd+0x83b/0xb90 fs/file.c:400 copy_files kernel/fork.c:1806 [inline] copy_process+0x25d3/0x8c50 kernel/fork.c:2391 kernel_clone+0xfd/0x960 kernel/fork.c:2815 __do_sys_clone+0xcf/0x120 kernel/fork.c:2958 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fae8b7839d3 RSP: 002b:00007ffe444ef4b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fae8b7839d3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055558cb527d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fae8b976260 R14: 0000000000000003 R15: 00007ffe444ef650 </TASK> task:syz-executor state:R running task stack:25232 pid:19155 tgid:19155 ppid:5801 task_flags:0x40050c flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6944 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1772 [inline] zap_pmd_range mm/memory.c:1834 [inline] zap_pud_range mm/memory.c:1863 [inline] zap_p4d_range mm/memory.c:1884 [inline] unmap_page_range+0xee3/0x4390 mm/memory.c:1905 unmap_single_vma+0x194/0x2b0 mm/memory.c:1951 unmap_vmas+0x22f/0x490 mm/memory.c:1995 exit_mmap+0x1c1/0xba0 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x24ed/0x26c0 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3ccb383393 RSP: 002b:00007ffe0b21ece8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 0000000000004ad5 RCX: 00007f3ccb383393 RDX: 0000000040000000 RSI: 00007ffe0b21ecfc RDI: 00000000ffffffff RBP: 00007ffe0b21ecfc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008 R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000 </TASK> task:syz-executor state:R running task stack:23424 pid:5801 tgid:5801 ppid:5799 task_flags:0x400100 flags:0x00000002 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6944 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] unlock_task_sighand include/linux/sched/signal.h:751 [inline] do_send_sig_info kernel/signal.c:1269 [inline] group_send_sig_info+0x2db/0x300 kernel/signal.c:1418 kill_pid_info_type+0x92/0x2a0 kernel/signal.c:1458 kill_pid_info kernel/signal.c:1472 [inline] kill_proc_info+0x6f/0x1b0 kernel/signal.c:1479 kill_something_info+0x2a2/0x310 kernel/signal.c:1576 __do_sys_kill kernel/signal.c:3957 [inline] __se_sys_kill kernel/signal.c:3951 [inline] __x64_sys_kill+0xdc/0x140 kernel/signal.c:3951 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f40f8729567 RSP: 002b:00007fff31be8288 EFLAGS: 00000202 ORIG_RAX: 000000000000003e RAX: ffffffffffffffda RBX: 000055556d041d00 RCX: 00007f40f8729567 RDX: 0000000000000003 RSI: 0000000000000009 RDI: 0000000000004ad3 RBP: 000055556d041d00 R08: 0000000000000007 R09: 000055556d043448 R10: 149f2d70c15b4478 R11: 0000000000000202 R12: 00007fff31be829c R13: 000055556d043420 R14: 00007fff31be8340 R15: 000055556d048bc8 </TASK> task:kworker/u8:0 state:R running task stack:26800 pid:19280 tgid:19280 ppid:2 task_flags:0x4208060 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:preempt_count_sub+0x63/0x160 kernel/sched/core.c:5896 Code: 03 19 85 c9 75 1b 65 8b 05 02 e2 7b 7e 89 c2 81 e2 ff ff ff 7f 39 d3 7f 17 81 fb fe 00 00 00 76 71 f7 db 65 01 1d e5 e1 7b 7e <5b> c3 cc cc cc cc 90 e8 d1 88 39 03 85 c0 74 51 48 c7 c0 30 8f 62 RSP: 0018:ffffc90003577550 EFLAGS: 00000297 RAX: 0000000080000001 RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffc90003577ab8 RDI: 0000000000000001 RBP: ffffc90003570000 R08: ffffc90003577604 R09: ffffffff9131ec8c R10: ffffc900035775d0 R11: 000000000003c18b R12: ffffc90003577620 R13: ffffc900035775d0 R14: ffffc90003577ae8 R15: ffffc90003577ae0 unwind_next_frame+0xe5d/0x20c0 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 save_stack+0x162/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x8d/0x400 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660 __put_partials+0x14c/0x170 mm/slub.c:3153 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4294 [inline] __kmalloc_node_track_caller_noprof+0x222/0x510 mm/slub.c:4313 kvasprintf+0xbd/0x160 lib/kasprintf.c:25 __kthread_create_on_node+0x189/0x400 kernel/kthread.c:520 kthread_create_on_node+0xc8/0x110 kernel/kthread.c:588 create_worker+0x413/0x800 kernel/workqueue.c:2802 maybe_create_worker kernel/workqueue.c:3063 [inline] manage_workers kernel/workqueue.c:3115 [inline] worker_thread+0x9c5/0xf00 kernel/workqueue.c:3375 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:syz.9.3326 state:R running task stack:26048 pid:19260 tgid:19260 ppid:19157 task_flags:0x40044c flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6944 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1772 [inline] zap_pmd_range mm/memory.c:1834 [inline] zap_pud_range mm/memory.c:1863 [inline] zap_p4d_range mm/memory.c:1884 [inline] unmap_page_range+0x201d/0x4390 mm/memory.c:1905 unmap_single_vma+0x194/0x2b0 mm/memory.c:1951 unmap_vmas+0x22f/0x490 mm/memory.c:1995 exit_mmap+0x1c1/0xba0 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x24ed/0x26c0 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3ccb38d169 RSP: 002b:00007ffe0b21e8f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00000000001876ec RCX: 00007f3ccb38d169 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f3ccb5a7ba0 R08: 0000000000000001 R09: 0000001c0b21ebef R10: 00007f3ccb200000 R11: 0000000000000246 R12: 00007f3ccb5a5fac R13: 00007f3ccb5a5fa0 R14: ffffffffffffffff R15: 00007ffe0b21ea10 </TASK> task:kdevtmpfs state:R running task stack:25664 pid:27 tgid:27 ppid:2 task_flags:0x208140 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__reset_page_owner+0x77/0x400 mm/page_owner.c:297 Code: 13 0c 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 08 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 09 03 00 00 8b 43 08 <bf> 00 28 00 00 41 bd 01 00 00 00 31 db 89 44 24 28 e8 23 dc ff ff RSP: 0018:ffffc90000a278b0 EFLAGS: 00000246 RAX: 0000000004260616 RBX: ffff88801c8e7408 RCX: ffffffff82288414 RDX: 1ffff1100391ce82 RSI: ffffffff82268198 RDI: ffff88801c8e7410 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802ae40500 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4294 [inline] __kmalloc_node_track_caller_noprof+0x222/0x510 mm/slub.c:4313 __kmemdup_nul mm/util.c:61 [inline] kstrdup+0x53/0x100 mm/util.c:81 delete_path drivers/base/devtmpfs.c:268 [inline] handle_remove+0x4fe/0x790 drivers/base/devtmpfs.c:352 handle drivers/base/devtmpfs.c:386 [inline] devtmpfs_work_loop+0x2fb/0x7d0 drivers/base/devtmpfs.c:399 devtmpfsd+0x4c/0x50 drivers/base/devtmpfs.c:441 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> task:kworker/0:6 state:R running task stack:26736 pid:18892 tgid:18892 ppid:2 task_flags:0x4208060 flags:0x00004000 Workqueue: events_power_efficient gc_worker Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:227 [inline] RIP: 0010:nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:333 [inline] RIP: 0010:gc_worker+0x2d6/0x16a0 net/netfilter/nf_conntrack_core.c:1534 Code: 00 00 48 c7 c7 48 0b 63 90 e8 26 45 1a f8 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 f4 7f 3d f8 48 85 db 58 0f 85 a7 0f 00 00 <e8> b5 84 3d f8 8b 1d 2f ae e6 06 89 dd 31 ff 83 e5 01 89 ee e8 41 RSP: 0018:ffffc90003f0fb58 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff897c6822 RDX: ffff88802b882440 RSI: ffffffff897c6831 RDI: 0000000000000007 RBP: 0000000000040000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: ffffffff9ac3578c R13: 0000000000005123 R14: dffffc0000000000 R15: 0000000000001770 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3400 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> rcu: rcu_preempt kthread starved for 10226 jiffies! g103173 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27552 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6857 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2024 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2226 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc5-syzkaller-00013-g99fa936e8e4f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:unwind_next_frame+0xb1a/0x20c0 arch/x86/kernel/unwind_orc.c:590 Code: 03 4c 8b 4c 24 20 80 3c 16 00 0f 85 85 12 00 00 48 8b 14 24 49 89 45 48 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 ac 12 00 00 4c 89 e2 4d 89 75 38 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc90000a18778 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff9174b930 RDX: 1ffff92000143104 RSI: 1ffff92000143106 RDI: ffffc900001a7e10 RBP: ffffc90000a18830 R08: ffffc90000a1881c R09: ffffffff9174b934 R10: ffffc90000a187e8 R11: 0000000000075e74 R12: ffffc90000a18838 R13: ffffc90000a187e8 R14: ffffc900001a7e18 R15: ffffc900001a7e10 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f40f66f6ad7 CR3: 000000003ce06000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4609 [inline] kfree+0x2c4/0x4d0 mm/slub.c:4757 dummy_timer+0x1785/0x3960 drivers/usb/gadget/udc/dummy_hcd.c:1988 __run_hrtimer kernel/time/hrtimer.c:1801 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1865 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1882 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline] RIP: 0010:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112 Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 08 78 ac 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 58 4d 87 00 fb f4 <fa> c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900001a7d58 EFLAGS: 00000246 RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b574469 RDX: 0000000000000001 RSI: ffff888144eb0800 RDI: ffff888144eb0864 RBP: ffff888144eb0864 R08: 0000000000000001 R09: ffffed10170e6f85 R10: ffff8880b8737c2b R11: 0000000000000000 R12: ffff8880207e0800 R13: ffffffff8ee2e320 R14: 0000000000000001 R15: 0000000000000000 acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:699 cpuidle_enter_state+0xaa/0x4f0 drivers/cpuidle/cpuidle.c:268 cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:389 cpuidle_idle_call kernel/sched/idle.c:230 [inline] do_idle+0x310/0x3f0 kernel/sched/idle.c:325 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423 start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:315 common_startup_64+0x13e/0x148 </TASK>