INFO: task kworker/1:19:4366 blocked for more than 144 seconds. Not tainted 5.15.175-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:19 state:D stack:22360 pid: 4366 ppid: 2 flags:0x00004000 Workqueue: gfs_recovery gfs2_recover_func Call Trace: context_switch kernel/sched/core.c:5027 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373 schedule+0x11b/0x1f0 kernel/sched/core.c:6456 io_schedule+0x88/0x100 kernel/sched/core.c:8481 wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356 wait_on_page_locked include/linux/pagemap.h:688 [inline] gfs2_jhead_process_page+0x25e/0xbf0 fs/gfs2/lops.c:476 gfs2_find_jhead+0xa5c/0x10c0 fs/gfs2/lops.c:586 gfs2_recover_func+0x6ce/0x1f00 fs/gfs2/recovery.c:462 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 INFO: task syz.2.459:6737 blocked for more than 144 seconds. Not tainted 5.15.175-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.459 state:D stack:23712 pid: 6737 ppid: 4166 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5027 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373 schedule+0x11b/0x1f0 kernel/sched/core.c:6456 bit_wait+0xe/0xc0 kernel/sched/wait_bit.c:199 __wait_on_bit+0xb9/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1d0/0x250 kernel/sched/wait_bit.c:64 wait_on_bit include/linux/wait_bit.h:76 [inline] gfs2_recover_journal+0x110/0x160 fs/gfs2/recovery.c:579 init_journal+0x1804/0x23c0 fs/gfs2/ops_fstype.c:837 init_inodes+0xdc/0x310 fs/gfs2/ops_fstype.c:891 gfs2_fill_super+0x1c2c/0x2750 fs/gfs2/ops_fstype.c:1249 get_tree_bdev+0x3fe/0x620 fs/super.c:1325 gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1332 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x2ba/0xb40 fs/namespace.c:3012 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fb8fbf684ca RSP: 002b:00007fb8f9dd6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fb8f9dd6ef0 RCX: 00007fb8fbf684ca RDX: 0000000020000040 RSI: 0000000020037f80 RDI: 00007fb8f9dd6eb0 RBP: 0000000020000040 R08: 00007fb8f9dd6ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020037f80 R13: 00007fb8f9dd6eb0 R14: 0000000000037f89 R15: 0000000020000000 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 3 locks held by kworker/u5:0/146: #0: ffff8880662ac138 ((wq_completion)hci7){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc9000176fd20 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffff88807a374ff0 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0xa4/0x1330 net/bluetooth/hci_core.c:1446 1 lock held by udevd/3544: 2 locks held by getty/3927: #0: ffff88814cd9a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc900025ae2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 2 locks held by kworker/1:19/4366: #0: ffff8881413a5d38 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc9000327fd20 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 2 locks held by udevd/5117: #0: ffff88802113b518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x14d/0xa50 block/bdev.c:817 #1: ffff888021263468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x68/0x100 drivers/block/loop.c:2055 2 locks held by kworker/u4:17/6560: 1 lock held by syz.2.459/6737: #0: ffff888061d4a0e0 (&type->s_umount_key#76/1){+.+.}-{3:3}, at: alloc_super+0x210/0x940 fs/super.c:229 1 lock held by syz-executor/7882: #0: ffff888021263468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa9/0xbe0 drivers/block/loop.c:1365 1 lock held by syz.5.775/8782: #0: ffff888061d4a0e0 (&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:716 1 lock held by syz-executor/9313: #0: ffff888021260468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa9/0xbe0 drivers/block/loop.c:1365 2 locks held by syz.7.958/10398: #0: ffff88807c34e098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:300 [inline] #0: ffff88807c34e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:346 [inline] #0: ffff88807c34e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:377 [inline] #0: ffff88807c34e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_release+0x58/0x200 drivers/tty/tty_ldisc.c:802 #1: ffff88807ec43098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: __tty_ldisc_lock_nested drivers/tty/tty_ldisc.c:306 [inline] #1: ffff88807ec43098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:348 [inline] #1: ffff88807ec43098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:377 [inline] #1: ffff88807ec43098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_release+0x7c/0x200 drivers/tty/tty_ldisc.c:802 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xe72/0xeb0 kernel/hung_task.c:295 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5273 Comm: kworker/u4:12 Not tainted 5.15.175-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: phy14 ieee80211_iface_work RIP: 0010:ieee802_11_parse_elems_crc+0x2ff/0x1130 net/mac80211/util.c:1489 Code: 00 0f b6 02 04 f7 0f b6 d8 bf f8 00 00 00 89 de e8 96 78 a8 f7 80 fb f7 77 4c e8 2c 76 a8 f7 eb 05 e8 25 76 a8 f7 49 83 c5 02 <48> 8b 44 24 20 42 0f b6 04 20 84 c0 48 8b 7c 24 10 0f 85 04 08 00 RSP: 0018:ffffc9000338f6c0 EFLAGS: 00000286 RAX: ffffffff89d80ebb RBX: 00000000000000dd RCX: ffff888028771dc0 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000002 RBP: ffffc9000338f868 R08: ffffffff89d80e61 R09: ffffc9000338f390 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888060625095 R14: 0000000000000000 R15: 0000000000000007 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe5f0510ab8 CR3: 00000000588df000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2243 [inline] ieee80211_bss_info_update+0x86d/0xc80 net/mac80211/scan.c:212 ieee80211_rx_bss_info net/mac80211/ibss.c:1123 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1614 [inline] ieee80211_ibss_rx_queued_mgmt+0x175e/0x2af0 net/mac80211/ibss.c:1643 ieee80211_iface_process_skb net/mac80211/iface.c:1456 [inline] ieee80211_iface_work+0x78f/0xcc0 net/mac80211/iface.c:1510 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287