INFO: task jbd2/sda1-8:4497 blocked for more than 143 seconds. Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:26304 pid:4497 tgid:4497 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 io_schedule+0xbf/0x130 kernel/sched/core.c:9043 bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x64/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:415 [inline] journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline] jbd2_journal_commit_transaction+0x4827/0x65d0 fs/jbd2/commit.c:887 kjournald2+0x1f8/0x8f0 fs/jbd2/journal.c:201 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 6 locks held by kworker/0:0/8: #0: ffff888019a9d148 ( (wq_completion)usb_hub_wq ){+.+.}-{0:0} , at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc900000d7d80 ( (work_completion)(&hub->events) ){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffff88802455a190 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: hub_event+0x1c1/0x4e20 drivers/usb/core/hub.c:5849 #3: ffff88807f24a190 (&dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003 #4: ffff88807f04a160 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003 #5: ffffffff8efd2048 ( input_mutex ){+.+.}-{3:3} , at: input_register_device+0xa2b/0x1140 drivers/input/input.c:2463 5 locks held by kworker/u8:0/11: 7 locks held by kworker/1:0/25: 1 lock held by khungtaskd/30: #0: ffffffff8dbb18e0 (rcu_read_lock){....}-{1:2} , at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] , at: rcu_read_lock include/linux/rcupdate.h:781 [inline] , at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 3 locks held by kworker/1:2/1676: 1 lock held by udevd/4534: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 2 locks held by getty/4840: #0: ffff88802fa3a0a0 ( &tty->ldisc_sem ){++++}-{0:0} , at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900031232f0 ( &ldata->atomic_read_lock ){+.+.}-{3:3} , at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201 4 locks held by kworker/1:3/5069: 1 lock held by udevd/5111: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 4 locks held by udevd/5114: #0: ffff888017285418 ( &p->lock ){+.+.}-{3:3} , at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182 #1: ffff88802cd66088 ( &of->mutex #2 ){+.+.}-{3:3} , at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154 #2: ffff88802e7a5f08 ( kn->active #25 ){.+.+}-{0:0} , at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155 #3: ffff88802e05e190 ( &dev->mutex ){....}-{3:3} , at: device_lock_interruptible include/linux/device.h:1014 [inline] , at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142 4 locks held by udevd/5123: #0: ffff888022e4fb08 ( &p->lock){+.+.}-{3:3} , at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182 #1: ffff88802c2f4c88 ( &of->mutex #2 ){+.+.}-{3:3} , at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154 #2: ffff88802f250c38 ( kn->active #25 ){.+.+}-{0:0} , at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155 #3: ffff88807f24a190 ( &dev->mutex ){....}-{3:3} , at: device_lock_interruptible include/linux/device.h:1014 [inline] , at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142 1 lock held by udevd/5124: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 7 locks held by kworker/1:4/5137: 7 locks held by kworker/1:5/5163: 1 lock held by udevd/5233: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 1 lock held by udevd/5234: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 1 lock held by udevd/5235: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_dop_revalidate+0xf0/0x5a0 fs/kernfs/dir.c:1159 1 lock held by syz-executor500/5256: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778 1 lock held by syz-executor500/5284: #0: ffff8880162d4148 ( &root->kernfs_rwsem ){++++}-{3:3} , at: kernfs_add_one+0xb1/0x520 fs/kernfs/dir.c:778 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xf86/0x1240 kernel/hung_task.c:379 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: yealink 1-1:36.0: urb_irq_callback - urb status -71 NMI backtrace for cpu 1 CPU: 1 PID: 5163 Comm: kworker/1:5 Not tainted 6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: events_power_efficient gc_worker RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:207 Code: c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 44 04 76 7e <65> 8b 05 45 04 76 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 RSP: 0018:ffffc90000a18138 EFLAGS: 00000046 RAX: 0000000080010001 RBX: ffffffff8b2d83a1 RCX: ffffffff8ad90e8e RDX: ffff888028ef3c00 RSI: ffffffff8ad90e93 RDI: 0000000000000001 RBP: 0000000000000025 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000025 R11: 00000000001b88e8 R12: ffffc90000a18240 R13: ffffffff8b2d83a1 R14: dffffc0000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000050 CR3: 0000000022da6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: format_decode+0x244/0xba0 lib/vsprintf.c:2573 vsnprintf+0x13d/0x1880 lib/vsprintf.c:2776 sprintf+0xcd/0x110 lib/vsprintf.c:3028 print_caller kernel/printk/printk.c:1338 [inline] info_print_prefix+0x147/0x350 kernel/printk/printk.c:1355 record_print_text+0x141/0x400 kernel/printk/printk.c:1402 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2855 console_emit_next_record kernel/printk/printk.c:2895 [inline] console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:2994 console_unlock+0xae/0x290 kernel/printk/printk.c:3063 vprintk_emit kernel/printk/printk.c:2345 [inline] vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2300 dev_vprintk_emit drivers/base/core.c:4951 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4962 __dev_printk+0xf5/0x270 drivers/base/core.c:4974 _dev_err+0xe5/0x120 drivers/base/core.c:5017 urb_irq_callback+0x454/0x700 drivers/input/misc/yealink.c:416 __usb_hcd_giveback_urb+0x364/0x5c0 drivers/usb/core/hcd.c:1648 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1732 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043 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:345 [inline] RIP: 0010:gc_worker+0x2e1/0x1770 net/netfilter/nf_conntrack_core.c:1488 Code: 00 00 48 c7 c7 48 08 e5 8f e8 7b e4 61 f8 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 f9 f9 83 f8 48 85 db 58 0f 85 3d 10 00 00 ba fe 83 f8 eb 07 e8 b3 fe 83 f8 f3 90 44 8b 35 fa 31 db 06 31 RSP: 0018:ffffc900032dfbc8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8909e201 RDX: ffff888028ef3c00 RSI: ffffffff8909e210 RDI: 0000000000000007 RBP: ffff88802b000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000021259 R13: dffffc0000000000 R14: 00000000000424b1 R15: 0000000000040000 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 3.806 msecs yealink 1-1:36.0: unexpected response 0 yealink 1-1:36.0: urb_ctl_callback - urb status -71