INFO: task jbd2/sda1-8:4508 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-syzkaller-00007-gf06ce441457d #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:24824 pid:4508 tgid:4508 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 io_schedule+0x8d/0x110 kernel/sched/core.c:9043 bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb0/0x2f0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64 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+0x3d7f/0x6760 fs/jbd2/commit.c:887 kjournald2+0x463/0x850 fs/jbd2/journal.c:201 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/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: 3 locks held by kworker/0:0/8: 5 locks held by kworker/u8:1/12: 5 locks held by kworker/1:0/25: #0: ffff88801c6e6548 ( (wq_completion)usb_hub_wq ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc900001f7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc900001f7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888023bcf190 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849 #3: ffffffff8e20fa20 ( console_lock ){+.+.}-{0:0} , at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559 #4: ffff888023155b68 ( hcd->address0_mutex ){+.+.}-{3:3} , at: hub_port_connect drivers/usb/core/hub.c:5419 [inline] , at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] , at: port_event drivers/usb/core/hub.c:5821 [inline] , at: hub_event+0x25f4/0x5150 drivers/usb/core/hub.c:5903 1 lock held by khungtaskd/30: #0: ffffffff8e333f60 ( 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+0x55/0x2a0 kernel/locking/lockdep.c:6614 11 locks held by kworker/1:1/45: 5 locks held by kworker/1:2/57: 2 locks held by getty/4845: #0: ffff88802b3430a0 ( &tty->ldisc_sem ){++++}-{0:0} , at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f162f0 ( &ldata->atomic_read_lock ){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 12 locks held by kworker/1:3/5119: 6 locks held by kworker/1:4/5120: #0: ffff88801c6e6548 ( (wq_completion)usb_hub_wq ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3206 [inline] , at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc9000364fd00 ( (work_completion)(&hub->events) ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:3207 [inline] , at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff888023caf190 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849 #3: ffff88802349b190 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: __device_attach+0x8e/0x520 drivers/base/dd.c:1003 #4: ffff88802349c160 ( &dev->mutex ){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: __device_attach+0x8e/0x520 drivers/base/dd.c:1003 #5: ffffffff8f0a4508 ( input_mutex ){+.+.}-{3:3} , at: input_register_device+0xade/0x1090 drivers/input/input.c:2463 2 locks held by syz-executor231/5286: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc2-syzkaller-00007-gf06ce441457d #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+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 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+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/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 5-1:36.0: urb_ctl_callback - urb status -71 NMI backtrace for cpu 1 CPU: 1 PID: 5120 Comm: kworker/1:4 Not tainted 6.10.0-rc2-syzkaller-00007-gf06ce441457d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:number+0x266/0xf90 lib/vsprintf.c:489 Code: 00 10 00 00 4c 89 ee e8 58 5e 16 f6 48 b8 00 00 00 00 00 10 00 00 49 39 c5 75 16 e8 64 59 16 f6 48 8b 44 24 18 83 c0 fe eb 1a 55 59 16 f6 eb 18 e8 4e 59 16 f6 48 83 7c 24 40 01 48 8b 44 24 RSP: 0018:ffffc90000a17c80 EFLAGS: 00000046 RAX: ffffffff8b7fbc01 RBX: ffff0a0000000509 RCX: ffff888023028000 RDX: 0000000080010001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a17d90 R08: ffffffff8b7fbc08 R09: 0000000000000000 R10: ffffc90000a17d00 R11: fffff52000142fa3 R12: 00000000ffff0a00 R13: 00000000000001cb R14: 00000000000001cb R15: ffffc90000a180e1 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559105ea9b90 CR3: 000000000e132000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x1542/0x1da0 lib/vsprintf.c:2890 sprintf+0xda/0x120 lib/vsprintf.c:3028 print_time kernel/printk/printk.c:1327 [inline] info_print_prefix+0x16b/0x310 kernel/printk/printk.c:1353 record_print_text kernel/printk/printk.c:1402 [inline] printk_get_next_message+0x6da/0xbe0 kernel/printk/printk.c:2855 console_emit_next_record kernel/printk/printk.c:2895 [inline] console_flush_all+0x410/0xfd0 kernel/printk/printk.c:2994 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3063 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2345 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4951 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4962 _dev_err+0x122/0x170 drivers/base/core.c:5017 urb_ctl_callback+0x1d3/0x290 drivers/input/misc/yealink.c:454 __usb_hcd_giveback_urb+0x373/0x530 drivers/usb/core/hcd.c:1648 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_get_return_address+0x55/0xc0 arch/x86/kernel/unwind_orc.c:369 Code: 72 8b 2b 31 ff 89 ee e8 e9 3c 55 00 85 ed 74 4a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8 8b f8 ba 00 <48> 8b 3b e8 13 43 21 00 89 c5 31 ff 89 c6 e8 b8 3c 55 00 85 ed 74 RSP: 0018:ffffc9000364e9b8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc9000364ea28 RCX: ffff888023028000 RDX: ffff888023028000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8140ddd7 R09: ffffffff8140f8cf R10: 0000000000000003 R11: ffff888023028000 R12: ffff888023028000 R13: ffffffff8181cfd0 R14: dffffc0000000000 R15: 1ffff920006c9d45 arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4000 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4007 __kernfs_new_node+0xd8/0x870 fs/kernfs/dir.c:624 kernfs_new_node+0x137/0x240 fs/kernfs/dir.c:700 __kernfs_create_file+0x49/0x2e0 fs/kernfs/file.c:1034 sysfs_add_file_mode_ns+0x24a/0x310 fs/sysfs/file.c:307 sysfs_merge_group+0x1fd/0x450 fs/sysfs/group.c:373 dpm_sysfs_add+0xd3/0x280 drivers/base/power/sysfs.c:707 device_add+0x5bc/0xbf0 drivers/base/core.c:3681 usb_create_ep_devs+0x130/0x230 drivers/usb/core/endpoint.c:169 create_intf_ep_devs drivers/usb/core/message.c:1252 [inline] usb_set_configuration+0x1a9d/0x1fb0 drivers/usb/core/message.c:2216 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254 usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:294 really_probe+0x2b8/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x856/0xbf0 drivers/base/core.c:3721 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2d6a/0x5150 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/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: 3.719 msecs