INFO: task kworker/1:0:25 blocked for more than 143 seconds.
Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:18328 pid:25 tgid:25 ppid:2 flags:0x00004000
Workqueue: events request_firmware_work_func
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
device_lock include/linux/device.h:1014 [inline]
ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1161 [inline]
ath9k_hif_usb_firmware_cb+0x34a/0x4b0 drivers/net/wireless/ath/ath9k/hif_usb.c:1294
request_firmware_work_func+0x1a6/0x280 drivers/base/firmware_loader/main.c:1196
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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:
4 locks held by kworker/0:0/8:
2 locks held by kworker/u8:0/11:
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000107d00 ((quota_release_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000107d00 ((quota_release_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
2 locks held by kworker/u8:1/12:
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000117d00 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000117d00 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
3 locks held by kworker/1:0/25:
#0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc900001f7d00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900001f7d00 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff888145324190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#2: ffff888145324190 (&dev->mutex){....}-{4:4}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1161 [inline]
#2: ffff888145324190 (&dev->mutex){....}-{4:4}, at: ath9k_hif_usb_firmware_cb+0x34a/0x4b0 drivers/net/wireless/ath/ath9k/hif_usb.c:1294
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
2 locks held by kworker/u8:2/35:
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90000ab7d00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000ab7d00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
6 locks held by kworker/1:1/79:
#0: ffff888021ea8148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888021ea8148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc9000216fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000216fd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff8880287c4190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#2: ffff8880287c4190 (&dev->mutex){....}-{4:4}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
#3: ffff88806b04a190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88806b04a190 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0x103/0x950 drivers/usb/core/hub.c:2295
#4: ffff888053653160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff888053653160 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff888053653160 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffff88804526c188 (&hdw->big_lock_mutex){+.+.}-{4:4}, at: pvr2_hdw_disconnect+0x6e/0x520 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2710
2 locks held by pvrusb2-context/2334:
#0: ffff88804526c188 (&hdw->big_lock_mutex){+.+.}-{4:4}, at: pvr2_hdw_initialize+0xca/0x3d10 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2326
#1: ffffffff8e7e1f90 (umhelper_sem){++++}-{4:4}, at: usermodehelper_read_trylock+0x140/0x300 kernel/umh.c:214
2 locks held by getty/5587:
#0: ffff8880311420a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000331b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5831:
#0: ffff88802a3f40e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802a3f40e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88802a3f40e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/5833:
#0: ffff8880573a00e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880573a00e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880573a00e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
2 locks held by kworker/0:3/5835:
4 locks held by udevd/5842:
#0: ffff88805d3ab790 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182
#1: ffff888029a20488 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2: ffff8880566391e8 (kn->active#5){++++}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3: ffff88806b04a190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88806b04a190 (&dev->mutex){....}-{4:4}, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729
2 locks held by kworker/0:4/5851:
3 locks held by kworker/0:5/5899:
1 lock held by syz-executor/12354:
#0: ffff8880285d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880285d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880285d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz.7.3477/14551:
#0: ffff888012fca0e0 (&type->s_umount_key#27/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz.6.3504/14635:
#0: ffff8880287260e0 (&type->s_umount_key#31){++++}-{4:4}, at: do_remount fs/namespace.c:3044 [inline]
#0: ffff8880287260e0 (&type->s_umount_key#31){++++}-{4:4}, at: path_mount+0xbdb/0xfa0 fs/namespace.c:3826
1 lock held by syz-executor/14684:
#0: ffff88804b4020e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88804b4020e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88804b4020e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/14750:
#0: ffff88802236c0e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88802236c0e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88802236c0e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/14812:
#0: ffff88808bab00e0 (&type->s_umount_key#59){+.+.}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88808bab00e0 (&type->s_umount_key#59){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88808bab00e0 (&type->s_umount_key#59){+.+.}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
2 locks held by syz.9.3574/15055:
#0: ffff888025c9f4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x17e/0x700 block/bdev.c:1087
#1: ffff888143760998 (&nbd->config_lock){+.+.}-{4:4}, at: refcount_dec_and_mutex_lock+0x30/0x100 lib/refcount.c:118
1 lock held by syz.1.3637/15355:
#0: ffff888145324190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#0: ffff888145324190 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x156/0x770 drivers/usb/core/devio.c:1054
1 lock held by syz-executor/15357:
#0: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#0: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
1 lock held by syz-executor/15418:
#0: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#0: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
3 locks held by kworker/u9:0/15420:
#0: ffff888029b5c948 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff888029b5c948 ((wq_completion)hci6){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc90011c6fd00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90011c6fd00 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
#2: ffff88804d774d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5835 Comm: kworker/0:3 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: events_power_efficient neigh_periodic_work
RIP: 0010:usb_submit_urb+0x1f/0x1930 drivers/usb/core/urb.c:376
Code: 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 60 89 f3 49 89 fd e8 74 17 5e fa 4d 85 ed <74> 68 49 be 00 00 00 00 00 fc ff df 49 8d ad b0 00 00 00 48 89 e8
RSP: 0018:ffffc90000007790 EFLAGS: 00000086
RAX: ffffffff87415c7c RBX: 0000000000000820 RCX: ffff88807d2f3c00
RDX: 0000000000000100 RSI: 0000000000000820 RDI: ffff888145687b00
RBP: ffff88807ecb9488 R08: ffff88807d60d2fb R09: 1ffff1100fac1a5f
R10: dffffc0000000000 R11: ffffed100fac1a60 R12: ffff88807ecb93c0
R13: ffff888145687b00 R14: 1ffff11028ad0f75 R15: ffff88807c376640
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cbd1c54950 CR3: 000000000e736000 CR4: 0000000000350ef0
Call Trace:
ath9k_hif_usb_reg_in_cb+0x4ce/0x6e0 drivers/net/wireless/ath/ath9k/hif_usb.c:790
__usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650
dummy_timer+0x856/0x4620 drivers/usb/gadget/udc/dummy_hcd.c:1993
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x59d/0xd30 kernel/time/hrtimer.c:1803
hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0xf7/0x220 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+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x170/0x200 kernel/softirq.c:396
Code: 8c e8 14 d4 66 0a 65 66 8b 05 34 11 a2 7e 66 85 c0 75 5d bf 01 00 00 00 e8 5d bd 0b 00 e8 d8 67 45 00 fb 65 8b 05 f8 10 a2 7e <85> c0 75 05 e8 77 82 a8 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c
RSP: 0018:ffffc900032d7a80 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 1ffff9200065af54 RCX: ffffffff817b275a
RDX: dffffc0000000000 RSI: ffffffff8c0a9760 RDI: ffffffff8c5faee0
RBP: ffffc900032d7b28 R08: ffffffff942a494f R09: 1ffffffff2854929
R10: dffffc0000000000 R11: fffffbfff285492a R12: dffffc0000000000
R13: 1ffff9200065af58 R14: ffffc900032d7ac0 R15: 0000000000000201
neigh_periodic_work+0xbcb/0xde0 net/core/neighbour.c:968
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244