INFO: task kworker/1:5:4932 blocked for more than 143 seconds.
Not tainted 6.11.0-rc7-syzkaller-00139-g2193ede180dd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D stack:20912 pid:4932 tgid:4932 ppid:2 flags:0x00004000
Workqueue: events_freezable usb_stor_scan_dwork
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
blk_mq_freeze_queue_wait+0x146/0x190 block/blk-mq.c:139
blk_freeze_queue block/blk-mq.c:166 [inline]
blk_mq_freeze_queue block/blk-mq.c:175 [inline]
blk_mq_update_tag_set_shared+0xba/0x160 block/blk-mq.c:4032
blk_mq_add_queue_tag_set block/blk-mq.c:4066 [inline]
blk_mq_init_allocated_queue+0xe1c/0x1280 block/blk-mq.c:4340
blk_mq_alloc_queue+0x1f8/0x2f0 block/blk-mq.c:4155
scsi_alloc_sdev+0x897/0xd90 drivers/scsi/scsi_scan.c:337
scsi_probe_and_add_lun+0x525/0x7b0 drivers/scsi/scsi_scan.c:1210
scsi_sequential_lun_scan drivers/scsi/scsi_scan.c:1393 [inline]
__scsi_scan_target+0x42c/0x4e0 drivers/scsi/scsi_scan.c:1764
scsi_scan_channel drivers/scsi/scsi_scan.c:1845 [inline]
scsi_scan_channel+0x149/0x1e0 drivers/scsi/scsi_scan.c:1821
scsi_scan_host_selected+0x2ae/0x370 drivers/scsi/scsi_scan.c:1874
do_scsi_scan_host+0x1ef/0x260 drivers/scsi/scsi_scan.c:2013
scsi_scan_host drivers/scsi/scsi_scan.c:2043 [inline]
scsi_scan_host+0x3a7/0x440 drivers/scsi/scsi_scan.c:2031
usb_stor_scan_dwork+0xad/0x280 drivers/usb/storage/usb.c:998
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
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: task kworker/1:6:5339 blocked for more than 144 seconds.
Not tainted 6.11.0-rc7-syzkaller-00139-g2193ede180dd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:21216 pid:5339 tgid:5339 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
__flush_work+0x776/0xc30 kernel/workqueue.c:4212
__cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4332
quiesce_and_remove_host drivers/usb/storage/usb.c:939 [inline]
usb_stor_disconnect+0xc5/0x270 drivers/usb/storage/usb.c:1178
usb_unbind_interface+0x1e8/0x970 drivers/usb/core/driver.c:461
device_remove drivers/base/dd.c:568 [inline]
device_remove+0x122/0x170 drivers/base/dd.c:560
__device_release_driver drivers/base/dd.c:1272 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1295
bus_remove_device+0x22f/0x420 drivers/base/bus.c:574
device_del+0x396/0x9f0 drivers/base/core.c:3871
usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418
usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
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:
3 locks held by kworker/0:0/8:
1 lock held by khungtaskd/30:
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6626
3 locks held by kworker/1:2/43:
2 locks held by kworker/u8:6/285:
#0: ffff88811313b948 ((wq_completion)scsi_tmf_1){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90001897d80 ((work_completion)(&(&cmd->abort_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
2 locks held by getty/2605:
#0: ffff8881092ad0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
4 locks held by kworker/1:5/4932:
#0: ffff888100081548 ((wq_completion)events_freezable){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900049afd80 ((work_completion)(&(&us->scan_dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff8881210480e0 (&shost->scan_mutex){+.+.}-{3:3}, at: scsi_scan_host_selected+0x160/0x370 drivers/scsi/scsi_scan.c:1866
#3: ffff8881210482d0 (&set->tag_list_lock){+.+.}-{3:3}, at: blk_mq_add_queue_tag_set block/blk-mq.c:4057 [inline]
#3: ffff8881210482d0 (&set->tag_list_lock){+.+.}-{3:3}, at: blk_mq_init_allocated_queue+0x7d9/0x1280 block/blk-mq.c:4340
5 locks held by kworker/1:6/5339:
#0: ffff888106687548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc9000f9e7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888109b4d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888109b4d190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff888117ef5190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff888117ef5190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
#4: ffff88811bf96160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff88811bf96160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
#4: ffff88811bf96160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
4 locks held by udevd/5368:
#0: ffff888115b789e0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
#1: ffff88811c50e088 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2: ffff88811dc813c8 (kn->active#18){++++}-{0:0}, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff888119dea190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:1014 [inline]
#3: ffff888119dea190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
4 locks held by kworker/u8:0/7530:
#0: ffff888100abf948 ((wq_completion)async){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc9001085fd80 ((work_completion)(&entry->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888113cc0378 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888113cc0378 (&dev->mutex){....}-{3:3}, at: __device_attach_async_helper+0x84/0x290 drivers/base/dd.c:972
#3: ffff888105f63438 (&q->limits_lock){+.+.}-{3:3}, at: queue_limits_start_update include/linux/blkdev.h:926 [inline]
#3: ffff888105f63438 (&q->limits_lock){+.+.}-{3:3}, at: sd_revalidate_disk.isra.0+0x27a/0xa420 drivers/scsi/sd.c:3728
5 locks held by kworker/0:3/9519:
1 lock held by usb-storage/14222:
#0: ffff888121048d28 (&us_interface_key[i]){+.+.}-{3:3}, at: usb_stor_control_thread+0xd6/0xac0 drivers/usb/storage/usb.c:394
3 locks held by kworker/u8:3/14660:
#0: ffff888100abb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900018d7d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffffffff88ec6cc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6c0 kernel/rcu/tree.c:4486
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller-00139-g2193ede180dd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
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+0xf0c/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:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 4919 Comm: kworker/1:3 Not tainted 6.11.0-rc7-syzkaller-00139-g2193ede180dd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline]
RIP: 0010:__orc_find+0xa1/0x130 arch/x86/kernel/unwind_orc.c:102
Code: 40 3f 00 48 89 e8 48 29 d8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 4c 8d 3c 83 4c 89 fa 48 c1 ea 03 42 0f b6 0c 32 <4c> 89 fa 83 e2 07 83 c2 03 38 ca 7c 04 84 c9 75 73 49 63 17 4c 89
RSP: 0018:ffffc9000493f640 EFLAGS: 00000a03
RAX: 0000000000000001 RBX: ffffffff8a62dcf0 RCX: 0000000000000000
RDX: 1ffffffff14c5b9e RSI: ffffffff811552fa RDI: 0000000000000006
RBP: ffffffff8a62dcfc R08: 0000000000000006 R09: ffffffff81a23cb7
R10: ffffffff81a23c94 R11: 0000000000000000 R12: ffffffff81a23cb7
R13: ffffffff81a23c94 R14: dffffc0000000000 R15: ffffffff8a62dcf4
FS: 0000000000000000(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a905c1e300 CR3: 0000000115620000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0x100/0x170 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:1101 [inline]
free_unref_page+0x698/0xce0 mm/page_alloc.c:2619
kasan_depopulate_vmalloc_pte+0x63/0x80 mm/kasan/shadow.c:408
apply_to_pte_range mm/memory.c:2797 [inline]
apply_to_pmd_range mm/memory.c:2841 [inline]
apply_to_pud_range mm/memory.c:2877 [inline]
apply_to_p4d_range mm/memory.c:2913 [inline]
__apply_to_page_range+0x795/0xdd0 mm/memory.c:2947
kasan_release_vmalloc+0xac/0xc0 mm/kasan/shadow.c:525
purge_vmap_node+0x3ec/0x920 mm/vmalloc.c:2209
__purge_vmap_area_lazy+0x9ca/0xc10 mm/vmalloc.c:2293
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2327
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
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