INFO: task kworker/0:3:4934 blocked for more than 143 seconds.
Not tainted 6.11.0-rc7-syzkaller-00152-g68d4209158f4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:21936 pid:4934 tgid:4934 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/0:6:5229 blocked for more than 143 seconds.
Not tainted 6.11.0-rc7-syzkaller-00152-g68d4209158f4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6 state:D stack:21936 pid:5229 tgid:5229 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:
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
2 locks held by kworker/u8:2/35:
#0: ffff888105f78948 ((wq_completion)scsi_tmf_1){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90000257d80 ((work_completion)(&(&cmd->abort_work)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
4 locks held by kworker/u8:8/1072:
#0: ffff888100abf948 ((wq_completion)async){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90001e3fd80 ((work_completion)(&entry->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888120766378 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888120766378 (&dev->mutex){....}-{3:3}, at: __device_attach_async_helper+0x84/0x290 drivers/base/dd.c:972
#3: ffff8881063521e8 (&q->limits_lock){+.+.}-{3:3}, at: queue_limits_start_update include/linux/blkdev.h:926 [inline]
#3: ffff8881063521e8 (&q->limits_lock){+.+.}-{3:3}, at: sd_revalidate_disk.isra.0+0x27a/0xa420 drivers/scsi/sd.c:3728
1 lock held by udevd/2549:
2 locks held by getty/2607:
#0: ffff88810f3af0a0 (&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 udevd/4910:
#0: ffff88811d788668 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
#1: ffff88811b535c88 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2:
ffff88810d739008 (kn->active#18){++++}-{0:0}, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff88811184c190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:1014 [inline]
#3: ffff88811184c190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
4 locks held by kworker/0:3/4934:
#0: ffff888100081548 ((wq_completion)events_freezable){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900045dfd80 ((work_completion)(&(&us->scan_dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff88812173c0e0 (&shost->scan_mutex){+.+.}-{3:3}, at: scsi_scan_host_selected+0x160/0x370 drivers/scsi/scsi_scan.c:1866
#3: ffff88812173c2d0 (&set->tag_list_lock){+.+.}-{3:3}, at: blk_mq_add_queue_tag_set block/blk-mq.c:4057 [inline]
#3: ffff88812173c2d0 (&set->tag_list_lock){+.+.}-{3:3}, at: blk_mq_init_allocated_queue+0x7d9/0x1280 block/blk-mq.c:4340
5 locks held by kworker/0:4/4946:
#0: ffff888105eb6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc9000461fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888109b4c190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888109b4c190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff88811a52d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff88811a52d190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#4: ffff888115ea0160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff888115ea0160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
5 locks held by kworker/0:6/5229:
#0: ffff888105eb6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1:
ffffc9000f507d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2:
ffff8881097e5190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
ffff8881097e5190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff8881179c0190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff8881179c0190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
#4: ffff888115fdf160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff888115fdf160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
#4: ffff888115fdf160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
7 locks held by kworker/1:6/5768:
#0: ffff888105eb6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90010dcfd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888109765190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888109765190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff8881097b2190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff8881097b2190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
#4: ffff888119009160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff888119009160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
#4: ffff888119009160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
#5: ffffffff89bab988 (input_mutex){+.+.}-{3:3}, at: __input_unregister_device+0x136/0x450 drivers/input/input.c:2275
#6: ffffffff88ec6df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:296
4 locks held by udevd/8233:
#0: ffff88812f0cc8b8 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
#1: ffff88811ef88088 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2: ffff8881300363c8 (kn->active#19){++++}-{0:0}, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff88811a52d190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:1014 [inline]
#3: ffff88811a52d190 (&dev->mutex){....}-{3:3}, at: product_show+0x26/0xa0 drivers/usb/core/sysfs.c:141
6 locks held by kworker/1:5/8969:
1 lock held by usb-storage/9002:
#0: ffff88812173cd28 (&us_interface_key[i]){+.+.}-{3:3}, at: usb_stor_control_thread+0xd6/0xac0 drivers/usb/storage/usb.c:394
1 lock held by syz.2.1266/10083:
#0: ffffffff88ec6df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:328
3 locks held by dhcpcd-run-hook/10102:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc7-syzkaller-00152-g68d4209158f4 #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: 10105 Comm: sed Not tainted 6.11.0-rc7-syzkaller-00152-g68d4209158f4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:rcu_rdp_cpu_online kernel/rcu/tree.c:4665 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0x91/0x150 kernel/rcu/tree.c:4706
Code: 00 00 00 48 03 1c ed 60 aa 8f 88 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8b 00 00 00 <48> 8d 7b 18 48 8b 6b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48
RSP: 0000:ffffc9001058f9d8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff8881f593e4c0 RCX: ffffffff81af2bf4
RDX: 1ffff1103eb27c9c RSI: ffffffff874699c0 RDI: ffff8881f593e4e0
RBP: 0000000000000001 R08: 0000000000000007 R09: 000000000007ffff
R10: 000000000000003e R11: 0000000000000000 R12: ffff888104100000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
FS: 00007f1800109380(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f18001c89d3 CR3: 000000012f7a8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:113 [inline]
rcu_read_lock_held+0x27/0x50 kernel/rcu/update.c:349
lookup_page_ext mm/page_ext.c:254 [inline]
page_ext_get+0x132/0x310 mm/page_ext.c:526
page_table_check_set mm/page_table_check.c:114 [inline]
page_table_check_set+0x285/0x9d0 mm/page_table_check.c:102
__page_table_check_ptes_set+0x44c/0x710 mm/page_table_check.c:225
page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
set_ptes include/linux/pgtable.h:267 [inline]
set_pte_range+0x3cd/0x510 mm/memory.c:4806
filemap_map_order0_folio mm/filemap.c:3594 [inline]
filemap_map_pages+0x494/0x1150 mm/filemap.c:3644
do_fault_around mm/memory.c:5019 [inline]
do_read_fault mm/memory.c:5052 [inline]
do_fault mm/memory.c:5191 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault mm/memory.c:5521 [inline]
__handle_mm_fault+0x19d4/0x24f0 mm/memory.c:5664
handle_mm_fault+0x498/0xa60 mm/memory.c:5832
do_user_addr_fault+0x613/0x12c0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f18001c89d3
Code: Unable to access opcode bytes at 0x7f18001c89a9.
RSP: 002b:00007fff28c9e168 EFLAGS: 00010202
RAX: 0000015d00000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 00007f180029dd22 RSI: 00007f18004346ed RDI: 0000000000000001
RBP: 00007fff28c9e430 R08: 000000000000ffff R09: 000000000000000d
R10: 00007f1800197b74 R11: 0000000000000206 R12: 0000000000000000
R13: 0000015dbf0a49cb R14: 0000000000000000 R15: 00007f18004422a0