INFO: task kworker/1:6:5682 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-syzkaller-00036-ga85ff0db48c3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:22848 pid:5682 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc79/0x30a0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
del_gendisk+0x276/0xab0 block/genhd.c:660
sd_remove+0x89/0xf0 drivers/scsi/sd.c:3735
device_remove drivers/base/dd.c:569 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:561
__device_release_driver drivers/base/dd.c:1270 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1293
bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
device_del+0x39a/0xa40 drivers/base/core.c:3814
__scsi_remove_device+0x30c/0x3f0 drivers/scsi/scsi_sysfs.c:1489
scsi_forget_host+0x138/0x190 drivers/scsi/scsi_scan.c:1987
scsi_remove_host+0x153/0x430 drivers/scsi/hosts.c:181
quiesce_and_remove_host drivers/usb/storage/usb.c:867 [inline]
usb_stor_disconnect+0x121/0x270 drivers/usb/storage/usb.c:1087
usb_unbind_interface+0x1dd/0x8d0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:569 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:561
__device_release_driver drivers/base/dd.c:1270 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1293
bus_remove_device+0x22c/0x420 drivers/base/bus.c:574
device_del+0x39a/0xa40 drivers/base/core.c:3814
usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1421
usb_disconnect+0x2e1/0x890 drivers/usb/core/hub.c:2276
hub_port_connect drivers/usb/core/hub.c:5284 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
port_event drivers/usb/core/hub.c:5749 [inline]
hub_event+0x2221/0x5330 drivers/usb/core/hub.c:5831
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
worker_thread+0x687/0x1110 kernel/workqueue.c:2748
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task udevd:17391 blocked for more than 143 seconds.
Not tainted 6.5.0-rc3-syzkaller-00036-ga85ff0db48c3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25344 pid:17391 ppid:2372 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc79/0x30a0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
blk_queue_enter+0x3aa/0x620 block/blk-core.c:326
blk_mq_alloc_request+0x416/0x860 block/blk-mq.c:592
scsi_alloc_request drivers/scsi/scsi_lib.c:1139 [inline]
scsi_execute_cmd+0x129/0x770 drivers/scsi/scsi_lib.c:217
ioctl_internal_command.constprop.0+0xe6/0x3e0 drivers/scsi/scsi_ioctl.c:79
scsi_set_medium_removal+0x12d/0x1f0 drivers/scsi/scsi_ioctl.c:139
sd_release+0x10b/0x130 drivers/scsi/sd.c:1423
blkdev_put_whole+0xa5/0xe0 block/bdev.c:680
blkdev_put+0x40f/0x8e0 block/bdev.c:915
blkdev_release+0x82/0xa0 block/fops.c:532
__fput+0x3fd/0xac0 fs/file_table.c:384
task_work_run+0x14d/0x240 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x1e4/0x1f0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcd3613a0a8
RSP: 002b:00007ffc54927198 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007fcd3600eae0 RCX: 00007fcd3613a0a8
RDX: 000055c03fb54b59 RSI: 00007ffc54926998 RDI: 0000000000000008
RBP: 000055c563e58e10 R08: 0000000000000006 R09: ec7a49c45e5728f5
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000002
R13: 000055c563e4b600 R14: 0000000000000008 R15: 000055c563e37910
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0:
ffffffff87ea7370 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/13:
#0: ffffffff87ea7070 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff87ea7f80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
2 locks held by getty/2430:
#0: ffff888114b50098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000452f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfcb/0x1480 drivers/tty/n_tty.c:2187
4 locks held by udevd/5263:
#0: ffff888116dbf790
(&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
#1: ffff888112c95888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4b/0x460 fs/kernfs/file.c:154
#2: ffff888110366830 (kn->active#30){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x460 fs/kernfs/file.c:155
#3: ffff888144ba6190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:963 [inline]
#3: ffff888144ba6190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
6 locks held by kworker/0:3/5270:
6 locks held by kworker/1:4/5300:
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc90001cefd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888106325190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888106325190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1cc/0x5330 drivers/usb/core/hub.c:5777
#3: ffff888106338500 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3185 [inline]
#3: ffff888106338500 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5341 [inline]
#3: ffff888106338500 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
#3: ffff888106338500 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5749 [inline]
#3: ffff888106338500 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2ad8/0x5330 drivers/usb/core/hub.c:5831
#4: ffff88810272af68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5342 [inline]
#4: ffff88810272af68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
#4: ffff88810272af68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5749 [inline]
#4: ffff88810272af68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2afe/0x5330 drivers/usb/core/hub.c:5831
#5: ffffffff888d0c90 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x1a4/0x2000 drivers/usb/core/hub.c:3000
6 locks held by kworker/1:5/5413:
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc90001d7fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888105f49190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888105f49190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1cc/0x5330 drivers/usb/core/hub.c:5777
#3: ffff888144ba6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#3: ffff888144ba6190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
#4: ffff888144c8e160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#4: ffff888144c8e160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1003
#5: ffffffff87eb3300 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6c0 kernel/rcu/tree.c:3997
8 locks held by kworker/1:6/5682:
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
#0: ffff88810c64d938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
#1: ffffc9000292fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
#2: ffff888105fc1190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#2: ffff888105fc1190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1cc/0x5330 drivers/usb/core/hub.c:5777
#3: ffff88810aa64190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#3: ffff88810aa64190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x890 drivers/usb/core/hub.c:2267
#4: ffff88810ca6a160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#4: ffff88810ca6a160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#4: ffff88810ca6a160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
#5: ffff88811dbb00e0 (&shost->scan_mutex){+.+.}-{3:3}, at: scsi_remove_host+0x2c/0x430 drivers/scsi/hosts.c:169
#6: ffff88811bf66370 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#6: ffff88811bf66370 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#6: ffff88811bf66370 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1290
#7: ffff88810ba47358 (&disk->open_mutex){+.+.}-{3:3}, at: del_gendisk+0x276/0xab0 block/genhd.c:660
1 lock held by udevd/17391:
#0: ffff88810ba47358 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xb0/0x8e0 block/bdev.c:901
5 locks held by kworker/0:1/19078:
5 locks held by kworker/0:8/21363:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc3-syzkaller-00036-ga85ff0db48c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x27b/0x2e0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf29/0x11b0 kernel/hung_task.c:379
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5300 Comm: kworker/1:4 Not tainted 6.5.0-rc3-syzkaller-00036-ga85ff0db48c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:416
Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 18 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 e8 55 49 16 ff eb a4 e8 ae 49 16 ff eb e1 66
RSP: 0018:ffffc90001cef0e0 EFLAGS: 00000006
RAX: 0000000000000000 RBX: 00000000000003f9 RCX: 0000000000000000
RDX: 00000000000003f9 RSI: ffffffff82809265 RDI: ffffffff8c1d9c20
RBP: ffffffff8c1d9be0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 205d303033355420 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8c1d9c30 R15: 0000000000000071
FS: 0000000000000000(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f545724f000 CR3: 0000000113f31000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
serial_out drivers/tty/serial/8250/8250.h:122 [inline]
serial8250_clear_IER+0xea/0x150 drivers/tty/serial/8250/8250_port.c:712
serial8250_console_write+0x1e9/0x1060 drivers/tty/serial/8250/8250_port.c:3409
console_emit_next_record kernel/printk/printk.c:2877 [inline]
console_flush_all+0x4c8/0xf50 kernel/printk/printk.c:2933
console_unlock+0xc6/0x1f0 kernel/printk/printk.c:3007
vprintk_emit+0x1c5/0x640 kernel/printk/printk.c:2307
dev_vprintk_emit drivers/base/core.c:4840 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4851
__dev_printk+0xf5/0x270 drivers/base/core.c:4863
_dev_notice+0xe5/0x120 drivers/base/core.c:4908
usb_parse_configuration drivers/usb/core/config.c:661 [inline]
usb_get_configuration+0xc37/0x5640 drivers/usb/core/config.c:944
usb_enumerate_device drivers/usb/core/hub.c:2445 [inline]
usb_new_device+0x1115/0x1960 drivers/usb/core/hub.c:2583
hub_port_connect drivers/usb/core/hub.c:5445 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5589 [inline]
port_event drivers/usb/core/hub.c:5749 [inline]
hub_event+0x30fd/0x5330 drivers/usb/core/hub.c:5831
process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
worker_thread+0x687/0x1110 kernel/workqueue.c:2748
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000