INFO: task kworker/1:4:29872 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4 state:D stack:19888 pid:29872 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
usb_kill_urb+0x1d5/0x310 drivers/usb/core/urb.c:720
usb_start_wait_urb+0x265/0x530 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x2a5/0x4b0 drivers/usb/core/message.c:153
usb_get_descriptor+0xb5/0x3c0 drivers/usb/core/message.c:793
usb_get_device_descriptor+0x8a/0xe0 drivers/usb/core/message.c:1071
hub_port_init+0x106f/0x2e60 drivers/usb/core/hub.c:4922
hub_port_connect+0xc30/0x2910 drivers/usb/core/hub.c:5282
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5497
port_event+0xb67/0x1220 drivers/usb/core/hub.c:5643
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5725
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1dd00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by in:imklog/6211:
#0: ffff888078dcaaf0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:994
2 locks held by agetty/6232:
#0: ffff88807c36e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900028f82e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2113
5 locks held by kworker/1:4/29872:
#0: ffff8881415d7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90003d6fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffff888148591220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff888148591220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5671
#3: ffff8881485945c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff8881485945c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0x4f4/0x2910 drivers/usb/core/hub.c:5249
#4: ffff88814844f768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect+0x51d/0x2910 drivers/usb/core/hub.c:5250
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6506 Comm: syz-fuzzer Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_release kernel/locking/lockdep.c:5344 [inline]
RIP: 0010:lock_release+0x2d9/0x810 kernel/locking/lockdep.c:5657
Code: 84 c0 0f 85 5d 04 00 00 48 8b 44 24 18 44 89 20 4c 89 e8 48 c1 e8 03 80 3c 18 00 44 8b 7c 24 54 74 08 4c 89 ef e8 d7 3e 6a 00 <4d> 8b 75 00 48 8b 5c 24 10 48 81 c3 50 0a 00 00 48 89 d8 48 c1 e8
RSP: 0018:ffffc90001a3f840 EFLAGS: 00000046
RAX: 1ffff11004105c31 RBX: dffffc0000000000 RCX: dffffc0000000000
RDX: 1ffff92000347f18 RSI: ffff8880b9b27888 RDI: ffff88802082e188
RBP: ffffc90001a3f978 R08: dffffc0000000000 R09: fffffbfff1bfd1b6
R10: fffffbfff1bfd1b6 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88802082e188 R14: ffff88802082e1a8 R15: 0000000000000001
FS: 000000c00002e090(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2545490000 CR3: 000000007b513000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_write_seqcount_end include/linux/seqlock.h:565 [inline]
psi_group_change+0x9b0/0x1000 kernel/sched/psi.c:744
psi_task_switch+0x4c1/0x780 kernel/sched/psi.c:880
psi_sched_switch kernel/sched/stats.h:189 [inline]
__schedule+0x1290/0x1460 kernel/sched/core.c:6248
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
freezable_schedule include/linux/freezer.h:172 [inline]
do_nanosleep+0x1ca/0x7a0 kernel/time/hrtimer.c:2044
hrtimer_nanosleep+0x24d/0x490 kernel/time/hrtimer.c:2097
__do_sys_nanosleep kernel/time/hrtimer.c:2131 [inline]
__se_sys_nanosleep kernel/time/hrtimer.c:2118 [inline]
__x64_sys_nanosleep+0x237/0x2a0 kernel/time/hrtimer.c:2118
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46db5d
Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0f 05 <48> 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc cc cc cc cc cc cc
RSP: 002b:000000c00003df18 EFLAGS: 00000202 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 0000000000004e20 RCX: 000000000046db5d
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000c00003df18
RBP: 000000c00003df28 R08: 00000000002eb224 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000043b6e0
R13: 0000000000000000 R14: 00000000008db9a0 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 84 c0 test %al,%al
2: 0f 85 5d 04 00 00 jne 0x465
8: 48 8b 44 24 18 mov 0x18(%rsp),%rax
d: 44 89 20 mov %r12d,(%rax)
10: 4c 89 e8 mov %r13,%rax
13: 48 c1 e8 03 shr $0x3,%rax
17: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
1b: 44 8b 7c 24 54 mov 0x54(%rsp),%r15d
20: 74 08 je 0x2a
22: 4c 89 ef mov %r13,%rdi
25: e8 d7 3e 6a 00 callq 0x6a3f01
* 2a: 4d 8b 75 00 mov 0x0(%r13),%r14 <-- trapping instruction
2e: 48 8b 5c 24 10 mov 0x10(%rsp),%rbx
33: 48 81 c3 50 0a 00 00 add $0xa50,%rbx
3a: 48 89 d8 mov %rbx,%rax
3d: 48 rex.W
3e: c1 .byte 0xc1
3f: e8 .byte 0xe8