INFO: task kworker/0:1:7 blocked for more than 143 seconds.
Not tainted 5.16.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:24888 pid: 7 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:720
usb_kill_urb+0x7f/0xa0 drivers/usb/core/urb.c:715
usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153
usb_get_descriptor+0xdd/0x1d0 drivers/usb/core/message.c:793
usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:1071
hub_port_init+0x971/0x2e80 drivers/usb/core/hub.c:4922
hub_port_connect drivers/usb/core/hub.c:5282 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5643 [inline]
hub_event+0x21ea/0x4460 drivers/usb/core/hub.c:5725
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:7:8511 blocked for more than 145 seconds.
Not tainted 5.16.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7 state:D stack:25856 pid: 8511 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
usb_kill_urb.part.0+0x19a/0x220 drivers/usb/core/urb.c:720
usb_kill_urb+0x7f/0xa0 drivers/usb/core/urb.c:715
usb_start_wait_urb+0x24a/0x4c0 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153
usb_get_descriptor+0xdd/0x1d0 drivers/usb/core/message.c:793
usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:1071
hub_port_init+0x971/0x2e80 drivers/usb/core/hub.c:4922
hub_port_connect drivers/usb/core/hub.c:5282 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5643 [inline]
hub_event+0x21ea/0x4460 drivers/usb/core/hub.c:5725
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
5 locks held by kworker/0:1/7:
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90000cc7db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff88823bc42a20 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88823bc42a20 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4460 drivers/usb/core/hub.c:5671
#3: ffff888147b585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff888147b585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5249 [inline]
#3: ffff888147b585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#3: ffff888147b585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5643 [inline]
#3: ffff888147b585c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1e17/0x4460 drivers/usb/core/hub.c:5725
#4: ffff888147abc768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5250 [inline]
#4: ffff888147abc768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#4: ffff888147abc768 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5643 [inline]
#4: ffff888147abc768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1e40/0x4460 drivers/usb/core/hub.c:5725
1 lock held by khungtaskd/27:
#0: ffffffff8bb83d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by systemd-udevd/2969:
1 lock held by in:imklog/6224:
#0: ffff88807c61e0f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:994
5 locks held by kworker/0:7/8511:
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff8881421bd138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc9000ff3fdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff88801dff9220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88801dff9220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4460 drivers/usb/core/hub.c:5671
#3: ffff88801dffc5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff88801dffc5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5249 [inline]
#3: ffff88801dffc5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#3: ffff88801dffc5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5643 [inline]
#3: ffff88801dffc5c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x1e17/0x4460 drivers/usb/core/hub.c:5725
#4: ffff888147875468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5250 [inline]
#4: ffff888147875468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
#4: ffff888147875468 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5643 [inline]
#4: ffff888147875468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x1e40/0x4460 drivers/usb/core/hub.c:5725
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc4-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+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 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+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2965 Comm: systemd-journal Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:number+0x126/0xae0 lib/vsprintf.c:465
Code: 00 74 1e e8 dc 9a 77 fd 89 ee bf 0a 00 00 00 e8 b0 9e 77 fd 31 c0 40 80 fd 0a 0f 95 c0 89 44 24 14 e8 be 9a 77 fd 8b 44 24 78 <31> ff 0f b6 5c 24 04 89 44 24 10 c1 f8 08 89 44 24 24 0f bf 44 24
RSP: 0018:ffffc900027af9a0 EFLAGS: 00000293
RAX: 00000000ffffff08 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807ada1d00 RSI: ffffffff84001032 RDI: 0000000000000003
RBP: 000000000000000a R08: 000000000000002f R09: 0000000000000000
R10: ffffffff84001003 R11: 0000000000000000 R12: ffff88807a5980ff
R13: ffffffff89accf2c R14: ffff88807a59a0f8 R15: ffff88807a5980ff
FS: 00007f6e3c6a78c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e39bec000 CR3: 000000007f39e000 CR4: 0000000000350ee0
Call Trace:
vsnprintf+0xf09/0x14f0 lib/vsprintf.c:2871
vscnprintf lib/vsprintf.c:2908 [inline]
scnprintf+0xbb/0x140 lib/vsprintf.c:2962
info_print_ext_header.constprop.0+0x1eb/0x280 kernel/printk/printk.c:567
devkmsg_read+0x3c9/0x730 kernel/printk/printk.c:749
vfs_read+0x1b5/0x600 fs/read_write.c:479
ksys_read+0x12d/0x250 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6e3bc36210
Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24
RSP: 002b:00007ffd5a110898 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007ffd5a113310 RCX: 00007f6e3bc36210
RDX: 0000000000002000 RSI: 00007ffd5a111110 RDI: 0000000000000009
RBP: 0000000000000000 R08: 0000000000000008 R09: 000055fb7bb1f7b8
R10: 000055fb7bb1f780 R11: 0000000000000246 R12: 00007ffd5a111110
R13: 00007ffd5a113268 R14: 000055fb7a48b958 R15: 0005d29eeb015764
----------------
Code disassembly (best guess):
0: 00 74 1e e8 add %dh,-0x18(%rsi,%rbx,1)
4: dc 9a 77 fd 89 ee fcompl -0x11760289(%rdx)
a: bf 0a 00 00 00 mov $0xa,%edi
f: e8 b0 9e 77 fd callq 0xfd779ec4
14: 31 c0 xor %eax,%eax
16: 40 80 fd 0a cmp $0xa,%bpl
1a: 0f 95 c0 setne %al
1d: 89 44 24 14 mov %eax,0x14(%rsp)
21: e8 be 9a 77 fd callq 0xfd779ae4
26: 8b 44 24 78 mov 0x78(%rsp),%eax
* 2a: 31 ff xor %edi,%edi <-- trapping instruction
2c: 0f b6 5c 24 04 movzbl 0x4(%rsp),%ebx
31: 89 44 24 10 mov %eax,0x10(%rsp)
35: c1 f8 08 sar $0x8,%eax
38: 89 44 24 24 mov %eax,0x24(%rsp)
3c: 0f .byte 0xf
3d: bf .byte 0xbf
3e: 44 rex.R
3f: 24 .byte 0x24