INFO: task kworker/1:1:9104 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:24816 pid: 9104 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+0x103f/0x2df0 drivers/usb/core/hub.c:4924
hub_port_connect+0xcf8/0x27d0 drivers/usb/core/hub.c:5280
hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5488
port_event+0xb67/0x1220 drivers/usb/core/hub.c:5634
hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5716
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:
2 locks held by kworker/u4:1/10:
#0: ffff8880b9b395d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:478
#1: ffffc90000cf7d20 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
1 lock held by khungtaskd/26:
#0: ffffffff8cb1dd40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by in:imklog/6199:
#0: ffff8880224c1770 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990
5 locks held by kworker/1:1/9104:
#0: ffff888012d9a138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90019107d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffff88801e812220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88801e812220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1b2/0xe40 drivers/usb/core/hub.c:5662
#3: ffff88801e8165c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3086 [inline]
#3: ffff88801e8165c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xce1/0x27d0 drivers/usb/core/hub.c:5279
#4: ffff88801e70e368 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ef/0x2df0 drivers/usb/core/hub.c:4703
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc1-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: 23459 Comm: kworker/1:4 Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5377 [inline]
RIP: 0010:lock_is_held_type+0xbf/0x190 kernel/locking/lockdep.c:5680
Code: 2e 0f 1f 84 00 00 00 00 00 66 90 48 83 fd 31 73 24 48 89 df 4c 89 fe e8 ff 01 00 00 85 c0 75 2a 48 ff c5 49 63 85 58 0a 00 00 <48> 83 c3 28 48 39 c5 7c d8 eb 11 48 c7 c7 40 ce 9e 8c 48 89 ee e8
RSP: 0000:ffffc90003667a00 EFLAGS: 00000002
RAX: 0000000000000005 RBX: ffff88803a48c4d8 RCX: ffff88803a48c458
RDX: 0000000000000000 RSI: ffff8880b9b3d280 RDI: ffff88803a48c4d8
RBP: 0000000000000004 R08: dffffc0000000000 R09: fffffbfff1ff33dd
R10: fffffbfff1ff33dd R11: 0000000000000000 R12: 0000000000000046
R13: ffff88803a48ba00 R14: 00000000ffffffff R15: ffff8880b9b3d280
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01bc01300 CR3: 000000000c88e000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
get_freelist mm/slub.c:2860 [inline]
___slab_alloc+0x1b7/0xc40 mm/slub.c:2955
__slab_alloc mm/slub.c:3109 [inline]
slab_alloc_node mm/slub.c:3200 [inline]
__kmalloc_node_track_caller+0x2df/0x400 mm/slub.c:4956
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0x127/0x5a0 net/core/skbuff.c:426
alloc_skb include/linux/skbuff.h:1126 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:745 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:802 [inline]
nsim_dev_trap_report_work+0x264/0xaf0 drivers/net/netdevsim/dev.c:843
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
----------------
Code disassembly (best guess):
0: 2e 0f 1f 84 00 00 00 nopl %cs:0x0(%rax,%rax,1)
7: 00 00
9: 66 90 xchg %ax,%ax
b: 48 83 fd 31 cmp $0x31,%rbp
f: 73 24 jae 0x35
11: 48 89 df mov %rbx,%rdi
14: 4c 89 fe mov %r15,%rsi
17: e8 ff 01 00 00 callq 0x21b
1c: 85 c0 test %eax,%eax
1e: 75 2a jne 0x4a
20: 48 ff c5 inc %rbp
23: 49 63 85 58 0a 00 00 movslq 0xa58(%r13),%rax
* 2a: 48 83 c3 28 add $0x28,%rbx <-- trapping instruction
2e: 48 39 c5 cmp %rax,%rbp
31: 7c d8 jl 0xb
33: eb 11 jmp 0x46
35: 48 c7 c7 40 ce 9e 8c mov $0xffffffff8c9ece40,%rdi
3c: 48 89 ee mov %rbp,%rsi
3f: e8 .byte 0xe8