INFO: task kworker/0:1:9 blocked for more than 143 seconds.
Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:23664 pid:9 tgid:9 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
usb_kill_urb+0x1c9/0x300 drivers/usb/core/urb.c:713
usb_start_wait_urb+0x1b0/0x520 drivers/usb/core/message.c:65
usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
usb_control_msg+0x2b1/0x4c0 drivers/usb/core/message.c:154
get_bMaxPacketSize0 drivers/usb/core/hub.c:4768 [inline]
hub_port_init+0xc21/0x2620 drivers/usb/core/hub.c:4964
hub_port_connect drivers/usb/core/hub.c:5412 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5623 [inline]
port_event drivers/usb/core/hub.c:5783 [inline]
hub_event+0x2908/0x50f0 drivers/usb/core/hub.c:5865
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x913/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
INFO: task syz-executor132:5066 blocked for more than 143 seconds.
Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor132 state:D stack:24920 pid:5066 tgid:5066 ppid:5063 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
device_lock include/linux/device.h:990 [inline]
usbdev_release+0x7a/0x7a0 drivers/usb/core/devio.c:1096
__fput+0x429/0x8a0 fs/file_table.c:376
__do_sys_close fs/open.c:1554 [inline]
__se_sys_close fs/open.c:1539 [inline]
__x64_sys_close+0x7e/0x110 fs/open.c:1539
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fd7902770e0
RSP: 002b:00007ffce6ced778 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd7902770e0
RDX: 0000000000000007 RSI: 00007ffce6ced2b0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 00007ffce6ceda28 R14: 0000000000000001 R15: 00007ffce6ced7c0
Showing all locks held in the system:
5 locks held by kworker/0:1/9:
#0: ffff88801b6fe538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#0: ffff88801b6fe538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc900000e7d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#1: ffffc900000e7d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#2: ffff88802454d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff88802454d190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x50f0 drivers/usb/core/hub.c:5811
#3: ffff888024671510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3169 [inline]
#3: ffff888024671510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5380 [inline]
#3: ffff888024671510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5623 [inline]
#3: ffff888024671510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5783 [inline]
#3: ffff888024671510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x255f/0x50f0 drivers/usb/core/hub.c:5865
#4: ffff8880224415b8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5381 [inline]
#4: ffff8880224415b8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5623 [inline]
#4: ffff8880224415b8 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5783 [inline]
#4: ffff8880224415b8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x259d/0x50f0 drivers/usb/core/hub.c:5865
1 lock held by khungtaskd/29:
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4816:
#0: ffff88802b4250a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor132/5066:
#0: ffff88802454d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#0: ffff88802454d190 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x7a/0x7a0 drivers/usb/core/devio.c:1096
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 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+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc3-syzkaller-00136-g1f719a2f3fa6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x27/0x70 kernel/kcov.c:207
Code: 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d 80 58 70 7e 65 8b 15 81 58 70 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 <83> b9 fc 15 00 00 00 74 2c 8b 91 d8 15 00 00 83 fa 02 75 21 48 8b
RSP: 0018:ffffc90000007cf8 EFLAGS: 00000006
RAX: ffffffff8134f20d RBX: ffffffff8dacb940 RCX: ffffffff8de94680
RDX: 0000000080000101 RSI: ffffffff8bfd9440 RDI: 0000000000000000
RBP: ffffc90000007df0 R08: ffffffff8134f241 R09: 1ffffffff1f085b5
R10: dffffc0000000000 R11: fffffbfff1f085b6 R12: ffffc90000007d80
R13: 1ffff92000000fac R14: dffffc0000000000 R15: 0000000000000100
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563ef03d6600 CR3: 000000002d92c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
sched_clock+0xd/0x70 arch/x86/kernel/tsc.c:280
sched_clock_cpu+0x76/0x490 kernel/sched/clock.c:394
irqtime_account_irq+0x74/0x1e0 kernel/sched/cputime.c:64
account_softirq_enter include/linux/vtime.h:141 [inline]
__do_softirq+0x182/0x942 kernel/softirq.c:531
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632
irq_exit_rcu+0x9/0x30 kernel/softirq.c:644
sysvec_call_function_single+0x94/0xb0 arch/x86/kernel/smp.c:262
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:656
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 58 ea a5 74 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d c6 5c a9 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffffff8de07ca8 EFLAGS: 00000246
RAX: ffffffff8de94680 RBX: ffff88801628e064 RCX: 0000000000042569
RDX: 0000000000000001 RSI: ffff88801628e000 RDI: ffff88801628e064
RBP: 0000000000038f78 R08: ffff8880b9436d8b R09: 1ffff11017286db1
R10: dffffc0000000000 R11: ffffffff8b5dd030 R12: ffff888015347800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8e885860
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x118/0x490 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
call_cpuidle kernel/sched/idle.c:134 [inline]
cpuidle_idle_call kernel/sched/idle.c:215 [inline]
do_idle+0x374/0x5d0 kernel/sched/idle.c:312
cpu_startup_entry+0x41/0x60 kernel/sched/idle.c:410
rest_init+0x2e0/0x300 init/main.c:730
arch_call_rest_init+0xe/0x10 init/main.c:827
start_kernel+0x474/0x500 init/main.c:1072
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:555
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:536
secondary_startup_64_no_verify+0x171/0x17b
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.979 msecs