INFO: task kworker/0:6:5163 blocked for more than 143 seconds.
Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6 state:D stack:21184 pid:5163 tgid:5163 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0x539/0x12a0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d8/0x200 kernel/locking/rwsem.c:1580
usb_register_dev+0x11c/0x550 drivers/usb/core/file.c:134
hiddev_connect+0x3d5/0x630 drivers/hid/usbhid/hiddev.c:903
hid_connect+0x25e/0x18a0 drivers/hid/hid-core.c:2214
hid_hw_start drivers/hid/hid-core.c:2324 [inline]
hid_hw_start+0xaa/0x140 drivers/hid/hid-core.c:2315
plantronics_probe+0x2f0/0x3f0 drivers/hid/hid-plantronics.c:191
__hid_device_probe drivers/hid/hid-core.c:2674 [inline]
hid_device_probe+0x2eb/0x490 drivers/hid/hid-core.c:2711
call_driver_probe drivers/base/dd.c:578 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:657
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x114b/0x1a70 drivers/base/core.c:3682
hid_add_device+0x37f/0xa70 drivers/hid/hid-core.c:2857
usbhid_probe+0xd3b/0x1410 drivers/hid/usbhid/hid-core.c:1431
usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399
call_driver_probe drivers/base/dd.c:578 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:657
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x114b/0x1a70 drivers/base/core.c:3682
usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210
usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
call_driver_probe drivers/base/dd.c:578 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:657
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x114b/0x1a70 drivers/base/core.c:3682
usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2e58/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz.4.1823:9669 blocked for more than 144 seconds.
Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.1823 state:D stack:28392 pid:9669 tgid:9663 ppid:2660 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
usblp_open+0x5c/0x450 drivers/usb/class/usblp.c:417
usb_open+0x213/0x2f0 drivers/usb/core/file.c:47
chrdev_open+0x26d/0x6f0 fs/char_dev.c:414
do_dentry_open+0x957/0x1490 fs/open.c:959
vfs_open+0x82/0x3f0 fs/open.c:1089
do_open fs/namei.c:3727 [inline]
path_openat+0x2141/0x2d20 fs/namei.c:3886
do_filp_open+0x1dc/0x430 fs/namei.c:3913
do_sys_openat2+0x17a/0x1e0 fs/open.c:1416
do_sys_open fs/open.c:1431 [inline]
__do_sys_openat fs/open.c:1447 [inline]
__se_sys_openat fs/open.c:1442 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1442
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce566eb890
RSP: 002b:00007fce55345b70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fce566eb890
RDX: 0000000000000002 RSI: 00007fce55345c10 RDI: 00000000ffffff9c
RBP: 00007fce55345c10 R08: 0000000000000000 R09: 00007fce55345987
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fce568a6058 R15: 00007fff21ea1c88
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6626
2 locks held by getty/2607:
#0: ffff8881141700a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
3 locks held by kworker/0:5/5106:
#0: ffff888100080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900026afd80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffffffff88ec6df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:328
7 locks held by kworker/0:6/5163:
#0: ffff888105ebed48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900048bfd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff88810977d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff88810977d190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff88811fc1d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff88811fc1d190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#4: ffff88811b58d160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff88811b58d160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#5: ffff888113fada20 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#5: ffff888113fada20 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#6: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x11c/0x550 drivers/usb/core/file.c:134
7 locks held by kworker/1:6/6545:
#0: ffff888105ebed48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc900119d7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888109337190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888109337190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff88810e7ad190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff88810e7ad190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#4: ffff88810e7af160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff88810e7af160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#5: ffff888132721a20 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#5: ffff888132721a20 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1004
#6: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x11c/0x550 drivers/usb/core/file.c:134
5 locks held by kworker/0:1/9352:
#0: ffff888105ebed48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90001cafd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff88810978d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff88810978d190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff888117ec2190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff888117ec2190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
#4: ffff8881062cc160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff8881062cc160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
#4: ffff8881062cc160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
1 lock held by syz.0.1818/9656:
#0: ffffffff89a691a8 (usblp_mutex){+.+.}-{3:3}, at: usblp_release+0x7f/0x310 drivers/usb/class/usblp.c:480
2 locks held by syz.4.1823/9669:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
#1: ffffffff89a691a8 (usblp_mutex){+.+.}-{3:3}, at: usblp_open+0x5c/0x450 drivers/usb/class/usblp.c:417
1 lock held by syz.4.1864/10657:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.0.1865/10660:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.0.1877/11629:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.4.1898/11636:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.4.1936/12622:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.0.1939/12629:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.4.1967/13544:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.0.1951/13605:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.0.1984/14581:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
1 lock held by syz.4.2003/14585:
#0: ffffffff899affb0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 43 Comm: kworker/0:2 Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:__prepare_ICR arch/x86/kernel/apic/local.h:36 [inline]
RIP: 0010:__default_send_IPI_dest_field+0x2f/0x80 arch/x86/kernel/apic/ipi.c:185
Code: e7 18 83 fe 02 41 54 41 89 fc 55 53 89 d3 75 04 eb 2c f3 90 8b 04 25 00 c3 5f ff f6 c4 10 75 f2 44 89 e0 89 04 25 10 c3 5f ff <89> f0 09 d8 89 04 25 00 c3 5f ff 5b 5d 41 5c c3 cc cc cc cc bd e8
RSP: 0018:ffffc900004e7998 EFLAGS: 00000046
RAX: 0000000002000000 RBX: 0000000000000800 RCX: ffffffff815bd2c6
RDX: 0000000000000800 RSI: 00000000000000fb RDI: 0000000002000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff14a6b0b
R10: ffffffff8a53585f R11: 0000000000000000 R12: 0000000002000000
R13: 0000000000000000 R14: 0000000000000001 R15: ffff8881f583e780
FS: 0000000000000000(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc5173e2440 CR3: 0000000115a74000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
_flat_send_IPI_mask+0x44/0x70 arch/x86/kernel/apic/apic_flat_64.c:36
arch_send_call_function_single_ipi arch/x86/include/asm/smp.h:94 [inline]
send_call_function_single_ipi kernel/smp.c:118 [inline]
smp_call_function_many_cond+0x11a2/0x1420 kernel/smp.c:838
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
flush_tlb_kernel_range+0x82/0xb0 arch/x86/mm/tlb.c:1076
purge_vmap_node+0x3fc/0x920 mm/vmalloc.c:2208
__purge_vmap_area_lazy+0x9ca/0xc10 mm/vmalloc.c:2290
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2324
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244