bisecting fixing commit since 6e764bcd1cf72a2846c0e53d3975a09b242c04c9
building syzkaller on b599f2fcc734e2183016a340d4f6fc2891d8e41f
testing commit 6e764bcd1cf72a2846c0e53d3975a09b242c04c9
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: e120b21d61e2baf9572aeb0255a59ee637f930a2dae9794cc0fe975c5f2dcbca
all runs: crashed: INFO: task hung in pn533_finalize_setup
testing current HEAD 06fb4ecfeac7e00d6704fa5ed19299f2fefb3cc9
testing commit 06fb4ecfeac7e00d6704fa5ed19299f2fefb3cc9
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 8d814536044cb51d8ae6a8f25fea0d6b0774b90746e8cd5673c02d4dabb6db83
all runs: crashed: INFO: task hung in pn533_finalize_setup
revisions tested: 2, total time: 24m22.49530928s (build: 12m13.252195141s, test: 11m18.248880044s)
the crash still happens on HEAD
commit msg: gpio: Request interrupts after IRQ is initialized
crash: INFO: task hung in pn533_finalize_setup
INFO: task kworker/1:2:144 blocked for more than 143 seconds.
Not tainted 5.18.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:26608 pid: 144 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5363 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x114d/0x39b0 drivers/usb/core/hub.c:5747
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task kworker/0:3:3644 blocked for more than 144 seconds.
Not tainted 5.18.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:26608 pid: 3644 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5363 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x114d/0x39b0 drivers/usb/core/hub.c:5747
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task kworker/0:5:3953 blocked for more than 144 seconds.
Not tainted 5.18.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5 state:D stack:26608 pid: 3953 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5363 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x114d/0x39b0 drivers/usb/core/hub.c:5747
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task kworker/0:6:3954 blocked for more than 145 seconds.
Not tainted 5.18.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6 state:D stack:25552 pid: 3954 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5363 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x114d/0x39b0 drivers/usb/core/hub.c:5747
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task kworker/1:6:3956 blocked for more than 146 seconds.
Not tainted 5.18.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:25424 pid: 3956 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5363 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x114d/0x39b0 drivers/usb/core/hub.c:5747
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task kworker/1:8:4061 blocked for more than 147 seconds.
Not tainted 5.18.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:8 state:D stack:26136 pid: 4061 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
pn533_send_cmd_sync drivers/nfc/pn533/pn533.c:631 [inline]
pn533_get_firmware_version drivers/nfc/pn533/pn533.c:2519 [inline]
pn533_finalize_setup+0xec/0x130 drivers/nfc/pn533/pn533.c:2716
pn533_usb_probe+0x846/0xf00 drivers/nfc/pn533/usb.c:544
usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:542 [inline]
really_probe+0x1c1/0x9d0 drivers/base/dd.c:621
__driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752
driver_probe_device+0x44/0x110 drivers/base/dd.c:782
__device_attach_driver+0x185/0x250 drivers/base/dd.c:899
bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
__device_attach+0x1db/0x410 drivers/base/dd.c:970
bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
device_add+0x9ca/0x1b10 drivers/base/core.c:3405
usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5363 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
port_event drivers/usb/core/hub.c:5665 [inline]
hub_event+0x114d/0x39b0 drivers/usb/core/hub.c:5747
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Showing all locks held in the system:
2 locks held by kworker/u4:1/11:
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline]
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1297 [inline]
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1595 [inline]
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x26a0 kernel/sched/core.c:6302
#1: ffff8880b9e27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:889
1 lock held by khungtaskd/28:
#0: ffffffff8af766a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
5 locks held by kworker/1:2/144:
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc9000237fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff8881489d8220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff8881489d8220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x39b0 drivers/usb/core/hub.c:5693
#3: ffff888070969220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888070969220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff8880631f61a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8880631f61a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
2 locks held by getty/3308:
#0: ffff888148499098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900027832e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9d7/0xed0 drivers/tty/n_tty.c:2075
5 locks held by kworker/0:3/3644:
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc90002c2fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff88801d800220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801d800220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x39b0 drivers/usb/core/hub.c:5693
#3: ffff888022383220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888022383220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff8880230671a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff8880230671a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
3 locks held by udevd/3704:
#0: ffff8880629b0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
#0: ffff8880629b0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x15f/0x650 fs/kernfs/file.c:237
#1: ffff88801a3790f0 (kn->active#48){.+.+}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:199 [inline]
#1: ffff88801a3790f0 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_read_iter+0x182/0x650 fs/kernfs/file.c:237
#2: ffff8880191f4220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff8880191f4220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x36/0x310 drivers/usb/core/sysfs.c:873
3 locks held by udevd/3706:
#0: ffff8880644be888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
#0: ffff8880644be888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x15f/0x650 fs/kernfs/file.c:237
#1: ffff888064af8008 (kn->active#48){.+.+}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:199 [inline]
#1: ffff888064af8008 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_read_iter+0x182/0x650 fs/kernfs/file.c:237
#2: ffff88807ece6220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff88807ece6220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x36/0x310 drivers/usb/core/sysfs.c:873
3 locks held by udevd/3707:
#0: ffff88806cafc088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
#0: ffff88806cafc088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x15f/0x650 fs/kernfs/file.c:237
#1: ffff888022984da0 (kn->active#48){.+.+}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:199 [inline]
#1: ffff888022984da0 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_read_iter+0x182/0x650 fs/kernfs/file.c:237
#2: ffff888021e41220 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:772 [inline]
#2: ffff888021e41220 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x36/0x310 drivers/usb/core/sysfs.c:873
5 locks held by kworker/0:5/3953:
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc9000285fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff8881487c0220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff8881487c0220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x39b0 drivers/usb/core/hub.c:5693
#3: ffff88801c359220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88801c359220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff888070af21a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff888070af21a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
5 locks held by kworker/0:6/3954:
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc9000286fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff8881489ac220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff8881489ac220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x39b0 drivers/usb/core/hub.c:5693
#3: ffff888021e41220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff888021e41220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff88806596f1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff88806596f1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
5 locks held by kworker/1:6/3956:
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc9000289fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff88801d6f8220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801d6f8220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x39b0 drivers/usb/core/hub.c:5693
#3:
ffff8880191f4220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
ffff8880191f4220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4:
ffff888073a2d1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
ffff888073a2d1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
5 locks held by kworker/1:8/4061:
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888015eb3538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc90002e2fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff88801d708220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#2: ffff88801d708220 (&dev->mutex){....}-{3:3}, at: hub_event+0x127/0x39b0 drivers/usb/core/hub.c:5693
#3: ffff88807ece6220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#3: ffff88807ece6220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
#4: ffff888015de51a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:767 [inline]
#4: ffff888015de51a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x74/0x410 drivers/base/dd.c:945
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-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+0x57/0x7d lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x30/0xc0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x140/0x170 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0x88c/0xbf0 kernel/hung_task.c:369
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 51 Comm: kworker/u4:2 Not tainted 5.18.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5641 [inline]
RIP: 0010:lock_acquire+0x19e/0x510 kernel/locking/lockdep.c:5606
Code: 89 e1 44 89 ea 65 ff 05 e8 39 ae 7e 48 81 64 24 08 00 02 00 00 44 89 fe 6a 00 4c 89 f7 6a 00 ff b4 24 f8 00 00 00 ff 74 24 18 <41> 0f 94 c1 45 0f b6 c9 e8 15 95 ff ff 48 c7 c7 e0 91 eb 88 48 83
RSP: 0018:ffffc9000130fb78 EFLAGS: 00000006
RAX: 0000000000000001 RBX: 1ffff92000261f75 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8af766a0
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8cc7b3d7
R10: fffffbfff198f67a R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8af766a0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000003198708 CR3: 0000000018896000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:694 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x108/0xd70 net/batman-adv/network-coding.c:719
process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess):
0: 89 e1 mov %esp,%ecx
2: 44 89 ea mov %r13d,%edx
5: 65 ff 05 e8 39 ae 7e incl %gs:0x7eae39e8(%rip) # 0x7eae39f4
c: 48 81 64 24 08 00 02 andq $0x200,0x8(%rsp)
13: 00 00
15: 44 89 fe mov %r15d,%esi
18: 6a 00 pushq $0x0
1a: 4c 89 f7 mov %r14,%rdi
1d: 6a 00 pushq $0x0
1f: ff b4 24 f8 00 00 00 pushq 0xf8(%rsp)
26: ff 74 24 18 pushq 0x18(%rsp)
* 2a: 41 0f 94 c1 sete %r9b <-- trapping instruction
2e: 45 0f b6 c9 movzbl %r9b,%r9d
32: e8 15 95 ff ff callq 0xffff954c
37: 48 c7 c7 e0 91 eb 88 mov $0xffffffff88eb91e0,%rdi
3e: 48 rex.W
3f: 83 .byte 0x83