INFO: task syz-executor.3:12884 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28400 pid:12884 ppid: 1 flags:0x00000000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6431
schedule+0xd2/0x1f0 kernel/sched/core.c:6503
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
flush_workqueue+0x3ed/0x13a0 kernel/workqueue.c:2861
hci_dev_open+0xdb/0x300 net/bluetooth/hci_core.c:526
hci_sock_ioctl+0x62c/0x910 net/bluetooth/hci_sock.c:1027
sock_do_ioctl+0xcc/0x230 net/socket.c:1169
sock_ioctl+0x2f1/0x640 net/socket.c:1286
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
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+0x46/0xb0
RIP: 0033:0x7f93f0488ec7
RSP: 002b:00007ffe0da46648 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe0da46d08 RCX: 00007f93f0488ec7
RDX: 0000000000000003 RSI: 00000000400448c9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007f93efbff700 R09: 00007f93efbff700
R10: 00007f93efbff9d0 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffe0da467a0 R14: 00007f93f059c9b8 R15: 000000000000000c
</TASK>
INFO: task kworker/u5:0:12929 blocked for more than 143 seconds.
Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:0 state:D stack:28712 pid:12929 ppid: 2 flags:0x00004000
Workqueue: hci3 hci_power_on
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6431
schedule+0xd2/0x1f0 kernel/sched/core.c:6503
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_work+0x56c/0xb10 kernel/workqueue.c:3075
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162
hci_dev_close_sync+0x8d/0x1150 net/bluetooth/hci_sync.c:4091
hci_dev_do_close+0x32/0x70 net/bluetooth/hci_core.c:553
hci_power_on+0x1c0/0x630 net/bluetooth/hci_core.c:981
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8bd86be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
3 locks held by klogd/2958:
2 locks held by getty/3279:
#0: ffff88814a8c1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
3 locks held by kworker/u5:5/3646:
#0: ffff88801bbd5138 ((wq_completion)hci0){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88801bbd5138 ((wq_completion)hci0){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88801bbd5138 ((wq_completion)hci0){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88801bbd5138 ((wq_completion)hci0){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88801bbd5138 ((wq_completion)hci0){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88801bbd5138 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90003d8fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88807b45d048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
3 locks held by kworker/u5:0/12929:
#0: ffff88801cd8e938 ((wq_completion)hci3){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88801cd8e938 ((wq_completion)hci3){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88801cd8e938 ((wq_completion)hci3){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88801cd8e938 ((wq_completion)hci3){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88801cd8e938 ((wq_completion)hci3){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88801cd8e938 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90002e1fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888042d1d048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__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+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc22/0xf90 kernel/hung_task.c:378
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
NMI backtrace for cpu 1
CPU: 1 PID: 6603 Comm: kworker/u4:28 Not tainted 5.18.0-syzkaller-12234-g50fd82b3a9a9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: 0x0 (events_unbound)
RIP: 0010:cpuacct_charge+0x1cf/0x3d0 kernel/sched/cpuacct.c:342
Code: 00 00 49 83 fd 07 0f 87 af 01 00 00 41 80 3f 00 0f 85 90 01 00 00 4a 03 1c ed e0 78 7f 8b 48 89 d8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 61 01 00 00 4c 01 33 48 8d bd 10 01 00 00 48 89 f8 48 c1 e8
RSP: 0018:ffffc9001593f840 EFLAGS: 00000046
RAX: 1ffff11017344f19 RBX: ffff8880b9a278c8 RCX: 0000000000000001
RDX: ffffffff8b7f78e0 RSI: 0000000000000002 RDI: ffffffff8bc78cd8
RBP: ffffffff8bc78bc0 R08: 0000000000000000 R09: ffffffff8dbbd457
R10: fffffbfff1b77a8a R11: dffffc0000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 00000000000afea6 R15: fffffbfff16fef1c
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00a6f7020 CR3: 000000000ba8e000 CR4: 0000000000350ee0
Call Trace:
<TASK>
cgroup_account_cputime include/linux/cgroup.h:793 [inline]
update_curr+0x37b/0x840 kernel/sched/fair.c:921
dequeue_entity+0x23/0xfd0 kernel/sched/fair.c:4436
dequeue_task_fair+0x238/0xea0 kernel/sched/fair.c:5785
detach_task kernel/sched/fair.c:7854 [inline]
detach_tasks kernel/sched/fair.c:7992 [inline]
load_balance+0xf26/0x2c40 kernel/sched/fair.c:9930
newidle_balance+0x6fb/0x1190 kernel/sched/fair.c:10939
pick_next_task_fair+0x96/0xe20 kernel/sched/fair.c:7356
__pick_next_task kernel/sched/core.c:5738 [inline]
pick_next_task kernel/sched/core.c:5813 [inline]
__schedule+0x3af/0x4b30 kernel/sched/core.c:6395
schedule+0xd2/0x1f0 kernel/sched/core.c:6503
worker_thread+0x15c/0x1080 kernel/workqueue.c:2457
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 49 83 fd 07 cmp $0x7,%r13
6: 0f 87 af 01 00 00 ja 0x1bb
c: 41 80 3f 00 cmpb $0x0,(%r15)
10: 0f 85 90 01 00 00 jne 0x1a6
16: 4a 03 1c ed e0 78 7f add -0x74808720(,%r13,8),%rbx
1d: 8b
1e: 48 89 d8 mov %rbx,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1)
* 2a: 0f 85 61 01 00 00 jne 0x191 <-- trapping instruction
30: 4c 01 33 add %r14,(%rbx)
33: 48 8d bd 10 01 00 00 lea 0x110(%rbp),%rdi
3a: 48 89 f8 mov %rdi,%rax
3d: 48 rex.W
3e: c1 .byte 0xc1
3f: e8 .byte 0xe8