INFO: task syz-executor198:5885 blocked for more than 143 seconds.
Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor198 state:D stack:25136 pid:5885 tgid:5885 ppid:5088 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
cec_claim_log_addrs+0x193/0x260 drivers/media/cec/core/cec-adap.c:1606
__cec_s_log_addrs+0x1699/0x1de0 drivers/media/cec/core/cec-adap.c:1920
cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline]
cec_ioctl+0x223c/0x3330 drivers/media/cec/core/cec-api.c:528
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:857
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f526b32ae69
RSP: 002b:00007ffe955888a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f526b32ae69
RDX: 0000000020000040 RSI: 00000000c05c6104 RDI: 0000000000000003
RBP: 00000000000f4240 R08: 00236365632f7665 R09: 00000000000000a0
R10: 000000000000000f R11: 0000000000000246 R12: 0000000000049146
R13: 00007ffe955888bc R14: 00007ffe955888d0 R15: 00007ffe955888c0
INFO: task syz-executor198:11321 blocked for more than 143 seconds.
Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor198 state:D stack:26968 pid:11321 tgid:11321 ppid:5092 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
cec_claim_log_addrs+0x193/0x260 drivers/media/cec/core/cec-adap.c:1606
__cec_s_log_addrs+0x1699/0x1de0 drivers/media/cec/core/cec-adap.c:1920
cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline]
cec_ioctl+0x223c/0x3330 drivers/media/cec/core/cec-api.c:528
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:857
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f526b32ae69
RSP: 002b:00007ffe955888a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f526b32ae69
RDX: 0000000020000040 RSI: 00000000c05c6104 RDI: 0000000000000003
RBP: 00000000000f4240 R08: 00236365632f7665 R09: 00000000000000a0
R10: 000000000000000f R11: 0000000000000246 R12: 000000000004d213
R13: 00007ffe955888bc R14: 00007ffe955888d0 R15: 00007ffe955888c0
INFO: task syz-executor198:15810 blocked for more than 144 seconds.
Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor198 state:D stack:26160 pid:15810 tgid:15810 ppid:5090 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
cec_claim_log_addrs+0x193/0x260 drivers/media/cec/core/cec-adap.c:1606
__cec_s_log_addrs+0x1699/0x1de0 drivers/media/cec/core/cec-adap.c:1920
cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline]
cec_ioctl+0x223c/0x3330 drivers/media/cec/core/cec-api.c:528
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:857
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f526b32ae69
RSP: 002b:00007ffe955888a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f526b32ae69
RDX: 0000000020000040 RSI: 00000000c05c6104 RDI: 0000000000000003
RBP: 00000000000f4240 R08: 00236365632f7665 R09: 00000000000000a0
R10: 000000000000000f R11: 0000000000000246 R12: 00000000000504ac
R13: 00007ffe955888bc R14: 00007ffe955888d0 R15: 00007ffe955888c0
Showing all locks held in the system:
2 locks held by ksoftirqd/1/22:
#0: ffff8880b953c958 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1: ffff8880b9528988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
1 lock held by khungtaskd/29:
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4827:
#0: ffff88802afed0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor198/11013:
#0: ffff8880b953c958 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #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:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5087 Comm: syz-executor198 Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:__switch_to_asm+0x5a/0x70 arch/x86/entry/entry_64.S:208
Code: 00 00 00 e8 01 00 00 00 cc e8 01 00 00 00 cc 48 83 c4 10 49 ff cc 75 eb 0f ae e8 65 48 c7 04 25 10 bf 03 00 ff ff ff ff 41 5f <41> 5e 41 5d 41 5c 5b 5d e9 79 5e 31 00 66 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000313f830 EFLAGS: 00000046
RAX: 1ffff1101728792a RBX: 3d37e8c7d8682900 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: ffff888073e71dc0 RDI: ffff88801e115940
RBP: ffffc90003aaf8b0 R08: ffffffff8f8568af R09: 1ffffffff1f0ad15
R10: dffffc0000000000 R11: fffffbfff1f0ad16 R12: 0000000000000000
R13: 0000607f4681d9e0 R14: dffffc0000000000 R15: ffff888073f14c00
FS: 0000555556d3f380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f526b3a5210 CR3: 000000002dddc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace: