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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| linux-6.1 | INFO: task hung in ppp_release | 1 | 9d12h | 9d12h | 0/3 | upstream: reported on 2024/06/10 07:06 | |||
| upstream | INFO: task hung in ppp_release ppp | 1 | 1481d | 1481d | 0/27 | auto-closed as invalid on 2020/08/28 19:07 | |||
| upstream | INFO: task hung in ppp_release (2) ppp | 1 | 1009d | 1009d | 0/27 | auto-closed as invalid on 2021/12/13 06:07 | |||
| android-49 | INFO: task hung in ppp_release | 1 | 1896d | 1893d | 0/3 | auto-closed as invalid on 2019/10/08 10:46 |
INFO: task syz-executor.2:4638 blocked for more than 143 seconds.
Not tainted 5.15.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26624 pid: 4638 ppid: 3537 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
ppp_release+0x86/0x1f0 drivers/net/ppp/ppp_generic.c:404
__fput+0x3bf/0x890 fs/file_table.c:280
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7c4e64bdda
RSP: 002b:00007fffd3830af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f7c4e64bdda
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: ffffffffffffffff R08: 00007f7c4e5d0000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 00007f7c4e783f80
R13: 00007f7c4e783f8c R14: 0000000000000032 R15: 00007f7c4e785980
</TASK>
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/06/04 19:27 | linux-5.15.y | c61bd26ae81a | 11f2afa5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: task hung in ppp_release |