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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | INFO: task hung in cgrp_css_online net | 1 | 3 | 2674d | 2675d | 0/29 | closed as invalid on 2018/03/27 11:14 | |||
| upstream | INFO: task hung in cgrp_css_online (2) net | 1 | 7 | 279d | 425d | 0/29 | auto-obsoleted due to no activity on 2025/01/13 23:47 |
INFO: task syz-executor.1:3528 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.1 state:D stack:20696 pid: 3528 ppid: 1 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
cgrp_css_online+0x8c/0x2f0 net/core/netprio_cgroup.c:157
online_css+0xba/0x260 kernel/cgroup/cgroup.c:5319
css_create kernel/cgroup/cgroup.c:5390 [inline]
cgroup_apply_control_enable+0x7d1/0xae0 kernel/cgroup/cgroup.c:3189
cgroup_mkdir+0xdcd/0x1040 kernel/cgroup/cgroup.c:5587
kernfs_iop_mkdir+0x275/0x400 fs/kernfs/dir.c:1175
vfs_mkdir+0x3b6/0x590 fs/namei.c:4065
do_mkdirat+0x260/0x520 fs/namei.c:4090
__do_sys_mkdirat fs/namei.c:4105 [inline]
__se_sys_mkdirat fs/namei.c:4103 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4103
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f509a7d1a67
RSP: 002b:00007ffe3a99dc98 EFLAGS: 00000202 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f509a82f633 RCX: 0
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024/06/08 15:17 | linux-5.15.y | c61bd26ae81a | 82c05ab8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: task hung in cgrp_css_online |