RHEL6: Kernel crash in cgroup_task_migrate when using zombie PID and cgroup - kernel BUG at kernel/cgroup.c:1637!
Issue
- System crashed with following panic message
kernel BUG at kernel/cgroup.c:1637!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/devices/virtual/block/dm-15/uevent
CPU 0
...
Pid: 20758, comm: docker Not tainted 2.6.32-431.el6.x86_64 #1 HP ProLiant DL360p Gen8
RIP: 0010:[<ffffffff810ce335>] [<ffffffff810ce335>] cgroup_task_migrate+0x165/0x190
...
Process docker (pid: 20758, threadinfo ffff885feb9b4000, task ffff885fde6ec080)
..
Call Trace:
[<ffffffff810ce826>] cgroup_attach_proc+0x4c6/0x680
[<ffffffff810cec1b>] attach_task_by_pid+0x8b/0x170
[<ffffffff810ced28>] cgroup_procs_write+0x28/0x40
[<ffffffff810cabaa>] cgroup_file_write+0x2ba/0x320
[<ffffffff8119ab96>] ? sys_mkdirat+0x106/0x1b0
[<ffffffff81188f78>] vfs_write+0xb8/0x1a0
[<ffffffff81189871>] sys_write+0x51/0x90
[<ffffffff8100b072>] system_call_fastpath+0x16/0x1b
Environment
- Red Hat Entreprise Linux 6
- seen on kerne-2.6.32-431.el6
- seen on kernel-2.6.32-504.el6
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