Re: [Crash-utility] crash: vz extension for OpenVZ kernels
----- Original Message -----
Dear Dave,
I've prepared vz crash extension with commands
useful for troubleshooting of OpenVZ kernel crashes.
Could you please review the patch and advise how it's better
to distribute this extension.
vz extension uses openVZ-specific kernel structures
and works on OpenVZ kernels only.
Vasily,
I no longer accept extension modules as part of the base
crash utility package. However, I do offer to host them
on the crash extension modules page that is available from
the main web site. Would you like me to post the module there?
Dave
It implements vzlist, vzps and ctid commands:
vzlist -- shows list of OpenVZ containers,
contains Container ID, references to ve_struct
and parent task inside container.
crash> vzlist
CTID VE_STRUCT TASK PID COMM
121 ffff8801491e7000 ffff8801493d0ff0 95990 init
123 ffff880135a37000 ffff8803fb0a3470 95924 init
321 ffff88045a778000 ffff880400616300 95923 init
700 ffff88019ddae000 ffff88019ddd4fb0 95882 init
503 ffff88045a84e800 ffff8803c3c782c0 95902 init
122 ffff8804004ea000 ffff88045612afb0 95886 init
600 ffff88016e467000 ffff880459d653f0 95885 init
0 ffffffff81aaa220 ffff88045e530b30 1 init
vzps -- shows list of processes inside of specified container
crash> vzps -E 121
CTID PID TASK COMM
121 95990 ffff8801493d0ff0 init
121 95996 ffff8803c3e3b0f0 kthreadd/121
121 95997 ffff8803cd3aacb0 khelper/121
121 97267 ffff880405e4b2f0 udevd
121 99341 ffff8803c3fd2440 syslogd
121 99404 ffff880405e0c2c0 klogd
121 99424 ffff8803fb0f68c0 sshd
121 99445 ffff8801493d0500 xinetd
121 99557 ffff8804599f9230 sendmail
121 99568 ffff8804591b00c0 sendmail
121 99583 ffff880203e56f30 httpd
121 99594 ffff88016e4e01c0 crond
121 99614 ffff8803fb26cf70 xfs
121 99624 ffff88045a6ce2c0 saslauthd
121 99625 ffff8801ce134ff0 saslauthd
121 248691 ffff88040e2ee9c0 httpd
ctid -- shows ContainerID for given task
crash> ctid 99614
CTID PID TASK COMM
121 99614 ffff8803fb26cf70 xfs
Thank you,
Vasily Averin