| Re: kernel-debuginfo ovz-kernel; kernel panic [message #42255 is a reply to message #42248] |
Sat, 26 March 2011 14:19  |
paix
Messages: 8
Registered: January 2009
Location: ua
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Junior Member |
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Vasily Averin wrote:
>> 1. Does anybody know, where I can obtain the kernel-debuginfo and
>> kernel-debuginfo-common packages for stable ovz-kernel ?
>> (2.6.18-238.5.1.el5.028stab085.2)
>
> I'm sorry, build of debuginfo packages is currently broken in spec.
> however you can rebuild kernel with default config with enabled
> debuginfo option
Thanks for your reply.
1. First I've realized that the newest version of ovz kernel has appeared.
And also there is an ovzkernel-debug package present.
Could you tell me, what the package ovzkernel-debug means ?
Will it enough for debugging the kernel coredump with crash utility ?
2. Following your advice,
I've rebuilded the kernel with the next way:
yum install auto-buildrequires gcc redhat-rpm-config
wget current_kernel_src.rpm
rpm -ivh current_kernel_src.rpm
cd /usr/src/redhat/SPECS/
set in kernel-ovz.spec:
%define _without_debuginfo 0
rpmbuild -bp kernel-ovz.spec
rpmbuild -ba --target=`uname -i` kernel-ovz.spec
And currently I have a choose what kernel version I need to install:
# ls -1 ../RPMS/x86_64/
ovzkernel-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm
ovzkernel-debug-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm
ovzkernel-devel-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm
ovzkernel-xen-2.6.18-238.5.1.el5.028stab085.3.x86_64.rpm
ovzkernel-xen-devel-2.6.18-238.5.1.el5.028stab085.3.x86_64.r pm
And I'm a little confused:
use the official openvz builded ovzkernel-debug \ ovzkernel
or install my own builded kernel ovzkernel or ovzkernel-debug ...
3. It's good for current versions of the kernel, however
how I can analize the obtained vmcores from previous kernels?
To analyze the vmcore with "crash" I need a corresponding mapfile for
that kernel versions.
Or there is not a big sense to do this?
>> 2.
>> After upgrading the server for 16G ram, I started to see a lot of
>> kernel panics.
>>
>>
> Please catch kernel panic messages and report to bugzilla.openvz.org
>
It says something like this:
RIP [<ffffffff802451ae>] rt_check_expire +0xea/0x23b
Kernel panic - not syncing: Fatal exeption
I'm not sure that this will be helpful without analyzing of kernel dump.
Thanks a lot!
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