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Linux Forum Index » Linux Miscellaneous Topics 2 » kdump does not write vmcore to get a crash-dump...
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| Rahul... |
 Posted: Wed Oct 08, 2008 4:08 pm |
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Guest
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On my Centos system I installed kexec/kdump to investigate the cause of
some random system-crashes by getting access to a crash-dump. I installed
the rpm for kexec and then made the change to grub.conf that reserves the
additional memory for the new kernel.
Also configured kdump.conf. I start the kexec service.and then I tried to
simulate a crash by echo c to sysrq-trigger.
The system does crash and then after a while reboots itself. But I see no
vmcore when it coms back up. /var/crash is empty. This is when I tried to
write to local drive.
I also tried a nfs write but then still no success.
Any idea what could be missing in my steps? Or any other debug sugesstions?
--
Rahul |
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