Simon Horman wrote: > On Wed, Sep 17, 2008 at 02:07:15PM -0700, Jay Lan wrote: >> Hi, >> >> My root disk was populated with sles10sp2, but the kernel was >> 2.6.27-rc5 and /sbin/kexec was built from 2.0.0 version. >> >> Many times when kdump kernel failed early i found after reboot that >> /sbin/kexec became zero size. There was no warning on executing >> '/etc/init.d/kdump start' when /sbin/kexec is zero size. I have >> no idea when and how that happened. >> >> Has anyone else seen this problem? > > Is it possible that this is caused by filesystem corruption? I found the problems, which i can not reliably reproduce, happened when i ran into kdump kernel boot failure (yet not every time.) What puzzled me was why only /sbin/kexec was affected. I can not explain what caused it (otherwise i would be able to reproduce it) and do not know where my finger should point to. ;) The good news is since i fixed the kernel boot problem it has not happened any more. The distros probably can add a check against zero-sized kexec in /etc/init.d/kdump script though. Thanks, - jay
