Hi, I just checked /sys/kernel/kexec_crash_loaded file after giving the kexec -p command for loading panic kernel. And the value was 1. So it was loaded successfully. I then crashed kernel and it hanged. I rebooted manually and checked the value in the file again and it was "0". So across reboot it got reset. So if I assume that the kernel loading was successful, the question remains if it got loaded successfully at the designated space 65M at 16M. How do I know that? I am running SUSE 2.6.25 on a VMWare workstation. Does running on VM could change any thing such as memory layout or anything related to panic handling? You specified taking a look at the /sys/kernel/kexec_crash_loaded file. Is there a central document which documents all these error resolving guidelines? Also I checked in the /var/log/messages and there is no message related to this printed over there. Thank you, Mrunal On Tue, Apr 29, 2008 at 5:17 PM, Neil Horman <nhorman at redhat.com> wrote: > On Tue, Apr 29, 2008 at 03:40:13PM -0700, Mrunal Gawade wrote: > > Thanks Sachin. > > > > The value over there is a "0" which means I have a failure. How do I > > diagnose what is the problem? I was able to load a normal kernel and > then > > use "e" option to reboot into it. But crash dump kernel seemed to be > giving > > problem always. > > > > > > Thank you, > > Mrunal > > > > check /var/log/messages, to see if there is any message there. It > wouldn't hurt > to enable debugging in the kexec binary either, although if the load is > actually > failing, I would think you would get something on stderr. First guess > would be > that you don't have a crashkernel area specified on your command line (or > you > do, and its reservation failed, which also will show up in the logs most > likely) > > Neil > > > On Tue, Apr 29, 2008 at 4:13 AM, Sachin P. Sant <sachinp at in.ibm.com> > wrote: > > > > > Mrunal Gawade wrote: > > > > > > > After I execute this command. Should I expect any prompt that kernel > > > > loaded successfully? > > > > > > > Check the /sys/kernel/kexec_crash_loaded file. Value "1" means > success. > > > > > > Thanks > > > -Sachin > > > > > > > > > _______________________________________________ > > kexec mailing list > > kexec at lists.infradead.org > > http://lists.infradead.org/mailman/listinfo/kexec > > > -- > /*************************************************** > *Neil Horman > *Software Engineer > *Red Hat, Inc. > *nhorman at redhat.com > *gpg keyid: 1024D / 0x92A74FA1 > *http://pgp.mit.edu > ***************************************************/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.infradead.org/pipermail/kexec/attachments/20080429/87dab5ac/attachment.html
