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SubjectRe: kexec?
On Wed, May 11, 2005 at 01:51:41PM +0200, Borislav Petkov wrote:
> On Wednesday 11 May 2005 08:04, Maneesh Soni wrote:
> <snip>
> > > > [root@zmei]: kexec -p vmlinux --args-linux --append="root=/dev/hda1
> > > > maxcpus=1 init 1"
> > >
> > > kexec-tools-1.101 loads for me, but if cmdline is used, it hangs up
> > > after "Starting new kernel"
> >
> > Thanks for trying this out. As Vivek mentioned can you please try with
> > bulding second or dump capture kernel with CONFIG_SMP=N and _without_
> > maxcpus= option. Basically the second kernel's job is just to save the dump
> > and it doesnot need to be a SMP kernel. There are some issues with booting
> > SMP kernel as dump capture kernel.
>
> Hm, without 'maxcpus' seems to work. However, when booting into the new
> kernel, the rootfs had to be fsck'ed due to "/ was not cleanly unmounted,
> check forced." and then was forced to reboot linux due to inconsistency in
> the fs. I simply did kexec -l <vmlinux> --args-linux --append="root=/dev/hda1
> init 1" and then kexec -e to execute the loaded image. It seems that the
> filesystems are not unmounted properly before loading the second kernel, (or
> I am missing something..., which is more likely :))
>
> > Also, it would be great help if you can also send us some hardware details
> > about the system you are trying, like lspci,
> [root@zmei] lspci -vv

Thanks Boris, I have updated the kdump test page with details you provided.

http://lse.sourceforge.net/kdump/kdump-test.html

It will be nice if you could try kdump also on the similar lines.

Thanks
Maneesh

--
Maneesh Soni
Linux Technology Center,
IBM India Software Labs,
Bangalore, India
email: maneesh@in.ibm.com
Phone: 91-80-25044990
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