On 3/27/07, Vivek Goyal <[EMAIL PROTECTED]> wrote:
> On Tue, Mar 27, 2007 at 03:28:30PM +0900, Magnus Damm wrote:
> > On 3/27/07, Magnus Damm <[EMAIL PROTECTED]> wrote:
> > > Test results for kexec-tools-testing 20070319-rc on i386 and x86_64:
> > >
> > >                          Kexec    Kexec    Kexec    Kexec    Kdump*0  
> > > Kdump*1
> > >                         bzImage  bzImage  vmlinux  vmlinux  bzImage  
> > > bzImage
> > >                           ->       ->       ->        ->      ->       ->
> > > Kernel         Arch     bzImage  vmlinux  vmlinux  bzImage  vmlinux  
> > > bzImage
> > >
> > > 2.6.21-rc5*2   i386      PASS     PASS     FAIL*3   PASS     PASS     PASS
> > > 2.6.21-rc5*2   i386-pae  PASS     PASS     FAIL*3   PASS     PASS     PASS
> > > 2.6.21-rc5     x86_64    PASS     PASS     PASS     PASS
> >
> > Yeah, and kdump + transfer of /proc/vmcore works for x86_64 as well...
> >
> > 2.6.21-rc5     x86_64    PASS     PASS     PASS     PASS     PASS
> >
> > > *2: Single kernel compiled with CONFIG_RELOCATABLE=y
> > > *3: Unstable, sometimes ok
> >
> > These vmlinux->vmlinux failures are annoying, anyone else hitting kernel 
> > BUGs?
> >
>
> What is Kexec vmlinux->vmlinux? Do you mean that you first booted a vmlinux 
> and
> then tried kexecing to same vmlinux? How did you boot into first vmlinux?

I pxeboot into a bzImage, kexec into vmlinux, and then repeat kexecing
into vmlinux. At this stage the kexec vmlinux operation sometimes
files.

> Here Rachita is running into some strange issue where kexec on a x86_64,
> EM64T machine is failing. It seems to be hanging somewhere in purgatory.

I remember having problems using kexec on a certain AMD64 box but the
same kernel worked just fine on the dual opteron machine sitting next
to it... I assumed some kind of chipset problem back then and moved on
to more fun things. =)

> She is using 2.6.21-rc2 kernels and latest kexec-tools. But on the same
> machine RHEL5 kernel/kexec-tools combination works well. Note, RHEL5 kernel
> has got relocatable kernel support.
>
> Same software setup works on a different x86_64 machine, again EM64T. Very
> puzzling that what's wrong. She is still debugging this.

It is not so strange that we experience problems IMO. There are
multiple one-off errors all over the kexec-tools code tree. And maybe
x86_64 machines are more likely to be equipped with exotic memory
configurations that triggers certain bugs, who knows.

Thanks!

/ magnus
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