Re: [Xen-devel] About how to set crash dump enable

[Ryo Kanbayashi <kanbayashi@xxxxxxxxxxxxxxxxxxxxx>]

Sorry I'd forgotten to reply.

Thanks for your help. Akio.

But, I've been not succeeded.
I'll try continuously :-)

regards.

****************************************
HPCS lab
4th grade student of Colledge of Information Science, University of Tsukuba

Ryo Kanbayashi

<javascript:goWordLink("continuously")>
Akio Takebe wrote:
> Hi, Ryo
>
> Sorry for my late reply.
> I think the difference between linux and xen is only grub/menu.list.
> Can you try;
>
> 1. vim /boot/grub/menu.list
>     title Xen-unstable
>         root (hd0,0)
>         kernel /xen.gz nmi=fatal crashkernel=128M@32M
>         module /vmlinuz-2.6.18-xen ro root=LABEL=/12 rhgb nmi_watchdog=0
>         module /initrd-2.6.18-xen.img
> 2. Setup kdump like the below. (it is the same as linux.)
>    # /sbin/kexec  --args-linux --elf64-core-headers -p \
>      --command-line="ro root=LABEL=/12 irqpoll maxcpus=1" \
>      --initrd="/boot/initrd-2.6.18.img /boot/vmlinuz-2.6.18
>
> You can make kdump kernel by compiling with CONFIG_PROC_VMCORE=y, CONFIG_KEXEC=y
> CONFIG_CRASH_DUMP=y, and so on. RHEL5 kernel is useful. :-)
>
> Best Regards,
>
> Akio Takebe
>
>   
> > Hi, Akio
> >
> > Thanks to your nice advice :-)
> > Due to your advice , I learned relation between crash dump and kdump.
> >
> > But, I've not been able to setup crash kernel correctly.
> > In xen, step to setup kdump kernel is different with ordinary linux kernel?
> >
> > #I tried with kdump.txt in linux kernel document. but....
> >
> > best regards.
> >
> >
> >
> > Akio Takebe wrote:
> >     
> > > Hi, Ryo
> > >
> > >   
> > >       
> > > > (XEN) * no crash kernel loaded!
> > > >     
> > > >         
> > > You should set kexec/kdump completely.
> > > The message means you don't load kdump kernel with kexec command.
> > > zyou can check it by looking at /sys/kernel/kexec_crash_loaded.
> > >
> > > If you cannot load the kernel, please check /proc/iomem.
> > >
> > > Best Regards,
> > >
> > > Akio Takebe
> > >
> > >
> > >   
> > >       
> > ****************************************
> > HPCS lab
> > 4th grade student of Colledge of Information Science, University of Tsukuba
> >
> > Ryo Kanbayashi
> >     
>
>
>   

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