kdump on ia64 with 2.6.20-rc4 > no vmcore ?

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On Thu, Jan 11, 2007 at 01:06:11PM +0100, Welterlen Benoit wrote:
> Hello all,
> 
> I try kdump with 2.6.20-rc4 kernel from kernel.org.
> I successfully reboot on the debug kernel after c sys-rq but I have an
> error :
> Kdump: vmcore not initialized
> 
> I can not access the /proc/vmcore with crash or gdb.
> In the source code, it can be in parse_crash_elf_headers,
> parse_crash_elf64_headers or other, but I have no more messages from the
> kernel.

you can use /proc/cmdline in second kernel to see exactly what options
were passed to this kernel.

> How can I check that the elfcorehdr_addr has been passed correctly by
> the crashed kernel ?
> Did you already see this kind of problem ? Is there an other patch to
> apply on the kernel or kernel.org is the only source to have kdump working ?

I don't test it on IA64. Nanhai, Magnus or Horms do lot of testing on IA64.

Thanks
Vivek


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