Re: IA64 Kexec-Kdump kernel patch

Jay Lan
2006-08-16T22:34:52Z

Zou Nan hai wrote:
> On Wed, 2006-08-16 at 03:15, Jay Lan wrote:
>
>>Zou Nan hai wrote:
>>
>
> Did you pass the correct kernel parameter to --append?
> It seems that root filesystem was not able to be mounted.
>

I finally was able to boot up the crash dump kernel.
Unfortunately the 'cp vmcore /var/tmp' crashed due to
out of memory. :(

The memory on the regular kernel showed:
[root@holism tmp]# free
total used free shared buffers cached
Mem: 805312 443520 361792 0 36288 295936
-/+ buffers/cache: 111296 694016
Swap: 6143968 0 6143968

and the memory on the crash dump kernel showed:
[root@holism tmp]# free
total used free shared buffers cached
Mem: 47776 45952 1824 0 1056 11856
-/+ buffers/cache: 33040 14736
Swap: 6143968 54720 6089248

It came down from 805312 k to 47776 k with only 1824 free.
How much memory do i need to do a 'cp /proc/vmcore /var/tmp'?

Thanks,
- jay