Re: IA64 Kexec-Kdump kernel patch

[Jay Lan <jlan@sgi.com>]

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