kdump from x86_64 using i386 capture kernel
stf_xl at wp.pl
Fri Jan 4 07:46:37 EST 2008
I would like to do generic capture system which could be used for x86_64
and i386 first kernels. This system should be minimal, only capable to copy
vmcore image over network for futher analysis. First kernel version is 18.104.22.168,
I choose 2.6.16.y for capture.
I have some problems with vmcore when origin is x86_64. With 32 bit kexec
crash utility do not recognize it, when I use 64 bit kexec /proc/vmcore file
has size == 0. Reading form oldmem is fine, I can for example get old
dmesg from it.
It is possible to achieve valid vmcore when first is x86_64 and capture
is i386 ?
If no, is there some way to convert oldmem to valid vmcore in this scenario?
Or maybe is possible to use crash with copy of oldmem (I try but without any
More information about the kexec