[PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon panic

H. Peter Anvin hpa at zytor.com
Wed Jan 26 23:44:14 EST 2011

On 01/26/2011 06:13 PM, Vivek Goyal wrote:
>> - Use kexec/kdump. I wonder though, can kexec work on early panics? The
>>    kind where the disk itself might not yet be initialized?
> As of today kexec/kdump does not work with early panics as kdump kernel
> needs to be loaded in reserved memory and that action happens once the
> first kernel has booted.
> There is so much to it that I really don't think that modifying bootloaders to
> do all that might not trivial and more importantly I think it probably is not
> worth the effort.

It's really not all that hard, actually.


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