Re: [RFC][PATCH] Replace a function call chain of kmsg_dump(KMSG_DUMP_KEXEC) with static function calls

Vivek Goyal
2011-07-18T11:43:54Z

On Sat, Jul 16, 2011 at 09:16:06AM -0700, Eric W. Biederman wrote:

[..]
> Am I wrong in thinking that the core motivation behind this patch is
> that our EFI support sucks and thus kdump on EFI does not work on some
> platforms?

One of the arguments seems is that kdump might not work 100% of the
time and saving kernel messages atleast gets some information out
reliably.

I think being able to save dmesg to NVRAM, in general sounds good to
me (if done in a relatively clean manner). Especially if we can get
rid of code taking locks and code path executed after crash is not
tool long and relatively easy to audit.

Thanks
Vivek