Re: [PATCH] fix kexec asm

[Eric W. Biederman]

Chris Mason <mason@xxxxxxxx> writes:

> From: Michael Matz <matz@xxxxxxx>
>
> While testing kexec and kdump we hit problems where the new kernel would
> freeze or instantly reboot.  The easiest way to trigger it was to kexec a
> kernel compiled for CONFIG_M586 on an athlon cpu.  Compiling
> for CONFIG_MK7 instead would work fine.
>
> The patch below fixes a few problems with the kexec inline asm.

Thanks.  Specifying the stomp of %eax in load_segments is definitely
good.  The memory stomp looks excessive and if this was a fast path
I would worry about it.  As it is better safe than sorry.

Acked-By: Eric Biederman <ebiederm@xxxxxxxxxxxx>

Eric
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