> A INT13 persistent data saving will probably be too hard to implement for
> all kind of storages. So, it will probably need lots of hack in order to
> work. Also, some hardware may even not have any local hard disk. Not sure
> if it is worth to spend time on it.

Linus was pretty clear that he didn't like the idea when
it came up a few weeks ago in the:
 [PATCH 0/2][conce​pt RFC] x86: BIOS-save kernel log to disk upon panic
thread.

Linus ranted:
> Quite frankly, I'm not likely to _ever_ merge anything like this.
>
> Over the years, many people have tried to write things to disk on
> oops. I refuse to take it. No way in hell do I want the situation of
> "the system is screwed, so let's overwrite the disk" to be something
> the kernel I release might do. It's crazy. That disk is a lot more
> important than the kernel, and overwriting it when we might have
> serious memory corruption issues or something is not a thing I feel is
> appropriate.

I agree with him - writing to disk from a known broken kernel (using
a probably buggy BIOS) is a disaster waiting to happen to somebody's
disk.

-Tony

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