[Ksummit-2012-discuss] [ATTEND] kernel core dump and "dying breath"

[H. Peter Anvin]

On 06/25/2012 02:56 PM, Jiri Kosina wrote:
>>
>> That may have been the turning point at which it stopped working, which
>> would explain it. Shame.
>
> There also was a funny patchset which made the kernel output the panic
> message and stacktrace via morsecode on keyboard LEDs.
>
> Same problem -- easy on PS/2 keyboards, but scheduling all the work
> necessary for completing URBs is just not possible from inside panic.
>

Yeah, that's pretty much what it comes down to.  Unless we want to end 
up with an entirely separate HID stack just for that... but then we'd be 
better off dumping to a USB stick.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.