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SubjectRe: [PATCH v8]: Improve performance of LZO/plain hibernation
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------- Original message -------
> From: Pekka Enberg <penberg@cs.helsinki.fi>
> To: rjw@sisk.pl
> Cc: bojan@rexursive.com, linux-kernel@vger.kernel.org,
> linux-pm@lists.linux-foundation.org
> Sent: 9.10.'11, 20:22
> On Thu, Oct 6, 2011 at 9:45 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>> The panic happens during late resume, when trying to switch to the
>> hibernated
>> kernel.
>
> Is there some way to autotest hibernation? I could try to reproduce
> the issue but I'm certainly not going to hibernate/resume by hand...
> :-)

I kinda remember reading in one of the bug reports for Intel graphics about
someone doing it. Not sure how, to be honest. Rafael will know for sure.

May be related, when I simulate image loading failure by returning error
from load_image(), I get bad page state error, count -1, so something is
amiss. Probably the readahead buffers or maps.

PS. I will also rewrite some of the vmalloc() calls to kmalloc(). No point
wasting whole pages for small objects.

--
Bojan


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