lkml.org 
[lkml]   [2006]   [Aug]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: swsusp regression [Was: 2.6.18-rc3-mm2]
Rafael J. Wysocki wrote:
> On Monday 07 August 2006 18:23, Jason Lunz wrote:
>> In gmane.linux.kernel, you wrote:
>>>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc3/2.6.18-rc3-mm2/
>>> I tried it and guess what :)... swsusp doesn't work :@.
>>>
>>> This time I was able to dump process states with sysrq-t:
>>> http://www.fi.muni.cz/~xslaby/sklad/ide2.gif
>>>
>>> My guess is ide2/2.0 dies (hpt370 driver), since last thing kernel prints is
>>> suspending device 2.0
>> Does it go away if you revert this?
>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc3/2.6.18-rc3-mm2/broken-out/ide-reprogram-disk-pio-timings-on-resume.patch
>>
>> That should only affect resume, not suspend, but it does mess around
>> with ide power management. Is this maybe happening on the *second*
>> suspend?
>>
>>> -hdc: ATAPI 63X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(33)
>>> +hdc: ATAPI CD-ROM drive, 0kB Cache, UDMA(33)
>> This looks suspicious. -mm does have several ide-fix-hpt3xx patches.
>
> I found that git-block.patch broke the suspend for me. Still have no idea
> what's up with it.

I suspect elevator changes. The wait_for_completion is not woken in ide-io by
ll_rw_blk. But I don't understand block layer too much. Where the
blk_end_sync_rq should be called from (why is not called at all)?

regards,
--
<a href="http://www.fi.muni.cz/~xslaby/">Jiri Slaby</a>
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-08-08 12:11    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site