Re: X-freeze after clflush changes [Was: 2.6.23-rc6-mm1]

From: Valdis . Kletnieks
Date: Fri Sep 21 2007 - 13:55:09 EST


On Fri, 21 Sep 2007 19:30:04 +0200, Jiri Slaby said:
> On 09/21/2007 07:16 PM, Valdis.Kletnieks@xxxxxx wrote:
> > On Thu, 20 Sep 2007 17:06:05 CDT, Matt Mackall said:
> >> 2.6.23-rc3-mm1: solid lock on X shutdown (noticed when upgrading)
> >> -rc4-mm1: solid lock on X shutdown, random solid locks about
> >> once every four hours
> >> -rc6-mm1: solid lock on X startup
> >> +your patch: screen goes black, turns off and on a few times during
> >> startup, can reboot with sysrq-b
> >
> > Hmm.. maybe I'm chasing a different bug manifested by the same patch. For me,
> > it's been a solid lockup at X startup since -rc3-mm1, and this patch doesn't
> > change matters.
>
> This patch probably changes behaviour how the pages are queued on the list
> somehow. Maybe it's insane to suggest everybody with similar problem to try
> LIST_DEBUG, but just give it a try after having one of the patches applied ;).
> (Or have you tried yet?)

Haven't tried LIST_DEBUG yet. I'm spending most of the weekend camping, so
will likely be unable to test that until Monday-ish (unless I get lucky and can
get a test in during the next 2 hours)...

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