Re: WARNING: at mm/page-writeback.c:1990__set_page_dirty_nobuffers+0x13a/0x170()

From: Dave Jones
Date: Sun Jun 03 2012 - 14:31:52 EST


On Sun, Jun 03, 2012 at 11:23:29AM -0700, Linus Torvalds wrote:
> On Sun, Jun 3, 2012 at 11:15 AM, Dave Jones <davej@xxxxxxxxxx> wrote:
> >
> > Things aren't happy with that patch at all.
>
> Yeah, at this point I think we need to just revert the compaction changes.
>
> Guys, what's the minimal set of commits to revert? That clearly buggy
> "rescue_unmovable_pageblock()" function was introduced by commit
> 5ceb9ce6fe94, but is that actually involved with the particular bug?
> That commit seems to revert cleanly still, but is that sufficient or
> does it even matter?

I'l rerun the test with that (and Hugh's last patch) backed out, and see
if that makes any difference.

Dave

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