[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20090113115029.GA12055@elte.hu>
Date: Tue, 13 Jan 2009 12:50:29 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Christophe Saout <christophe@...ut.de>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: Bryan Donlan <bdonlan@...il.com>, linux-kernel@...r.kernel.org,
Nick Piggin <npiggin@...e.de>, linux-mm@...ck.org,
xen-devel@...ts.xensource.com
Subject: Re: [Xen-devel] Re: OOPS and panic on 2.6.29-rc1 on xen-x86
* Christophe Saout <christophe@...ut.de> wrote:
> Hi Bryan,
>
> > I've bisected the bug in question, and the faulty commit appears to be:
> > commit e97a630eb0f5b8b380fd67504de6cedebb489003
> > Author: Nick Piggin <npiggin@...e.de>
> > Date: Tue Jan 6 14:39:19 2009 -0800
> >
> > mm: vmalloc use mutex for purge
> >
> > The vmalloc purge lock can be a mutex so we can sleep while a purge is
> > going on (purge involves a global kernel TLB invalidate, so it can take
> > quite a while).
> >
> > Signed-off-by: Nick Piggin <npiggin@...e.de>
> > Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> > Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
> >
> > The bug is easily reproducable by a kernel build on -j4 - it will
> > generally OOPS and panic before the build completes.
> > Also, I've tested it with ext3, and it still occurs, so it seems
> > unrelated to btrfs at least :)
>
> Nice!
>
> Reverting this also fixes the BUG() I was seeing when testing the Dom0
> patches on 2.6.29-rc1+tip. It just ran stable for an hour compiling
> gimp and playing music on my notebook (and then I had to leave).
okay - i've reverted it in tip/master so that testing can continue - but
the upstream fix (or revert) should be done via the MM folks.
Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists