From: Dave Jones <davej@redhat.com>
To: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Cong Wang <amwang@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: WARNING: at mm/page-writeback.c:1990 __set_page_dirty_nobuffers+0x13a/0x170()
Date: Fri, 1 Jun 2012 10:14:59 -0400 [thread overview]
Message-ID: <20120601141459.GC1732@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.00.1206010030050.8462@eggly.anvils>
On Fri, Jun 01, 2012 at 01:44:44AM -0700, Hugh Dickins wrote:
> So I'm wondering if your trinity fuzzer happens to succeed a lot more
> often on madvise MADV_REMOVEs than fallocate FALLOC_FL_PUNCH_HOLEs, and
> the bug you converged on is not in tmpfs, but in ext4 (or xfs? or ocfs2?),
> which began to support MADV_REMOVE with that commit.
One more thing: I happened to see this during a kernel build last night
on another machine too, so it's not just fuzzing fallout. I'm surprised more
people aren't seeing it.
Dave
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Jones <davej@redhat.com>
To: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Cong Wang <amwang@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: WARNING: at mm/page-writeback.c:1990 __set_page_dirty_nobuffers+0x13a/0x170()
Date: Fri, 1 Jun 2012 10:14:59 -0400 [thread overview]
Message-ID: <20120601141459.GC1732@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.00.1206010030050.8462@eggly.anvils>
On Fri, Jun 01, 2012 at 01:44:44AM -0700, Hugh Dickins wrote:
> So I'm wondering if your trinity fuzzer happens to succeed a lot more
> often on madvise MADV_REMOVEs than fallocate FALLOC_FL_PUNCH_HOLEs, and
> the bug you converged on is not in tmpfs, but in ext4 (or xfs? or ocfs2?),
> which began to support MADV_REMOVE with that commit.
One more thing: I happened to see this during a kernel build last night
on another machine too, so it's not just fuzzing fallout. I'm surprised more
people aren't seeing it.
Dave
next prev parent reply other threads:[~2012-06-01 14:15 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 16:33 WARNING: at mm/page-writeback.c:1990 __set_page_dirty_nobuffers+0x13a/0x170() Dave Jones
2012-05-30 16:33 ` Dave Jones
2012-05-31 0:57 ` Dave Jones
2012-05-31 0:57 ` Dave Jones
2012-06-01 2:31 ` Dave Jones
2012-06-01 2:31 ` Dave Jones
2012-06-01 2:43 ` Linus Torvalds
2012-06-01 2:43 ` Linus Torvalds
2012-06-01 13:43 ` Dave Jones
2012-06-01 13:43 ` Dave Jones
2012-06-01 8:44 ` Hugh Dickins
2012-06-01 8:44 ` Hugh Dickins
2012-06-01 8:51 ` KOSAKI Motohiro
2012-06-01 8:51 ` KOSAKI Motohiro
2012-06-01 9:08 ` Hugh Dickins
2012-06-01 9:08 ` Hugh Dickins
2012-06-01 9:12 ` KOSAKI Motohiro
2012-06-01 9:12 ` KOSAKI Motohiro
2012-06-01 14:09 ` Dave Jones
2012-06-01 14:09 ` Dave Jones
2012-06-01 14:14 ` Dave Jones [this message]
2012-06-01 14:14 ` Dave Jones
2012-06-01 16:12 ` Dave Jones
2012-06-01 16:12 ` Dave Jones
2012-06-01 17:16 ` Dave Jones
2012-06-01 17:16 ` Dave Jones
2012-06-01 22:17 ` Hugh Dickins
2012-06-01 22:17 ` Hugh Dickins
2012-06-02 1:45 ` Linus Torvalds
2012-06-02 1:45 ` Linus Torvalds
2012-06-02 4:40 ` Hugh Dickins
2012-06-02 4:58 ` Linus Torvalds
2012-06-02 4:58 ` Linus Torvalds
2012-06-02 7:20 ` Hugh Dickins
2012-06-02 7:20 ` Hugh Dickins
2012-06-02 7:17 ` Markus Trippelsdorf
2012-06-02 7:17 ` Markus Trippelsdorf
2012-06-02 7:22 ` Hugh Dickins
2012-06-02 7:22 ` Hugh Dickins
2012-06-02 7:27 ` [PATCH] mm: fix warning in __set_page_dirty_nobuffers Hugh Dickins
2012-06-02 7:27 ` Hugh Dickins
2012-06-03 18:15 ` WARNING: at mm/page-writeback.c:1990 __set_page_dirty_nobuffers+0x13a/0x170() Dave Jones
2012-06-03 18:15 ` Dave Jones
2012-06-03 18:23 ` Linus Torvalds
2012-06-03 18:23 ` Linus Torvalds
2012-06-03 18:31 ` Dave Jones
2012-06-03 18:31 ` Dave Jones
2012-06-03 20:53 ` Dave Jones
2012-06-03 20:53 ` Dave Jones
2012-06-03 21:59 ` Linus Torvalds
2012-06-03 21:59 ` Linus Torvalds
2012-06-03 22:13 ` Dave Jones
2012-06-03 22:13 ` Dave Jones
2012-06-03 22:29 ` Hugh Dickins
2012-06-03 22:29 ` Hugh Dickins
2012-06-03 22:17 ` Hugh Dickins
2012-06-03 22:17 ` Hugh Dickins
2012-06-03 23:13 ` Linus Torvalds
2012-06-03 23:13 ` Linus Torvalds
2012-06-04 0:46 ` KOSAKI Motohiro
2012-06-04 0:46 ` KOSAKI Motohiro
2012-06-04 1:18 ` Hugh Dickins
2012-06-04 1:18 ` Hugh Dickins
2012-06-04 1:21 ` Minchan Kim
2012-06-04 1:21 ` Minchan Kim
2012-06-04 1:26 ` KOSAKI Motohiro
2012-06-04 1:26 ` KOSAKI Motohiro
2012-06-04 2:30 ` Minchan Kim
2012-06-04 2:30 ` Minchan Kim
2012-06-04 1:10 ` Minchan Kim
2012-06-04 1:10 ` Minchan Kim
2012-06-04 1:41 ` Hugh Dickins
2012-06-04 1:41 ` Hugh Dickins
2012-06-04 1:47 ` KOSAKI Motohiro
2012-06-04 1:47 ` KOSAKI Motohiro
2012-06-04 2:28 ` Minchan Kim
2012-06-04 2:28 ` Minchan Kim
2012-06-04 4:21 ` KOSAKI Motohiro
2012-06-04 4:21 ` KOSAKI Motohiro
2012-06-04 13:37 ` Bartlomiej Zolnierkiewicz
2012-06-04 13:37 ` Bartlomiej Zolnierkiewicz
2012-06-01 16:16 ` Markus Trippelsdorf
2012-06-01 16:16 ` Markus Trippelsdorf
2012-06-01 16:28 ` Linus Torvalds
2012-06-01 16:28 ` Linus Torvalds
2012-06-01 16:39 ` Markus Trippelsdorf
2012-06-01 16:39 ` Markus Trippelsdorf
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