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SubjectRe: [2.5/2.6] buffer layer error at fs/buffer.c:2800 when unlinking
On Sun, Aug 03, 2003 at 04:51:13PM +0200, Karol Kozimor wrote:
> Hi,
>
> I've recently managed to nail down the problems that have been occuring on
> my machine at least since 2.5.59. I use XFS as my rootfs, no other
> filesystems are compiled in, but I doubt the filesystem is to blame, since
> the problem does not appear under 2.4, despite the similar codebase.
> ...
> Here's the guts: upon unlinking files in /var/{run,lock/subsys} (typically
> during shutdown, but not only), and when doing "dd if=/dev/urandom
> of=/etc/random-seed count=1 bs=512" the following traces appear:
> #v+
> buffer layer error at fs/buffer.c:2800
> Call Trace:
> [<c014f1c6>] drop_buffers+0xb3/0xb9
> [<c014f208>] try_to_free_buffers+0x3c/0x96
> [<c01db1a1>] linvfs_release_page+0x74/0x78
> [<c014d2e6>] try_to_release_page+0x5c/0x6c

Hi there,

This is indeed an XFS issue (thanks for reporting it), the
patch below fixes it.

cheers.

--
Nathan


--- /usr/tmp/TmpDir.2013-0/linux/fs/xfs/linux/xfs_aops.c_1.45 2003-08-07 09:55:53.000000000 +1000
+++ linux/fs/xfs/linux/xfs_aops.c 2003-08-07 09:22:10.808194848 +1000
@@ -803,7 +803,7 @@
bh = bh->b_this_page;
} while (offset < end_offset);

- if (uptodate)
+ if (uptodate && bh == head)
SetPageUptodate(page);

if (startio)
-
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