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| author | Jan Rekorajski <baggins@sith.mimuw.edu.pl> | 2009-11-16 11:57:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-06 14:26:44 -0800 |
| commit | 64b220304ef04ce44243aae5f477407a7dc26fa6 (patch) | |
| tree | 4d27ef7f92a6da6fee1fa93d8bf7a351bdb08d39 | |
| parent | 1bb36e83e350d997fb109b77e41bf4dce57ffe58 (diff) | |
| download | lwn-64b220304ef04ce44243aae5f477407a7dc26fa6.tar.gz lwn-64b220304ef04ce44243aae5f477407a7dc26fa6.zip | |
XFS bug in log recover with quota (bugzilla id 855)
commit 8ec6dba2581754e375be66f7bedd708d856d8b30 upstream.
Hi,
I was hit by a bug in linux 2.6.31 when XFS is not able to recover the
log after a crash if fs was mounted with quotas. Gory details in XFS
bugzilla: http://oss.sgi.com/bugzilla/show_bug.cgi?id=855.
It looks like wrong struct is used in buffer length check, and the following
patch should fix the problem.
xfs_dqblk_t has a size of 104+32 bytes, while xfs_disk_dquot_t is 104 bytes
long, and this is exactly what I see in system logs - "XFS: dquot too small
(104) in xlog_recover_do_dquot_trans."
Signed-off-by: Jan Rekorajski <baggins@sith.mimuw.edu.pl>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Cc: Simon Kirby <sim@hostway.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | fs/xfs/xfs_log_recover.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 47da2fb45377..83ebd523bf74 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1980,7 +1980,7 @@ xlog_recover_do_reg_buffer( "XFS: NULL dquot in %s.", __func__); goto next; } - if (item->ri_buf[i].i_len < sizeof(xfs_dqblk_t)) { + if (item->ri_buf[i].i_len < sizeof(xfs_disk_dquot_t)) { cmn_err(CE_ALERT, "XFS: dquot too small (%d) in %s.", item->ri_buf[i].i_len, __func__); @@ -2635,7 +2635,7 @@ xlog_recover_do_dquot_trans( "XFS: NULL dquot in %s.", __func__); return XFS_ERROR(EIO); } - if (item->ri_buf[1].i_len < sizeof(xfs_dqblk_t)) { + if (item->ri_buf[1].i_len < sizeof(xfs_disk_dquot_t)) { cmn_err(CE_ALERT, "XFS: dquot too small (%d) in %s.", item->ri_buf[1].i_len, __func__); |