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From: Dongsu Park <dongsu.park@profitbricks.com>
To: Jan Kara <jack@suse.cz>
Cc: fstests@vger.kernel.org
Subject: Re: Test xfs/106 failure
Date: Wed, 18 Feb 2015 11:21:26 +0100	[thread overview]
Message-ID: <20150218102126.GA2631@posteo.de> (raw)
In-Reply-To: <20150217163149.GA1824@quack.suse.cz>

Hi Jan,

On 17.02.2015 17:31, Jan Kara wrote:
>   Hello,
>   I'm consistently getting failure in xfs/106 test because the files
> created by fsstress are just completely different from what they are
> expected to be. It almost seems as if the random numbers generated for
> fsstress are different. Anyone has seen this as well?

That reminds me of a bug that has occurred every time when I run xfs/106.
The crash happens only with CONFIG_XFS_DEBUG enabled.
When I first discovered that, I disabled CONFIG_XFS_DEBUG as a workaround.
As far as I remember, it started to occur since 3.19-rc?, and the first
bad commit was 14bf61ffe6ac ("quota: Switch ->get_dqblk() and ->set_dqblk()
to use bytes as space units"). I just tested it again with
linux-block.git/for-3.20/drivers. The bug is still there.

Cheers,
Dongsu

====
XFS (vdc1): Quotacheck: Done.
XFS: Assertion failed: dst->d_spc_timer != 0, file: fs/xfs/xfs_qm_syscalls.c, line: 893
------------[ cut here ]------------
kernel BUG at fs/xfs/xfs_message.c:106!
invalid opcode: 0000 [#1] SMP 
CPU: 0 PID: 4031 Comm: xfs_quota Tainted: G        W      3.19.0-rc7+ #174
RIP: 0010:[<ffffffff813a9202>]  [<ffffffff813a9202>] assfail+0x22/0x30
Call Trace:
 [<ffffffff813d4de4>] xfs_qm_scall_getquota+0x284/0x330
 [<ffffffff813dce08>] xfs_fs_get_dqblk+0x68/0x90
 [<ffffffff81292b6f>] quota_getxquota+0x6f/0x200
 [<ffffffff812931cc>] SyS_quotactl+0x4cc/0x740
 [<ffffffff817f4cf7>] ? sysret_check+0x1b/0x56
 [<ffffffff8151aa1b>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff817f4cd2>] system_call_fastpath+0x12/0x17
RIP [<ffffffff813a9202>] assfail+0x22/0x30
 RSP <ffff88007a9e7d08>
---[ end trace 308df0cc6a9ba1d0 ]---
====

> 								Honza
> 
> -- 
> Jan Kara <jack@suse.cz>
> SUSE Labs, CR
> --
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  parent reply	other threads:[~2015-02-18 10:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-17 16:31 Test xfs/106 failure Jan Kara
2015-02-18  1:15 ` Dave Chinner
2015-02-18 10:21 ` Dongsu Park [this message]
2015-02-18 10:41   ` Jan Kara
2015-02-18 11:04     ` Dongsu Park

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