From: Zheng Liu <gnehzuil.liu@gmail.com>
To: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: linux-ext4@vger.kernel.org
Subject: Re: ext4 xfstest regression due to ext4_es_lookup_extent
Date: Sat, 23 Feb 2013 13:36:25 +0800 [thread overview]
Message-ID: <51285559.201@gmail.com> (raw)
In-Reply-To: <87obfcs1x6.fsf@openvz.org>
Hi Dmitry,
Thanks for pointing out. I will fold your patch into this commit, and
take a close look at this bug right now.
Regards,
- Zheng
On 02/23/2013 01:17 AM, Dmitry Monakhov wrote:
>
> 301'th xfstests are failed due to :
> commit d100eef2440fea13e4f09e88b1c8bcbca64beb9f
> Author: Zheng Liu <wenqing.lz@taobao.com>
> Date: Mon Feb 18 00:29:59 2013 -0500
>
> ext4: lookup block mapping in extent status tree
>
> TESTCASE: https://github.com/dmonakhov/xfstests/commit/7b7efeee30a41109201e2040034e71db9b66ddc0
>
> ------------[ cut here ]------------
> kernel BUG at fs/ext4/inode.c:1452!
> invalid opcode: 0000 [#1] SMP
> Modules linked in: cpufreq_ondemand acpi_cpufreq freq_table mperf coretemp kvm_intel kvm crc32c_intel ghash_clmulni_intel microcode sg xhci_hcd button sd_mod crc_t10dif aesni_intel ablk_helper cryptd lrw aes\
> l ahci libahci pata_acpi ata_generic dm_mirror dm_region_hash dm_log dm_mod
> CPU 2
> Pid: 2142, comm: fio Not tainted 3.8.0-rc3+ #41 /DQ67SW
> RIP: 0010:[<ffffffff81333c7b>] [<ffffffff81333c7b>] mpage_da_submit_io+0x41b/0x5b0
> RSP: 0018:ffff8801c2837a48 EFLAGS: 00010202
> RAX: ffff880231e64bb0 RBX: ffff880231e64bb0 RCX: 0000000000000000
> RDX: 0000000000000003 RSI: 0000000000000001 RDI: ffffffff821372d8
> RBP: ffff8801c2837bb8 R08: ffff8801c2837df8 R09: 0000000000000001
> R10: ffff880231e64bb1 R11: 0000000000000003 R12: ffffea00076f5c28
> R13: 00000000000026d0 R14: ffff8801c2837be8 R15: 00000000000ea6d0
> FS: 00007fefeaeb5700(0000) GS:ffff88023d800000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007fefdf10299c CR3: 0000000209154000 CR4: 00000000000407e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process fio (pid: 2142, threadinfo ffff8801c2836000, task ffff8801d3c48580)
> Stack:
> ffffffff82030f00 ffff8801c2837b58 ffff8801c2837df8 0000000000000000
> ffff880231e64bb1 0000000000000001 ffff880231e64bb0 000000002ba68688
> ffff8801c2837ae8 00000000000d4800 ffff880231f1cb98 00000000000026d0
> Call Trace:
> [<ffffffff81339769>] mpage_da_map_and_submit+0x369/0x3d0
> [<ffffffff81339acb>] write_cache_pages_da+0x1db/0x6f0
> [<ffffffff8133b07f>] ext4_da_writepages+0x49f/0x8b0
> [<ffffffff81105d9a>] ? __lock_acquire+0x4ca/0x560
> [<ffffffff811b4421>] do_writepages+0x51/0x70
> [<ffffffff8119fc24>] __filemap_fdatawrite_range+0x64/0x70
> [<ffffffff811a6a8b>] sys_fadvise64_64+0x25b/0x300
> [<ffffffff811a6b3e>] sys_fadvise64+0xe/0x10
> [<ffffffff818e9e99>] system_call_fastpath+0x16/0x1b
> Code: a0 fe ff ff 4c 8b 95 b0 fe ff ff 49 63 d1 48 83 c2 02 48 8b 34 d5 30 4c 2b 82 48 83 c6 01 45 85 c9 48 89 34 d5 30 4c 2b 82 74 04 <0f> 0b eb fe 41 0f b6 56 13 83 e2 01 48 63 f2 48 83 c6 02 48 8b
> RIP [<ffffffff81333c7b>] mpage_da_submit_io+0x41b/0x5b0
> RSP <ffff8801c2837a48>
> ---[ end trace 6f79fb4f46cf9f0e ]---
> ------------[ cut here ]------------
>
> Commit (d100eef2) this is very first commit where we try to make
> extent-status-tree usefull. Definitely this is because cached value
> is out of sync with real on-disk structure. I'll try to find out exact
> place where this happen, but i'm shure this is just a beginning.
> So Zheng please add sane self-testing infastructure for extent status
> tree, for example like follows:
>
next prev parent reply other threads:[~2013-02-23 5:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-22 17:17 ext4 xfstest regression due to ext4_es_lookup_extent Dmitry Monakhov
2013-02-22 18:03 ` Theodore Ts'o
2013-02-23 9:37 ` Dmitry Monakhov
2013-02-23 10:00 ` Zheng Liu
2013-02-24 0:14 ` Theodore Ts'o
2013-02-24 3:21 ` Zheng Liu
2013-02-26 23:18 ` [PATCH] jbd2: Fix ERR_PTR dereference in jbd2__journal_start Dmitry Monakhov
2013-03-02 22:10 ` Theodore Ts'o
2013-02-23 5:36 ` Zheng Liu [this message]
2013-02-24 14:58 ` ext4 xfstest regression due to ext4_es_lookup_extent Zheng Liu
2013-02-25 8:39 ` Dmitry Monakhov
2013-02-25 9:57 ` Zheng Liu
2013-02-26 20:06 ` Theodore Ts'o
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