linux-ext4 - Re: help about ext3 read-only issue on ext3(2.6.16.30)

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Message-ID: <CAGBYx2bw4D_MDzNGS-QO92tuJvTN2=j6f1u0Y3ReBM-mj33EOA@mail.gmail.com>
Date:	Thu, 6 Dec 2012 10:58:33 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	qixuan wu <wuqixuan@...il.com>
Cc:	Tao Ma <tm@....ma>, Li Zefan <lizefan@...wei.com>,
	Eric Sandeen <sandeen@...hat.com>,
	Yafang Shao <laoar.shao@...il.com>,
	Linux Filesystem Mailing List <linux-fsdevel@...r.kernel.org>,
	Ext4 Developers List <linux-ext4@...r.kernel.org>,
	wuqixuan@...wei.com
Subject: Re: help about ext3 read-only issue on ext3(2.6.16.30)

Hi quxuan,

Could you have a test with ext3's journal disabled?   In our
production, I encountered several cases where deleting on a deleted
entry happened in ext2, however it doesn''t bother apps, so we didn't
dig the cause.

Yongqiang.

On Wed, Dec 5, 2012 at 11:46 PM, qixuan wu <wuqixuan@...il.com> wrote:
> Hi Tao,
>
> On Wed, Dec 5, 2012 at 9:58 PM, Tao Ma <tm@....ma> wrote:
>> Hi qixuan,
>> On 12/05/2012 12:16 AM, qixuan wu wrote:
>>> Hi Tao, all,
>>>
>>>     I guess it's a memory(or ext3/kenrel) issue. Beause in one
>>> machine, after report this issue, the partition is made to readonly,
>>> we use debugfs to "ls dir", and it's fine. It can list all files
>>> without error. If the disk has issue, when we using ls command, it
>>> will give error also. (The dir name is also using debugfs to get by
>>> issue inode ID.)
>> Are you sure the disk is good? I just checked the code in e2fsprogs, it
>> seems that it will not complain if rec_len = 0, and the dir iteration
>> just aborts. I guess the right way should be dd the corresponding block
>> out, decode and read it in binary format. :(
>
>     Good idea, will do it.
>
> Thanks
> wuqixuan
>
>> Thanks
>> Tao
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--
Best Wishes
Yongqiang Yang
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