Re: [PATCH] ext2: Fix data corruption for racing writes

[Ying Han]

On Thu, Apr 9, 2009 at 1:30 PM, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, 6 Apr 2009 12:23:29 +0200
> Jan Kara <jack@xxxxxxx> wrote:
>
>> >
>> > I tried this patch and seems i got deadlock on the truncate_mutex.
>> > Here is the message after enabling lockdep. I pasted the same message
>> > on the origianal thread.
>>
>> ...
>>
>>   I don't think this is a deadlock (or is the machine hung?). The thread
>> was just waiting for a long time. I'd think that you'll occasionally get
>> exactly the same message even without my patch if you stress the machine
>> like you do.
>>
>
> Well, it's easy to tell the difference
>
> deadlock: system never recovers
> long-sucky-delay: system eventually recovers.
>
> Which was it??
Guess i have to retest it. I didn't wait long enough to see what
happened on the machine. However, i do see the machine got rebooted
later, but i am not sure what is the reason it is got reboot.

I will rerun the patch and keep an eye on it this time.

--Ying
>
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