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Date: Thu, 9 Apr 2009 13:59:50 -0700 From: Ying Han <yinghan@...gle.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Jan Kara <jack@...e.cz>, yinghan@...il.com, linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org, nickpiggin@...oo.com.au Subject: Re: [PATCH] ext2: Fix data corruption for racing writes On Thu, Apr 9, 2009 at 1:30 PM, Andrew Morton <akpm@...ux-foundation.org> wrote: > On Mon, 6 Apr 2009 12:23:29 +0200 > Jan Kara <jack@...e.cz> 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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