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Date: Thu, 28 Apr 2011 09:45:34 -0400 From: Chris Mason <chris.mason@...cle.com> To: Colin Ian King <colin.king@...ntu.com> Cc: James Bottomley <james.bottomley@...e.de>, linux-fsdevel <linux-fsdevel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>, linux-kernel <linux-kernel@...r.kernel.org>, linux-ext4 <linux-ext4@...r.kernel.org> Subject: Re: [BUG] fatal hang untarring 90GB file, possibly writeback related. Excerpts from Colin Ian King's message of 2011-04-28 09:42:20 -0400: > > On Thu, 2011-04-28 at 08:29 -0400, Chris Mason wrote: > > Excerpts from Colin Ian King's message of 2011-04-28 07:36:30 -0400: > > > One more data point to add, I've been looking at an identical issue when > > > copying large amounts of data. I bisected this - and the lockups occur > > > with commit > > > 3e7d344970673c5334cf7b5bb27c8c0942b06126 - before that I don't see the > > > issue. With this commit, my file copy test locks up after ~8-10 > > > iterations, before this commit I can copy > 100 times and don't see the > > > lockup. > > > > Well, that's really interesting. I tried with compaction on here and > > couldn't trigger it, but this (very very lightly) tested patch might > > help. > > > Thanks Chris, > > I've given this a soak test but I still see the same lockup. Could you post the soft lockups you're seeing? -chris -- 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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