Re: [BUG] fatal hang untarring 90GB file, possibly writebackrelated.
From: James Bottomley
Date: Wed Apr 27 2011 - 16:05:29 EST
On Wed, 2011-04-27 at 12:50 -0500, James Bottomley wrote:
> To test the theory, Chris asked me to try with data=ordered.
> Unfortunately, the deadlock still shows up. This is what I get.
As another data point: I'm trying the same kernel with CONFIG_PREEMPT
enabled. This time the deadlock doesn't happen. Instead, kswapd0 gets
pegged at 99% CPU for much of the untar, but it does eventually
complete.
James
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