Thread (53 messages) 53 messages, 6 authors, 2013-01-11

Re: ppoll() stuck on POLLIN while TCP peer is sending

From: Mel Gorman <mgorman@suse.de>
Date: 2013-01-11 09:30:53
Also in: linux-mm, lkml

On Fri, Jan 11, 2013 at 12:51:05AM +0000, Eric Wong wrote:
Mel Gorman [off-list ref] wrote:
quoted
mm: compaction: Partially revert capture of suitable high-order page
<snip>
 
quoted
Reported-by: Eric Wong <redacted>
Cc: stable@vger.kernel.org
Signed-off-by: Mel Gorman <mgorman@suse.de>
Thanks, my original use case and test works great after several hours!

Tested-by: Eric Wong <redacted>
Thanks very much Eric. I've resent the patch to Andrew so it should make
its way to mainline. It'll fail to apply to 3.7-stable but I should get
a notification from Greg when that happens and fix it up.
Unfortunately, I also hit a new bug in 3.8 (not in 3.7.x).  based on Eric
Dumazet's observations, sk_stream_wait_memory may be to blame.
Fortunately this is easier to reproduce (I've cc-ed participants
on this thread already): [ref]
It looks like the relevant fix for this has already been written by Eric
Dumazet and picked up by David Miller.

-- 
Mel Gorman
SUSE Labs

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