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

Mel Gorman [off-list ref] wrote:

mm: compaction: Partially revert capture of suitable high-order page

<snip>
 

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>


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]

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