Messages in this thread |  | | Date | Thu, 3 Jan 2013 23:45:58 +0000 | From | Eric Wong <> | Subject | Re: ppoll() stuck on POLLIN while TCP peer is sending |
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Eric Wong <normalperson@yhbt.net> wrote: > Eric Dumazet <eric.dumazet@gmail.com> wrote: > > With the following patch, I cant reproduce the 'apparent stuck' > > Right, the output is just an approximation and the logic there > was bogus. > > Thanks for looking at this.
I'm still able to reproduce the issue under v3.8-rc2 with your patch for toosleepy.
(As expected when blocked,) TCP send() will eventually return ETIMEOUT when I forget to check (and toosleepy will abort from it)
I think this requires frequent dirtying/cycling of pages to reproduce. (from copying large files around) to interact with compaction. I'll see if I can reproduce the issue with read-only FS activity.
With 3.7.1 and compaction/THP disabled, I was able to run ~21 hours and copy a few TB around without anything getting stuck.
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