Possible scheduler (SCHED_ULE) bug?

[Jacob Myers]

Arnaud Houdelette wrote:
> I had the same issue using 7.1 amd64, with ZFS, no SMP.
> Not really sure what is the size boundary. I can't really test either,
> as the machine is remote.
> But I confirm that each tentative upload of certain relatively 'big'
> files (around 1MB) with wordpress hanged the system before I switched
> from sendfile to writev.
> 
> I might do some test on amd64 7.2 with no SMP if it can be of any use ?
> 
> Arnaud

I can confirm it happens without SMP on 7.2 and amd64. If you can give
it a try though, well, the more information the better. Any boundary
information, even approximate (well, mostly testing if 64K is the
boundary or if 1 MB or so is) would probably be good, too.

-- 
Jacob Myers <Jacob at whotookspaz.org> | Website: http://whotookspaz.org
Network Admin, Wilcox Technologies  | Public key: 186A424A
Using FreeBSD since 2007            | Public shell: http://bit.ly/42iGCR
Answer a fool according to his folly, lest he be wise in his own conceit
        -- Proverbs, 26:5

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