On Mon, Mar 16, 2015 at 02:03:23PM -0400, Peter Hurley wrote:
> I just managed to reproduce this problem with a test jig;
> can you confirm that your self-tests also use >= 4096-byte read buffer
> (which I think is necessary to trigger the worker race)?
The read which triggers the EIO is indeed using a 4096 byte buffer:
1396 read(17, 0x7f78214c3b30, 4096) = -1 EIO (Input/output error)
We found a simpler reproduce by than the upstart selftest which is included
in the bug linked in the commit text. Specifically in comment 13 [1].
Thanks for looking at this.
-apw
[1] https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1429756/comments/13
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