Locked up processes after upgrade to ZFS v15

[Andriy Gapon]

on 12/10/2010 20:18 Jeremy Chadwick said the following:
> On Tue, Oct 12, 2010 at 07:25:30PM +0300, Andriy Gapon wrote:
>> on 12/10/2010 19:20 Jeremy Chadwick said the following:
>>> On Tue, Oct 12, 2010 at 07:10:36PM +0300, Andriy Gapon wrote:
>>>>> Secondly: the testbox is running kernel/world source from October 8th.
>>>>> I *have not* applied your kernel patch at this point.  Just a FYI.
>>>>
>>>> OK, can you now retest with the patch?
>>>
>>> Will do!  Should have results in the next hour or so (going to start the
>>> buildkernel now).
>>
>> Just in case: KERNFAST=1 makes things really fast :-)
> 
> Hmm, first time I've heard of that one.  Akin to something like NOCLEAN?
> Ah, I'll just look it/the code up myself.  :-)

Yeah :)

> Anyway, system's rebuilt with your patch.  Seems to work!  The sendfile
> regression test now returns to the shell after the mmap test, and the
> DTrace script doesn't output any information, which I imagine is what's
> supposed to happen given the criteria.

Yes.

> I'd say commit it!  :-)

Thanks a lot for testing!

> Also, one thing which I'm sure users or SAs will ask in the meantime:
> what's the workaround, at least for Apache 2.x?  Disable sendfile,
> disable mmap, or both together?

Disabling sendfile should be sufficient.

-- 
Andriy Gapon