Something in r291926 (and earlier) causes reboots during periodic daily (14 jails on system)

[Dustin Wenz]

Are you by chance using the ARC patch from this PR?

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=187594

Do you have a vfs.zfs.dynamic_write_buffer tunable defined, if so, what is it set to?

	- .Dustin


> On Dec 9, 2015, at 3:51 AM, Alexander Leidinger <Alexander at Leidinger.net> wrote:
> 
> On Wed, 09 Dec 2015 09:38:07 +0100
> Miroslav Lachman <000.fbsd at quip.cz> wrote:
> 
>> Alexander Leidinger wrote on 12/09/2015 09:00:
> 
>>> Does this ring a bell for someone or any ideas before I try to hunt
>>> this down?
>> 
>> The same problem was reported yesterday on Stable
>> 
>> Periodic jobs triggering panics in 10.1 and 10.2
>> https://lists.freebsd.org/pipermail/freebsd-stable/2015-December/083807.html
>> 
>> Also ZFS with jails.
> 
> The above mail has a backtrace involving ZFS.
> 
> I'm running the periodic scripts serially now, 8 out of 14 already
> finished without issues. Smells like a concurrency issue. I would
> assume it's something introduced between 5 and 1 month ago and MFCed
> back to 10.
> 
> Does this ring a bell for someone on fs@?
> 
> Bye,
> Alexander.
> 
> -- 
> http://www.Leidinger.net Alexander at Leidinger.net: PGP 0xC773696B3BAC17DC
> http://www.FreeBSD.org    netchild at FreeBSD.org  : PGP 0xC773696B3BAC17DC
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