10-STABLE hangups frequently

[Kirk McKusick]

> Date: Tue, 2 Feb 2016 19:39:14 +0100
> From: Thierry Thomas <thierry at FreeBSD.org>
> To: Hajimu UMEMOTO <ume at mahoroba.org>
> Cc: stable at FreeBSD.org, mckusick at FreeBSD.org
> Subject: Re: 10-STABLE hangups frequently
> 
>> Hi,
> 
> Hello,
> 
>> I'm disturbed by a frequent hangup of my 10-STABLE boxes since this
>> year.  It seems occur during running the periodic daily scripts.
>> I've narrowed which commit causes this problem.  It seems r292895
>> causes it.  I see many `Resource temporarily unavailable' message just
>> before hangup occurs.
>> Any idea?
> 
> Not exactly the same problem, but it is also occuring during periodic
> daily:
> <https://lists.freebsd.org/pipermail/freebsd-stable/2015-December/083810.html>
> 
> and also:
> <https://lists.freebsd.org/pipermail/freebsd-stable/2015-December/083807.html>
> 
> I'm also experiencing problems during daily periodic on a -STABLE box,
> but no kernel panics: the machine is frozen, and no login is possible, I
> have to hard reboot it.
> 
> For the time being, I have commented out almost every entry in
> periodic.conf, and I'm trying to find the culprit.
> 
> Regards,
> --
> Th. Thomas.

Please let me know if you are able to come up with an example that
shows the problem as that would give me something with which to
try to track down the problem.

	Kirk McKusick