System reboots ~3am during daily periodic 450.status-security run

cary cary at
Mon Dec 2 08:18:33 UTC 2013

Polytropon wrote:
> On Mon, 2 Dec 2013 00:27:18 +0000, dgmm wrote:
>> On Sunday 01 December 2013 23:52:00 dgmm wrote:
>>> My system reboots at 3am when /etc/periodic/daily/450.status-security
>> I've now narrowed it down to:
>> /etc/periodic/security/100.chksetuid
>> ...but have no idea why it might a catastophic crash/reboot.
> A wild guess: File system damage side effect that is being
> triggered by something "non-obvious". To make sure this is
> _not_ the case, reboot into SUM or via live media and perform
> a forced (!) file system check. Note that just in case you
> might think "but I run background fsck and preen, that should
> be sufficient" - it's not; there are few things that only a
> full, _normal_ file system check can detect and repair.
> I'm mentioning this because similar situations have been
> discussed on this list, and finally there was some strange
> file system defect responsible...
> But also make sure system power is good, and the system does
> not become unstable when on load.

Had a 3 a.m. reboot last week.
/usr was corrupted because of my own
errors made while compiling ports.

$ fsck -t ufs -fv /dev/{usr-partition}

cary at
SDF Public Access UNIX System -


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