> From: Tom Haapanen <tomh@metrics.com>
>
> >From our new web server today:
>
> stratos 142 % egrep "uvm|ROBINSON" messages 
> Feb 22 11:15:32 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 11:15:42 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 11:54:53 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 12:15:02 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 12:15:17 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 12:16:03 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 13:03:58 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 13:05:33 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 13:11:39 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 13:34:05 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 17:04:10 stratos /netbsd: panic: uvm_fault_unwire: unwiring non-wired
> mem
> ory
> Feb 22 17:04:11 stratos savecore: reboot after panic: uvm_fault_unwire:
> unwiring
>  non-wired memory
> Feb 22 17:27:28 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
> Feb 22 17:27:30 stratos /netbsd: DANGER WILL ROBINSON: FEN SET IN cpu_fork!
>
> I thought this was one of those non-reproducible problems?  :-(
>
> NetBSD/Alpha 1.4.1, 164SX/500, 128 MB, 10 GB IDE disk, running Apache.

So did I. I've never seen more than one in a day, and one in six months is
(was?) the typical case. AFAIK, the FEN message has never been associated
with a glitch or crash. I suppose this is just from unattended ops on your
www server?  That is, it still is not reproducible on demand, right? Just
reproducible on a daily basis? Does it do that every day, or did it just
happen on Feb 22?

Are you doing any paging or swapping?

	Ross