Re: loading new envstat properties reboots system

["Jeremy C. Reed" <reed%reedmedia.net@localhost>]

The envstat output is:
                  Current  CritMax  WarnMax  WarnMin  CritMin Unit
[amdtemp0]
  CPU0 Sensor0:    70.500   92.000                     85.000 degC
  CPU0 Sensor1:    73.250   92.000                     85.000 degC
  CPU1 Sensor0:    68.500   92.000                     85.000 degC
  CPU1 Sensor1:    67.250   92.000                     85.000 degC

The dmesg is at 
http://tx.reedmedia.net:17777/dmesg.boot

NetBSD 5.99.38 NetBSD 5.99.38 (GENERIC) #0: Tue Aug 10 19:00:23 UTC 2010  
builds%b8.netbsd.org@localhost:/home/builds/ab/HEAD/amd64/201008110000Z-obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/GENERIC
 
amd64 x86_64

I set ddb.onpanic=1.

I ran envstat -S and got:

uvm_fault(0xffff80003eb3eba0, 0x0, 4) -> e
fatal page fault in supervisor mode
trap type 6 code 10 rip 0 cs 8 flags 10246 cr2 0 cp 0 rsp ffff8000003e1598c8
kernel: page fault trap, code=0
Stopped in pid 6850.1 (envstat) at     0:  invalid address

bt resulted in
Faulting DDB, continuing

so did a sync and that dumped to dev 0,1 offset 267193
... 3 2 1 succeeded

I have these in /var/crash/

-rw-------  1 root  wheel  449947102 Dec 13 12:17 netbsd.1.core.gz
-rw-------  1 root  wheel     479688 Dec 13 12:17 netbsd.1.gz

(gdb) target kvm netbsd.1.core
#0  0x00000000 in sigcode ()

No problem running this envstat -S at initial startup though (via 
/etc/rc.d script).

(By the way, I don't know why I didn't get this crash dump earlier. I 
thought it was automatic with kern.dump_on_panic=1.)