[arch-general] Bizarre Clock Reset 8/1 -> 9/1 after apcupsd shutdown??

[David C. Rankin]

Guys,

   This is one for you to puzzle over. I've never seen it before. I had an 
apcupsd commanded shutdown at Aug  1 13:20:15 (not uncommon - power is 
terrible). However, when I restarted the hwclock had magically jumped ahead by 
1 full month to Sept. 1. (the box was down for 56 minutes until I returned 
from lunch)

   Then on restart, I was dropped into the maintenance shell and required to 
run fsck manually due to the future date. There was a message that stated 
something line "run fsck manually on /dev/sdc5 ... the system will reboot 
automatically after fsck completes" (this looked like an abbreviated 
maintenance shell -- I guess due to the fact that the root fs was the one that 
was being checked /dev/sdc5.

   fsck completed (e2fsck), but the box didn't reboot. So I typed 'reboot' -- 
nothing happened. Checked /usr/bin and reboot was present. So then I finally 
did ctrl+alt+del and the box restarted. I was then dumped into the normal 
maintenance shell to fsck /home on /dev/sdc7. It completed and reboot worked 
normally.

   My questions are (1) does anybody have any idea how this can happen? (2) 
Anybody else every seen this? and (3) could the kernel apcupsd segfault (shown 
below) be the cause?

   Any ideas welcome. Strange stuff...

   The relevant everything.log snippet and bios info is below:

Aug  1 13:20:15 providence apcupsd[3477]: apcupsd shutdown succeeded
Aug  1 13:20:15 providence kernel: [171092.364247] apcupsd[3477]: segfault at 
0 ip 0805c706 sp bfcdfff0 error 4 in apcupsd[8048000+38000]
Aug  1 13:20:15 providence ntpd[3454]: Listen normally on 6 eth0 192.168.7.124 
UDP 123
Aug  1 13:20:15 providence ntpd[3454]: peers refreshed
Aug  1 13:20:15 providence ntpd[3454]: new interface(s) found: waking up resolver
Aug  1 13:20:15 providence postfix/postfix-script[13735]: stopping the Postfix 
mail system
Aug  1 13:20:15 providence postfix/master[3868]: terminating on signal 15
Aug  1 13:20:15 providence postfix/postfix-script[13738]: waiting for the 
Postfix mail system to terminate
Aug  1 13:20:16 providence dhcpcd[424]: eth0: sending IPv6 Router Solicitation
Aug  1 13:20:19 providence ntpd[3454]: ntpd exiting on signal 15
Aug  1 13:20:19 providence dhcpcd[13884]: sending signal 1 to pid 424
Aug  1 13:20:19 providence dhcpcd[424]: received SIGHUP, releasing
Aug  1 13:20:19 providence dhcpcd[424]: eth0: releasing lease of 192.168.7.124
Aug  1 13:20:19 providence dhcpcd[13884]: waiting for pid 424 to exit
Aug  1 13:20:19 providence dhcpcd[424]: eth0: removing interface
Aug  1 13:20:19 providence kernel: [171096.790000] pcieport 0000:00:1c.0: 
wake-up capability enabled by ACPI
Aug  1 13:20:19 providence syslog-ng[352]: syslog-ng shutting down; 
version='3.3.5'
Sep  1 14:16:20 providence kernel: [    0.000000] Initializing cgroup subsys 
cpuset
Sep  1 14:16:20 providence kernel: [    0.000000] Initializing cgroup subsys cpu
Sep  1 14:16:20 providence kernel: [    0.000000] Linux version 3.4.7-1-ARCH 
(tobias at T-POWA-LX) (gcc version 4.7.1 20120721 (prerelease) (GCC) ) #1 SMP 
PREEMPT Sun Jul 29 20:05:01 UTC 2012

BIOS Information
         Vendor: Dell Inc.
         Version: A04
         Release Date: 02/09/2005


-- 
David C. Rankin, J.D.,P.E.