Clock on cruncher.build.m.o is wonky

RESOLVED FIXED

Status

mozilla.org Graveyard
Server Operations
--
major
RESOLVED FIXED
8 years ago
3 years ago

People

(Reporter: catlee, Assigned: chizu)

Tracking

Details

(Reporter)

Description

8 years ago
The system time on cruncher keeps going astray.  As of this writing, the clock is 4 minutes in the future.

Restarting the vmware guest tools fixes it temporarily, but then it starts gaining time again.
Duplicate of this bug: 560307
* tried rebooting the machine but that didn't help
* checked other linux machines on bm-vmware05, so the clock on the host is very likely fine
* found 'Timekeeping best practices for Linux guests' in VMWare knowledge base
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006427
* cruncher is RHEL 5.4, running kernel 2.6.18-164.10.1.el5, so I removed the 'clocksource=pit' from the kernel line in /boot/grub/menu.lst
* now up for 15 minutes with stable clock

Interesting things on that doc
* no mention at all of 'clock=pit' for CentOS5 (our build VMs)
* they recommend using ntp as the best clock sync method, which I think is the opposite to what we thought they used to advise
Severity: normal → major
(Assignee)

Updated

8 years ago
Assignee: server-ops → thardcastle
Still stable so we can probably call this fixed. The only concern I have is if we take updates to the OS then whatever writes menu.lst will put the clocksource=pit back in there.
Time is stable.
Status: NEW → RESOLVED
Last Resolved: 8 years ago
Resolution: --- → FIXED
Product: mozilla.org → mozilla.org Graveyard
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