nanog mailing list archives
Re: Leap second tonight
From: Adrian Chadd <adrian () creative net au>
Date: Tue, 6 Jan 2009 01:30:51 +0900
This begs the question - how the heck do timekeepers and politicians get away with last minute time changes? Surely there's -some- pushback from technology related interest groups to try and get more than four weeks warning? :) Adrian On Mon, Jan 05, 2009, Frank Bulk wrote:
A report from a DHCP/DNS appliance vendor here: ==================== Several customers have reported a complete lock-up of their Proteus system around the beginning of January 1st 2009. We believe that we have traced this to a problem in the underlying kernel and NTP and the handling of the date change associated with 2008 being a Leap Year and therefore having 366 days. Several conditions must be met to trigger this problem: 1. The Proteus was originally installed as v2.1.x or earlier. 2. NTP is enabled as a client with 2 or more external source servers defined. 3. There is a discrepancy in the times reported back by these other NTP servers. There is no correction available at this time, and the resolution is to power cycle the system, after which it will run fine. If you experienced a similar problem at the indicated time, please submit a trouble ticket so that we can confirm that this occurred on your system. ==================== I don't know what the underlying OS is. Frank -----Original Message----- From: Kevin Day [mailto:toasty () dragondata com] Sent: Wednesday, December 31, 2008 4:42 PM To: NANOG list Subject: Leap second tonight Just a reminder that there's a leap second tonight. Last time I watched for what happened on 01/01/2006, there was a little bit of chaos: http://markmail.org/message/cpoj3jw5onzhhjkr?q=%22kevin+day%22+leap+second+r eminder+nanog&page=1&refer=cnkxb3iv7sls5axu I've been told that some of the causes of these problems are fixed on any reasonably recent ntp distribution, but just in case, you might wanna keep an eye out if you're seeing any weirdness. The worst damage I'd heard from anyone after that event was their clock being significantly off for several hours. -- Kevin
-- - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid Support - - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA -
Current thread:
- Re: Leap second tonight, (continued)
- Re: Leap second tonight Simon Lockhart (Jan 01)
- Re: Leap second tonight Wil Schultz (Jan 01)
- Re: Leap second tonight Simon Lockhart (Jan 01)
- Re: Leap second tonight Jeff Wasilko (Jan 01)
- Re: Leap second tonight Thomas Habets (Jan 04)
- Re: Leap second tonight Simon Lockhart (Jan 01)
- Re: Leap second tonight Chris Adams (Jan 01)
- Re: Leap second tonight Eddie (Jan 01)
- Re: Leap second tonight Adrian Chadd (Jan 05)
- Re: Leap second tonight Nick Hilliard (Jan 05)
- Re: Leap second tonight Adrian Chadd (Jan 05)
- Re: Leap second tonight Nick Hilliard (Jan 05)
- Re: Leap second tonight Leo Vegoda (Jan 05)
- RE: Leap second tonight Buhrmaster, Gary (Jan 05)