Date: Sun, 18 Mar 2012 14:36:40 -0400 From: Steve Wills <swills@FreeBSD.org> To: Adam Strohl <adams-freebsd@ateamsystems.com> Cc: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, FreeBSD-Stable ML <freebsd-stable@FreeBSD.org> Subject: Re: Time Clock Stops in FreeBSD 9.0 guest running under ESXi 5.0 Message-ID: <4F662B38.4030700@FreeBSD.org> In-Reply-To: <4F5B5DAB.3010905@ateamsystems.com> References: <4F5B0BB5.5010406@ateamsystems.com> <6D0B99CE-AE11-4250-A8D9-EF66E03E19BB@lists.zabbadoz.net> <4F5B5DAB.3010905@ateamsystems.com>
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On 03/10/12 08:56, Adam Strohl wrote: > On 3/10/2012 17:10, Bjoern A. Zeeb wrote: >> On 10. Mar 2012, at 08:07 , Adam Strohl wrote: >> >>> I've now seen this on two different VMs on two different ESXi servers >>> (Xeon based hosts but different hardware otherwise and at different >>> facilities): >>> >>> Everything runs fine for weeks then (seemingly) suddenly/randomly the >>> clock STOPS. >> >> Apart from the ntp vs. openvm-tools thing, do you have an idea what >> "for weeks" means in more detail? Can you check based on last/daily >> mails/.. how many days it was since last reboot to a) see if it's >> close to a integer wrap-around or b) to give anyone who wants to >> reproduce this maybe a clue on how long they'll have to wait? For >> that matter, is it a stock 9.0 or your own kernel? What other modules >> are loaded? > > Uptime was 31 days on the first incident / server (occurred 5 days ago) > Uptime was 4 days on the second incident / server (occurred last night) > I've experienced something similar once or twice with ESXi 5.0. The second time it happened, I found that kern.timecounter.tc.HPET.counter stopped changing. I was told on IRC that this indicated a "hardware" problem, which I took to indicate a possible bug in ESXi. I haven't upgraded to ESXi 5.0 Update 1 yet to see if that changes anything. Rebooting of course fixed it, it has been a while since this happened and it hasn't happened again since so I haven't pursued it. Just another data point, hope it hopes. Steve
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