Re: Weird failure in explain.out with OpenBSD

From: Mikael Kjellström <mikael(dot)kjellstrom(at)mksoft(dot)nu>
To: Andres Freund <andres(at)anarazel(dot)de>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Cc: Michael Paquier <michael(at)paquier(dot)xyz>, Mikael Kjellström <mikael(dot)kjellstrom(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Weird failure in explain.out with OpenBSD
Date: 2021-11-11 06:18:49
Message-ID: 56122ffa-f4ce-97a2-262a-1f59f149c381@mksoft.nu
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On 2021-11-11 04:35, Andres Freund wrote:

> One quite conceivable way could be a VM migration. Which quite a few hosters
> can do behind ones back, to reduce downtimes in case of hardware maintenance
> etc. If openbsd is using the TSC, and something in the stack isn't quite
> dealing correctly with the necessary tsc offset / speed correction values
> you'd expect to see something like this.

No VM migration as this is a stand alone ESXI host.

It's not using TSC as clock source. It's using acpitimer0 at acpi0:
3579545 Hz, 24 bits.

/Mikael

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