Re: How did queensnake corrupt zic.o?

hi guys,
I had to disable ccache on queensnake, all builds are fine right now. Let's
see how it goes.
due OS migration on queensnake (scientific linux -> centos -> rocky linux)
I think it's time to decommission the queensnake and request a new animal
for a new server, maybe.

On Mon, Feb 14, 2022, 03:25 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Thomas Munro <thomas(dot)munro(at)gmail(dot)com> writes:
> > We see a successful compile and then a failure to read the file while
> > linking. We see that the animal got into that state recently and then
> > fixed itself, and now it's back in that state. I don't know if it's
> > significant, but it happened to fix itself when a configure change
> > came along, which might be explained by ccache invalidation; that is,
> > the failure mode doesn't depend on the input files, but once it's
> > borked you need a change to kick ccache. My memory may be playing
> > tricks on me but I vaguely recall seeing another animal do this, a
> > while back.
>
> queensnake's seen repeated cycles of unexplainable build failures.
> I wonder if it's using a bogus ccache version, or if the machine
> itself is flaky.
>
> regards, tom lane
>