Buildbot failure in Wildebeest Builder on whole buildset

Mark Wielaard
Sat Aug 28 14:01:22 GMT 2021


On Fri, Aug 27, 2021 at 11:19:14PM +0000, wrote:
> The Buildbot has detected a new failure on builder elfutils-debian-amd64 while building elfutils.
> Full details are available at:
> Buildbot URL:
> Worker for this Build: debian-amd64
> Build Reason: <unknown>
> Blamelist: Di Chen <>
> BUILD FAILED: failed test (failure)

This took me a while to figure out because it does not consistently
fail.  It turns out that sharing a database between two debuginfod
instances (especially if they forward queries to each other) is not a
good idea.

Hopefully fixed with the attached patch.

At first I had hoped that using -d :memory: would work. But debuginfod
doesn't really support in memory databases like that. It opens the
database twice in read/write and read-only mode. But :memory: is
special and isn't always a new database, so the read-only copy doesn't
see what is in the read/write copy.


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