[Toybox] [PATCH] Try to debug modinfo test flake.

[Rob Landley]

On 6/12/23 18:35, enh wrote:
>     It's basically "find /dir -name '*.ko'" produces results, or it does not. Not a
>     huge amount of subtlety there. Since it's no longer trying to discard stderr
>     then if nothing is written to stderr, it most likely means there's nothing in
>     that directory. (Even the directory not being there or not being readable should
>     produce an error to stderr, which would show up in the log...)
> 
>     Which means it's a VM setup issue, which is not really my area. :)
> 
> yeah, me neither. i suppose i should +Alistair Delva
> <mailto:adelva at google.com> in case he's interested (internal bug for this was
> https://b.corp.google.com/issues/279863718
> <https://b.corp.google.com/issues/279863718>). but the 0.08% failure rate makes
> me think this clearly isn't a normal state for those VMs to be in!

At one point earlier this year I hit a race condition in the kernel with make
-j>1 where if the last target was "modules_install" it tried to run before the
modules existed, but I'm not reproducing it at the moment...

Rob