Fwd: [CRON] Broken: ClangBuiltLinux/continuous-integration#1432 (master - 0aceafc)

[Michael Ellerman]

Nathan Chancellor <natechancellor at gmail.com> writes:
> On Tue, May 19, 2020 at 05:56:32PM -0700, 'Nick Desaulniers' via Clang Built Linux wrote:
>> Looks like our CI is still red from this:
>> 
>> https://travis-ci.com/github/ClangBuiltLinux/continuous-integration/builds/166854584
>> 
>> Filing a bug to follow up on:
>> https://github.com/ClangBuiltLinux/linux/issues/1031
>> 
>> On Thu, May 7, 2020 at 8:29 PM Michael Ellerman <mpe at ellerman.id.au> wrote:
>> >
>> > Nick Desaulniers <ndesaulniers at google.com> writes:
>> > > Looks like ppc64le powernv_defconfig is suddenly failing the locking
>> > > torture tests, then locks up?
>> > > https://travis-ci.com/github/ClangBuiltLinux/continuous-integration/jobs/329211572#L3111-L3167
>> > > Any recent changes related here in -next?  I believe this is the first
>> > > failure, so I'll report back if we see this again.
>> >
>> > Thanks for the report.
>> >
>> > There's nothing newly in next-20200507 that seems related.
...
>
> This is probably still a manifestation of
> https://github.com/ClangBuiltLinux/continuous-integration/issues/262
> because rekicking the tests usually fixes it.

Oh yep.

I was looking at the RCU warning, which I still don't understand, but
the lockup is presumably the same problem you hit with interrupts being
lost.

> We should probably just disable the torture tests like we do for x86_64
> for CI because we do not have access to QEMU 5.0.0 where this should be
> fixed. I believe it is slated for 4.2.1 as well but we still have to
> wait for that to be updated and packaged in Ubuntu.

You just need to start building Qemu HEAD as part of your CI ;)

cheers