[llvm-dev] buildbot failure in LLVM on llvm-clang-x86_64-expensive-checks-win

[Daniel Sanders via llvm-dev]

I've been having the same problem for a while on the GlobalISel work. We didn't get to the bottom of it, but it seems likely that the CMake Generator this bot uses forgets to create a dependency.

> On 6 Dec 2017, at 09:40, Oliver Stannard via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> I’ve had another look, and some of the failing tests don’t use temporary files, so I don’t think this is a case of tests having side-effects.
>  
> Instead, I’ve noticed that in the build log (http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6552/steps/build-unified-tree/logs/stdio <http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6552/steps/build-unified-tree/logs/stdio>), llvm-tblgen.exe is built (my patch modified it), but the table-generation steps of the main build (importantly, ARMGenAsmMatcher.inc) do not appear to be running. I think this would explain the FileCheck output from those failing tests.
>  
> Could there be a buildbot misconfiguration which is preventing the newly-built llvm-tblgen from being used?
>  
> Oliver
>  
> From: Galina Kistanova [mailto:gkistanova at gmail.com <mailto:gkistanova at gmail.com>] 
> Sent: 04 December 2017 22:30
> To: Oliver Stannard
> Cc: Sander De Smalen; nd
> Subject: Re: buildbot failure in LLVM on llvm-clang-x86_64-expensive-checks-win
>  
> Hi Oliver,
>  
> I have requested a clean build of that exact revision and all the tests passes.
> http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6561 <http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6561>
>  
> This is kind of bad, as it seems some tests have side effects.
>  
> Thanks
>  
> Galina
>  
>  
>  
> On Mon, Dec 4, 2017 at 5:47 AM, Oliver Stannard <Oliver.Stannard at arm.com <mailto:Oliver.Stannard at arm.com>> wrote:
> Hi Galina,
> 
> This buildbot failure looks related to my patch (blamelist of 1, the failing tests are ones I modified), but it's not clear what is wrong from the lit output, and I haven't been able to reproduce this locally. Would it be possible for you to send me the output of one of the failing llvm-mc commands on that bot?
> 
> Sander also hit a similar problem with the same bot in https://reviews.llvm.org/D40011 <https://reviews.llvm.org/D40011>.
> 
> Thanks,
> Oliver
> 
> > -----Original Message-----
> > From: llvm.buildmaster at lab.llvm.org <mailto:llvm.buildmaster at lab.llvm.org>
> > [mailto:llvm.buildmaster at lab.llvm.org <mailto:llvm.buildmaster at lab.llvm.org>]
> > Sent: 04 December 2017 12:51
> > To: Oliver Stannard
> > Cc: gkistanova at gmail.com <mailto:gkistanova at gmail.com>
> > Subject: buildbot failure in LLVM on llvm-clang-x86_64-expensive-checks-
> > win
> >
> > The Buildbot has detected a new failure on builder llvm-clang-x86_64-
> > expensive-checks-win while building llvm.
> > Full details are available at:
> >  http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks- <http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks->
> > win/builds/6552
> >
> > Buildbot URL: http://lab.llvm.org:8011/ <http://lab.llvm.org:8011/>
> >
> > Buildslave for this Build: ps4-buildslave2
> >
> > Build Reason: scheduler
> > Build Source Stamp: [branch trunk] 319649
> > Blamelist: olista01
> >
> > BUILD FAILED: failed test-check-all
> >
> > sincerely,
> >  -The Buildbot
> >
> >
> 
>  
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