buildbot failure in LLVM on clang-x64-ninja-win7

[Evgenii Stepanov via llvm-commits]

You can request a full rebuild by adding "clobber" as "property 1
name" and "1" as its value in the force build form, if you suspect
that the problem lies there.


On Thu, Oct 22, 2015 at 5:06 PM, Sanjoy Das via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> It looks like both 251045 and 251048 trigger the same failure:
>
> http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/6416 -- 251045
> http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/6415 -- 251048
>
> 251048 is my first change, and 251045 is the change right before.
> Also IIRC the buildbot *was* green on 251045.  Any idea what's going
> on?
>
> It is possible that the changes I made miscompiled a .o file that was
> not re-built in the above two builds.  However it was definitely
> re-built when going *from* 251045 to 251053 (since otherwise the
> miscompile would not have manifested), so the source file in 251045
> vs. in 251053 should be different; and that file have been re-built
> when coming back to 251045 as well.
>
> -- Sanjoy
>
>
>
> On Thu, Oct 22, 2015 at 4:24 PM, Sanjoy Das
> <sanjoy at playingwithpointers.com> wrote:
>> Thanks Galina,  this should help me discover the first breaking
>> revision quickly.
>>
>> -- Sanjoy
>>
>> On Thu, Oct 22, 2015 at 4:17 PM, Galina Kistanova <gkistanova at gmail.com> wrote:
>>>>PS: I noticed the `Force build` form, but wasn't sure if I was okay
>>> using it
>>>
>>> It's ok. Please fill "Branch to build" and "Revision to build:" fields.
>>>
>>> Thanks
>>>
>>> Galina
>>>
>>>
>>>
>>>
>>> On Thu, Oct 22, 2015 at 4:10 PM, Sanjoy Das <sanjoy at playingwithpointers.com>
>>> wrote:
>>>>
>>>> I have not been able to reproduce this issue on a Release without
>>>> asserts bootstrap on OSX or Linux.  I'm trying a Release+Asserts
>>>> bootstrap now.
>>>>
>>>> Since I don't have access to a Windows box, some help on narrowing
>>>> down the issue will be much appreciated.
>>>>
>>>> For instance, is it possible to build and test each of the revisions
>>>> between r251045 and r251053?  Narrowing down the failure to one
>>>> revision will be very helpful.
>>>>
>>>> PS: I noticed the `Force build` form, but wasn't sure if I was okay
>>>> using it.
>>>>
>>>> -- Sanjoy
>>>>
>>>>
>>>> llvm.buildmaster at lab.llvm.org wrote:
>>>> > The Buildbot has detected a new failure on builder clang-x64-ninja-win7
>>>> > while building llvm.
>>>> > Full details are available at:
>>>> >   http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/6404
>>>> >
>>>> > Buildbot URL: http://lab.llvm.org:8011/
>>>> >
>>>> > Buildslave for this Build: windows7-buildbot
>>>> >
>>>> > Build Reason: scheduler
>>>> > Build Source Stamp: [branch trunk] 251053
>>>> > Blamelist: sanjoy
>>>> >
>>>> > BUILD FAILED: failed ninja check 2
>>>> >
>>>> > sincerely,
>>>> >   -The Buildbot
>>>> >
>>>> >
>>>> >
>>>
>>>
>>
>>
>>
>> --
>> Sanjoy Das
>> http://playingwithpointers.com
>
>
>
> --
> Sanjoy Das
> http://playingwithpointers.com
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