[LLVMdev] Debugging buildbot failure

Stephen Lin swlin at post.harvard.edu
Thu Jul 18 17:02:10 PDT 2013


Even better, someone ought to implement a virtual machine architecture
that purposely broke every possible non-portable assumption in
unexpected and unpredictable ways, as an acid test environment for all
cross-platform projects :)
-Stephen

On Thu, Jul 18, 2013 at 4:51 PM, Rui Ueyama <ruiu at google.com> wrote:
> Yes, it's very likely. It'd be very convenient if we could send a patch to
> buildbots for testing without actually submitting.
>
>
> On Thu, Jul 18, 2013 at 4:38 PM, Eli Friedman <eli.friedman at gmail.com>
> wrote:
>>
>> On Thu, Jul 18, 2013 at 4:29 PM, Rui Ueyama <ruiu at google.com> wrote:
>> > Hi LLVMdev,
>> >
>> > My recent commit r186623 caused buildbots for s390-linux and ppc64-linux
>> > to
>> > fail. I rolled back that commit, and I'm trying to fix to re-submit.
>> >
>> > Is there any good way to debug the issue which does not occur on my
>> > local
>> > x86-64 machine? I don't have S390 nor PPC64 machines.
>>
>> If it's failing on S390 and PPC64 in particular, your code probably
>> accidentally depends on the host endianness.  (Looking at the commit
>> in question seems to confirm that.)
>>
>> -Eli
>
>
>
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