llvm dev - Jul 2013 - [LLVMdev] Debugging buildbot failure

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.
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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

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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