[llvm] r272021 - [lit] Improve logging with file redirection.

[Hans Wennborg via llvm-commits]

On Fri, Jun 10, 2016 at 1:13 AM, Sean Silva <chisophugis at gmail.com> wrote:
> On Thu, Jun 9, 2016 at 1:36 PM, Hans Wennborg via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
>>
>> This makes the test suite hang for me on 32-bit Windows builds. It
>> runs fine at r272019, but hangs at this revision (and also on
>> ToT/r272292).
>>
>> I'm not sure how to debug this.
>
> Try tracing with procmon:
> https://technet.microsoft.com/en-us/sysinternals/processmonitor.aspx
> (pretty good intro video: https://www.youtube.com/watch?v=m06YqR09UXw)
>
> I can't tell you how many times procmon has saved me :)

Thanks! I'll look into that next time :-)

Cheers,
Hans