[llvm-dev] Please help: SVN is broken (original) (raw)

Friedman, Eli via llvm-dev llvm-dev at lists.llvm.org
Tue Sep 19 19:24:23 PDT 2017

On 9/19/2017 6:33 PM, Zachary Turner via llvm-dev wrote:

Hi all, for the past several days I've been dealing with intermittent bot failures due to a recent series of patches which changes some things about lit.

Most of the dust has settled, but there's several bots that just won't stay green. An example is this one: http://lab.llvm.org:8011/builders/llvm-hexagon-elf What happens in all of these cases is that SVN encounters a tree conflict when updating, and then it gets stuck on some messed up of the code where the test suite doesn't match up with the code being tested. But at this point I honestly think this is some kind of bug in SVN or buildbot and I'm not entirely sure what to do about it.  For these affected bots, I can force a clobber by setting build revision to 0 and forcing a build.  This will rm -rf the source tree and check out a new one.  Surely this should resolve any conflicts right?  But it doesn't.  For example: In this build I clobber the source tree.  You can see by clicking the svn-llvm step.  You can see that all tests pass. http://lab.llvm.org:8011/builders/llvm-hexagon-elf/builds/9746 The next build, 9747 also passes and if you click the svn-llvm step you'll see that it just updates some files. But all of a sudden, 9749 fails.  If you look at the svn-llvm step again, you see this:

There are two buildslaves hooked up to that builder, and those two builds did not run on the same slave.

-Eli

-- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project

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