From: Todd Lyons Date: Thu, 12 Jun 2014 20:21:24 +0000 (-0700) Subject: Add extreme debugging example X-Git-Url: https://git.exim.org/buildfarm-client-wiki.git/commitdiff_plain/bf8b8d41413f65b23be9afdd62112dd9db5bf9ad?ds=sidebyside Add extreme debugging example --- diff --git a/TestingBuilds.md b/TestingBuilds.md index 855bb16..3b71b1c 100644 --- a/TestingBuilds.md +++ b/TestingBuilds.md @@ -57,3 +57,15 @@ In each of the following sample command lines, remember that `--test` will force 8. Just build docs, but allow it to submit results (not advised since you aren't building the actual binary) : `./run_build.pl --force --only-steps=configure,make-doc` + +### Extreme test debugging +Sometimes you need to figure out why one test is failing. To see exactly what is happening, you can create a temporary build, don't delete it, and then manually run the test in a debug mode. In the following example, I'll assume that I'm wanting to find why test 433 is failing + + PATH="$PATH:/sbin" ./run_build.pl --test --verbose=2 --force --only-steps=configure,make,test \ + --override range_num_tests='1 1' --keepall + +The above will create a subdirectory of the format _exim.$PID_ (of the script running the build farm). In the example above, the git checkout of the exim sources was in `$HOME/buildfarm/HEAD/exim.4689/`, so we change into the test directory and manually instantiate the runtest script, specifying which test we want it to run. + + ./runtest $HOME/buildfarm/HEAD/exim.4689/src/build-Linux-i386/exim -DEBUG 433 433 + +It will print out copious debug output and you can hopefully find the problem based on that output. \ No newline at end of file