[Bug 100052] [BAT] [HSW] igt at gem_exec_parallel@basic fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100052

--- Comment #6 from Daniel Vetter <daniel at ffwll.ch> ---
Nothing in the merge commit, so likely an interaction between too patches. The
way to figure this out is probably with bisecting which additional patch breaks
stuff:

$ git bisect start
$ git bisect good $first_parent
$ git bisect bad $merge_commit

Then create a separate git repo, and for every sha1 that bisect wants you to
test do:

$ git reset --hard $first_parent
$ git merge $sha1_to_test

Then run your testcase, go back to the other git checkout where you do the
bisecting and report the result. That should give you you an offending commit
somewhere in the branch for the 2nd parent.

If you then do it the other way round you will find the offending patch in the
1st parent. Those two should then be the 2 patches which interact in a bad way
somehow, and probably explain the bug.

A more effective way might be to do a full git imerge on both branches, and run
the bisect over that. But that's even more fancy ...

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20170307/e464fd22/attachment.html>