Unfortunately there aren't a useable backtrace: crash log for WebProcess (pid <unknown>): STDOUT: <empty> STDERR: <empty> fast/text/text-transform-nontext-node-crash.xhtml passes if you run only this test, but crashes if you run the whole fast/text directory.
I've done some digging, you can easily reproduce the bug with the following command: run-tests-in-xvfb.sh -2 fast/text/text-stroke-width-cairo-dos.html fast/text/text-transform-nontext-node-crash.xhtml --force It means that after r113678 fast/text/text-stroke-width-cairo-dos.html makes the next test crash.
I skipped fast/text/text-stroke-width-cairo-dos.html to make the bot happier - http://trac.webkit.org/changeset/113717 Please unskip it with the proper fix.
Committed r116550: <http://trac.webkit.org/changeset/116550>
(In reply to comment #3) > Committed r116550: <http://trac.webkit.org/changeset/116550> Seems like the bot is happy face :). Coolio!