clone 673594 -1 severity -1 important retitle -1 ruby1.8: threaded code segfaults under kfreebsd-* tags 673594 + pending thanks Hi Steven, Steven Chamberlain escreveu isso aí: > Whereas the buildds experience hangs during some tests, I see segfaults > instead. This sometimes happens even before the first test has been run. > > This small Ruby testcase results in segfault 50% of the time under > ruby1.8 1.8.7.358-2, but always succeeds with ruby1.9.1 1.9.3.0-2: > > > require 'thread' > > Thread.new do > > foo = "bar" > > end > > (Measured out of 100 runs, on kfreebsd-i386 with 4-way SMP) > > Attached are outputs from ktrace for a success and from a failure; then > I've tried to diff them. There seems to be a race whereby thread0 tries > to call thr_kill on thread2, but if that happens too late thread2 will > trigger a segfault instead. Thanks for the patch. I am preparing an upload to workaround the test timeout and make the FTBFS go away ASAP. If you can prepare a patch to fix the race condition, please attach it to the new bug report which I am creating by cloning this one. -- Antonio Terceiro <terceiro@debian.org>
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