On Tue, Jan 24, 2017 at 04:50:58AM +0000, Philipp Michel wrote: > I think it is related to this bug: > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211367 > > There are reports of several people still having this issue, seemingly all > on multiprocessor machines. > > Any idea what this could be? I'm at my wits end, all I can think of now is > to run mono in a bhyve VM to get around this, which makes me a bit sad...
Looking at the backtrace from #211367, the segfault comes from mono_gchandle_free(). The default Garbage Collector (GC) beeing sgen, trying to switch to boehm may confirm that this is related to a race condition in the garbage collection? mcs has a `--gc=[sgen,boehm]` option to test this quickly, but it should be possible to tell `./configure` to disable sgen support. Sorry to not be able to provide more than this: with 4 cores, I can't remember being hit by this problem. Romain -- Romain Tartière <rom...@freebsd.org> http://people.FreeBSD.org/~romain/ pgp: 8234 9A78 E7C0 B807 0B59 80FF BA4D 1D95 5112 336F (ID: 0x5112336F) (plain text =non-HTML= PGP/GPG encrypted/signed e-mail much appreciated)
signature.asc
Description: PGP signature
