https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227285
--- Comment #7 from Jan Kokemüller <[email protected]> --- Created attachment 192515 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=192515&action=edit patch for a GC that detects cycles I've tried to modify the GC so that it detects cycles in all "in flight" sockets and only destroys sockets that are in such a cycle. With this patch the test program doesn't exit anymore. I wonder if there can be false negatives with a GC that just detects cycles. DragonFly has some interesting comments[1]. DragonFly still suffers from this race, though. It looks like Linux had the same race when they still used a mark & sweep GC instead of a cycle detecting one. Search for "rewrite AF_UNIX garbage collector". The BUGS section in the man page for send(2) looks related to this problem. This seems to be a long standing issue. [1]: https://github.com/DragonFlyBSD/DragonFlyBSD/blob/b9f81f6ad2f9ae32fb3ec268a1ea2edac10f373e/sys/kern/uipc_usrreq.c#L72 -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
