El 12 de febrer de 2012 12:42, Niko Tyni <nt...@debian.org> ha escrit: > [crossposted to the Debian GNU/kFreeBSD development list debian-bsd > and the Perl 5 development list perl5-porters ]
Thanks for bringing this up. >> This is also a complete non-issue in practice these days, LinuxThreads >> was a Linux 2.4 thread implementation that nobody maintains >> anymore[2], all modern Linux distros use NPTL threads which don't >> suffer from this discrepancy. This is not correct. LinuxThreads is only obsolete on GNU/Linux, but it is maintained and used on GNU/kFreeBSD because, contrary to what its name would indicate, it's a reasonably portable pthread library with few kernel-specific dependencies. However... > Under POSIX threads the getpid() and getppid() functions return the > same values across multiple threads, i.e. threads don't have their own > PID's. This is not the case under the obsolete LinuxThreads where each > thread has a different PID, so getpid() and getppid() will return > different values across threads. The version of LinuxThreads used on GNU/kFreeBSD has been patched to use kFreeBSD (kernel of FreeBSD) thread primitives, and thus future releases of Debian GNU/kFreeBSD will no longer be affected by this problem. Debian "Squeeze" release *IS* affected, however. It'd be better if you could wait at least until there's a new release before breaking compatibility with Squeeze users. HTH -- Robert Millan -- To UNSUBSCRIBE, email to debian-bsd-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAOfDtXPsjcMzpVbZ+Jv+bG9FnDz5Jqp3LSwK-=ntww5b2ta...@mail.gmail.com
