-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Thomas Gleixner wrote: > Can you put the binaries somewhere for download please ?
I was waiting until I could test the current patches. DaveJ built a kernel based on -rc4-git3 which I tested. The results are the same. I've put a statically linked x86-64 binary at http://people.redhat.com/drepper/tst-robustpi7.bz2 Running it produces a backtrace with the 2.6.21-1.3218.fc8 kernel and the machine dies. The test case creates a robust, PI mutex. Five threads then run into a condvar for this mutex. The main threads wakes them all with a broadcast which causes the new requeue_pi code to be used. The woken threads then (in pthread_cond_wait) lock the mutex and then kill themselves while holding the mutex. This is supposed to have the result that all but the first thread get EDEADOWNER errors. Note: the condvar futex is not a PI futex. It cannot be, the semantics is different. This is no locking futex. The kernel will have to deal with this. The requeue operation is meaningless if this is not done since it's only use is for this situation. - -- ➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) iD8DBQFGauro2ijCOnn/RHQRAluEAKC2rG4DSGjwNkYILzQsMtp7jgcN0QCgh4od bN8HUrwjg1keVo8DjKTQL6o= =twSF -----END PGP SIGNATURE----- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
