On Mon, Jan 12, 2009 at 05:19:56PM +0100, Alexej Sokolov wrote: > 2009/1/12 Mateusz Guzik <mjgu...@gmail.com> > > Mutexes have owners. It panics on loading because processes cannot > > return to userland with locks held. > > i am not sure about it. Some time ago i implemented a charecter device with > two syscalls: write, read. "write" lock the mutex and "read" unlock it. The > user space programm opens device, then mekes "write" (mutex will held in > kernel), goes back to user space, then makes "read" (mutex will unlocked in > kernel) and it all run without panic. If needed i can post the source code. >
Do you have kernel compiled with WITNESS? At least on -CURRENT the kernel panicked like this (while loading your module): System call kldload returning with 1 locks held -- Mateusz Guzik <mjguzik at gmail.com> _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
