On Monday 01 February 2010 10:23:34 Pawel Jakub Dawidek wrote: > On Sat, Jan 30, 2010 at 12:44:51PM +0100, Pawel Jakub Dawidek wrote: > > Maybe I'll add how I understand what's going on: > > > > GEOM calls destroy_dev() while holding the topology lock. > > > > Destroy_dev() wants to destroy device, but can't because there are > > threads that still have it open. > > > > The threads can't close it, because to close it they need the topology > > lock. > > > > The deadlock is quite obvious, IMHO. > > Guys, changing destroy_dev() to destroy_dev_sched() in geom_dev.c fixes > the problem for me (at least it makes race window so small that I can't > reproduce it). Is there anyone who isn't happy with such a change? >
Are you sure there are no races or leftover resources that can be accessed by the callbacks of the device being destroyed? --HPS _______________________________________________ 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"
