I am seeing a kernel panic in FreeBSD 8.1, which is reproduced after physically attaching and detaching a USB device several times. The kernel debugger shows that the panic happens in camisr where the cam_sim and its associated mutex are clearly destroyed. sim->refcount is 0, sim->softc is 1 (UMASS_GONE), and the sim->mtx is destroyed (mtx_lock = 6).
This looks very similar to FreeBSD PR kern/153514, which is unfortunately unresolved. http://www.freebsd.org/cgi/query-pr.cgi?pr=153514 Is it possible that the changes made to umass.c at r232358 might fix this issue? Terence Telkamp Storage Development Associate Engineer II Dell | Compellent _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"