iedowse 2006-01-11 02:06:09 UTC FreeBSD src repository
Modified files: sys/cam cam_xpt.c Log: When deregistering a bus, attempt to flush out all outstanding operations before returning. Point the bus at a dummy cam_sim structure so that any CCBs will complete immediately with a CAM_DEV_NOT_THERE status, and ensure that any xpt_schedule() calls on the bus's devices will immediately call the peripheral's periph_start() routine. Also repeat the async messages because devices that were part of the way through being probed may appear after the original AC_LOST_DEVICE was sent, and would otherwise never go away. These changes make it possible to deregister a bus and free the SIM at most stages during bus probing without the usual crashes in camisr(). In particular, plugging in a umass device and then unplugging it as soon as the first probe messages appeared would almost always result in a crash. Now the device just goes away with a few CAM errors and all references to the CAM bus, target and device are dropped correctly. Revision Changes Path 1.157 +111 -8 src/sys/cam/cam_xpt.c _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"