On Wed, Feb 21, 2007 at 12:13:02PM -0500, Andrew Gallatin wrote: > Luigi Rizzo [EMAIL PROTECTED] wrote: > > > Cleanup and document the implementation of firmware(9) based on > > a version that i posted earlier on the -current mailing list, > > and subsequent feedback received. > > > > At least for me, firmware(9) has been broken ever since the kld_mtx > was replaced with an sx lock last June. The problem is that there is > an exclusive lock of kld_sx taken when loading a driver, and then > firmware_get() triggers another xlock of it, leading to a deadlock: ... > > I've been using a patch > (http://people.freebsd.org/~gallatin/firmware_sx_recurse.diff) > which works around the problem. Do you think it would be > possible to commit this?
i suppose it is ok... "iwi" uses a similar technique to avoid recursive locking. I wonder how common is this practice, and whether it makes sense to define some standard macros to implement this. cheers luigi _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
