Andrew Thompson wrote: > Hi, > > > I am looking into the reported panics with the if_aue driver and have > come across a locking problem with usb adapters that is not obvious how > to fix. > > The problem is that usbd_do_request() may sleep and most drivers are > careful to call it without any locks held. in_addmulti() will grab > in_multi_mtx before calling if_addmulti() to update the cards multicast > hash, this effectively means that the driver can not sleep in > *_setmulti but this is unavoidable with USB. > > Does anyone have any suggestions? (panic and bt below)
It was discussed in [EMAIL PROTECTED] Shortly, USB stack should be rewritten. The patch can be found at http://www.turbocat.net/~hselasky/usb4bsd/index.html -- Dixi. Sem. _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
