Date: Fri, 23 Jan 2009 22:29:52 +0100 From: Lars Engels <lme@FreeBSD.org> To: Maksim Yevmenkin <maksim.yevmenkin@gmail.com> Cc: current@freebsd.org, Hans Petter Selasky <hselasky@c2i.net> Subject: Re: [PATCH] for ng_ubt2 stalled transfers Message-ID: <20090123212952.GM60948@e.0x20.net> In-Reply-To: <bb4a86c70901231113v2b72423cg7aadbb7348d9bafe@mail.gmail.com> References: <bb4a86c70901231112x693f18cmbb29b966cb972992@mail.gmail.com> <bb4a86c70901231113v2b72423cg7aadbb7348d9bafe@mail.gmail.com>
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--cf0hFtnykp6aONGL Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jan 23, 2009 at 11:13:59AM -0800, Maksim Yevmenkin wrote: > On Fri, Jan 23, 2009 at 11:12 AM, Maksim Yevmenkin > <maksim.yevmenkin@gmail.com> wrote: > > Lars, > > > >> Maksim has made a lot of changes to the Bluetooth driver. Maybe he can= look > >> into it? > >> > >> This looks like a NULL-pointer access to me. > >> > >> Maksim: > >> > >> In the ubt_detach routine, make sure that: > >> > >> 0) No further commands are accepted from the Netgraph stack. > >> 1) You drain the task queue! > >> 2) You drain all USB transfers: "usb2_transfer_drain()" called unlocke= d. > >> 3) Set the "sc_node" to NULL. > > > > please try attached patch for ng_ubt2 that hopefully addresses some of > > the issues with stalled transfers. stalled transfers do not happen on > > my machine, so i can not test it. i briefly kicked the tires and made > > sure other things seems to work fine for me. >=20 > sorry, forgot to attach the patch :) >=20 > thanks, > max Thanks for the quick patch, but that did not help: ubt0: <Broadcom Corp Foxconn Bluetooth 2.0 plus EDR, class 224/1, rev 2.00/= 1.00, addr 2> on usbus2 ubt0:ubt_bulk_read_callback:981: bulk-in transfer failed: USB_ERR_STALLED ubt0:ubt_intr_read_callback:834: interrupt transfer failed: USB_ERR_STALLED I also have another usb bluetooth stick which shows this on insertion: Jan 23 22:13:00 maggie kernel: usb2_alloc_device:1401: set address 2 failed= (ignored) Jan 23 22:13:00 maggie kernel: usb2_alloc_device:1436: getting device descr= iptor at addr 2 failed! Jan 23 22:13:01 maggie kernel: ugen0.2: <Cambridge Silicon Radio> at usbus0 Jan 23 22:13:01 maggie kernel: ubt1: <Cambridge Silicon Radio Bluetooth USB= dongle, class 224/1, rev 1.10/3.73, addr 2> on usbus0 Lars --cf0hFtnykp6aONGL Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkl6NtAACgkQKc512sD3afjmhwCfZParmfRHKKE4MHR8mIwoVESH Ry4AoJXjjWDAPWbfl85aOk93kYgVZKjL =Ysgn -----END PGP SIGNATURE----- --cf0hFtnykp6aONGL--
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