On Thu, 10 Feb 2011 11:41:57 -0600, Larry Finger <[email protected]> wrote :
> On 02/10/2011 11:16 AM, Anisse Astier wrote: > > [ 103.627184] wlan0: associated > > [ 103.677583] b43-phy0 debug: Using hardware based encryption for keyidx: > > 0, mac: 68:7f:74:16:57:c9 > > [ 148.586756] b43-phy0 ERROR: Fatal DMA error: 0x00000800, 0x00000000, > > 0x00000000, 0x00000000, 0x00000000, 0x00000000 > > [ 148.586788] b43-phy0 ERROR: This device does not support DMA on your > > system. It will now be switched to PIO. > > [ 148.586791] b43-phy0: Controller RESET (DMA error) ... > > [ 148.586794] b43-phy0 ERROR: Fatal DMA error: 0x00000800, 0x00000000, > > 0x00000000, 0x00000000, 0x00000000, 0x00000000 > > [ 148.586797] b43-phy0 ERROR: This device does not support DMA on your > > system. It will now be switched to PIO. > > [ 148.586800] b43-phy0: Controller RESET (DMA error) ... > > [ 148.586882] b43-phy0 debug: Wireless interface stopped > > On some boxes, 14e4:4315 devices fail in b43 with with this DMA error. We > don't > know why, nor do we know how to fix it. Unfortunately, none of the developers > have such a system, which makes the debugging harder. > > I don't think the problem is with the Dell 1397, but with the motherboard on > the > laptop. In fact, most of the problems have been with netbook computers with a > Phoenix BIOS. Does your system fit that description? It's indeed a Phoenix Bios. Machine model is Dell Vostro 1520, but definitely not a netbook. > > > [ 297.703041] b43-phy0 ERROR: MAC suspend failed > > [ 297.854043] b43-phy0 ERROR: MAC suspend failed > > [ 298.003042] b43-phy0 ERROR: MAC suspend failed > > Are the MAC suspend failures in PIO mode a regression that recently appeared? > I > cannot think of any changes that should have affected the LP PHY devices, but > anything is possible. > > The only workaround I can suggest is to use wl. I hate to recommend > closed-source software, but there may be no alternative. Yep, I already packaged that driver, and planned to use it. I was in the mode give-every-time-I-have-left to b43 developers to test patches and try to find a solution. Anisse _______________________________________________ b43-dev mailing list [email protected] http://lists.infradead.org/mailman/listinfo/b43-dev
