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? > [ 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. Larry _______________________________________________ b43-dev mailing list [email protected] http://lists.infradead.org/mailman/listinfo/b43-dev
