On Sun, Oct 25, 2009 at 7:17 PM, Linus Torvalds <torva...@linux-foundation.org> wrote: > > Ok, so I got myself (or rather, Patricia) a new Dell 11 inspiron laptop, > and everything seems to work, except for the wireless. It's a Broadcom > BCM4312b/g LP-PHY. > > In fact, even the wireless works at least to _some_ degree, because I saw > the wireless networks listed once (but I can't seem to recreate that now), > but: > > - I get a _lot_ of noise in dmesg: > > b43-phy0 ERROR: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, > 0x00000000, 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23) > b43-phy0: Controller restarted > > - the 'phy0' kernel thread seems to spend all its time presumably doing > that firmware reloading (looks like 20% CPU time in top) > > - the wireless doesn't seem to actually ever succeed in connecting even > the one time it saw something, and 'rmmod b43' just hangs. > > The network I'm trying to connect to is just a random 128-bit WEP thing. > But while I once got far enough to see it (I think that was with the > 4.150.10.5 firmware - I started out using the wrong one by mistake), now I > can't even see the networks, so I doubt that matters. > > Maybe it's all as simple as me just having the wrong firmware version or > something. But it's the version documented at > > http://linuxwireless.org/en/users/Drivers/b43 > > for the LP-PHY case. > > This is with current -git (v2.6.32-rc5-81-g964fe08), and lspci reports > > 08:00.0 0280: 14e4:4315 (rev 01) > Subsystem: 1028:000c > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- > ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0, Cache Line Size: 64 bytes > Interrupt: pin A routed to IRQ 17 > Region 0: Memory at f0600000 (64-bit, non-prefetchable) > [size=16K] > Capabilities: <access denied> > Kernel driver in use: b43-pci-bridge > Kernel modules: ssb > 00: e4 14 15 43 06 00 10 00 01 00 80 02 10 00 00 00 > 10: 04 00 60 f0 00 00 00 00 00 00 00 00 00 00 00 00 > 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 0c 00 > 30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 01 00 00 > > with dmesg saying > > b43-pci-bridge 0000:08:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 > b43-pci-bridge 0000:08:00.0: setting latency timer to 64 > ... > cfg80211: Calling CRDA to update world regulatory domain > ... > cfg80211: World regulatory domain updated: > (start_freq - end_freq @ bandwidth), (max_antenna_gain, > max_eirp) > (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) > (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) > (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > b43-phy0: Broadcom 4312 WLAN found (core revision 15) > ... > phy0: Selected rate control algorithm 'minstrel' > Registered led device: b43-phy0::tx > Registered led device: b43-phy0::rx > Registered led device: b43-phy0::radio > Broadcom 43xx driver loaded [ Features: PML, Firmware-ID: FW13 ] > ... > cfg80211: Calling CRDA for country: US > cfg80211: Regulatory domain changed to country: US > (start_freq - end_freq @ bandwidth), (max_antenna_gain, > max_eirp) > (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm) > (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm) > (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > (5490000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm) > ... > b43 ssb0:0: firmware: requesting b43/ucode15.fw > b43 ssb0:0: firmware: requesting b43/lp0initvals15.fw > b43 ssb0:0: firmware: requesting b43/lp0bsinitvals15.fw > b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23) > ... > b43-phy0 ERROR: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, > 0x00000000, 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23) > b43-phy0 ERROR: > b43-phy0: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, > 0x00000000, 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > Controller restarted > b43-phy0 ERROR: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, > 0x00000000, 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > > with that "b43-phy0" mess then going on forever (happily at least > ratelimited). > > I can obviously test patches etc. > > Linus >
Hello, Could you please test the tag "master-2009-08-26" from wireless-testing? That one was the first version that worked, and in that specific build, my card (exactly the same as yours) worked perfectly, leading me to suspect a regression (probably not in the b43 driver, but in something else interfering with b43). Also try apic=off & acpi=off (IIRC another DMA error victim, but with error code 0x00000800 had ACPI clobbering his DMA). Also, is there any reference to a failed channel switch in the log? Thanks, Gábor -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-) _______________________________________________ Bcm43xx-dev mailing list Bcm43xx-dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
