On Fri, Oct 2, 2009 at 11:04 PM, <fre...@carolina.rr.com> wrote: > > Hi Folks -- > > I've read in the archives about DMA errors with the LP-PHY, but there didn't > seem to be any conclusion. Any guidance on what I can test to get it working? > It's reproducable on my Lenovo G530 laptop. (Yes, I know forcing PIO works > for > others, and it works for me too, but I'd like to help testing if I can). > > Any guidance on which tests would be most likely to work? AFAIK, options to > test include: > * 64bit kernel (and userland?) > * Hack b43/dma.c to force fallback to 32bit DMA (as a trial datapoint only)
Won't work - LP-PHY only supports 64bit DMA. > * Boot with Mem=2G. Currently 4G ram is installed. > * Firmware 5xx > > Or is this a HW design error in the laptop, and I should just live with > forcing PIO? > > My system details: > * Compat-wireless-2009-09-30 (and also back to 9-21) > * Fedora Rawhide 32-bit, kernel 2.6.31.1-56.fc12.i686 > * Firmware 478.104 > * Fatal DMA error soon after heavy traffic starts > Try installing a proper wireless-testing kernel (not just compat-wireless). This issue seems to specifically affect 2.6.31+compat-wireless users (probably something needs to be backported). 2.6.32-rc1+compat-wireless shoud also work. > dmesg extract: > > ssb: Sonics Silicon Backplane found on PCI device 0000:04:00.0 > b43-phy0: Broadcom 4312 WLAN found (core revision 15) > b43-phy0 debug: Found PHY: Analog 6, Type 5, Revision 1 > b43-phy0 debug: Found Radio: Manuf 0x17F, Version 0x2062, Revision 2 > 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 ] > b43 ssb0:0: firmware: requesting b43/ucode15.fw > 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/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 debug: b2062: Using crystal tab entry 19200 kHz. > b43-phy0 debug: RC calib: Failed to switch to channel 7, error = -5 > b43-phy0 debug: Chip initialized > b43-phy0 debug: 64-bit DMA initialized > b43-phy0 debug: QoS enabled > b43-phy0 debug: Wireless interface started > b43-phy0 debug: Adding Interface type 2 > ADDRCONF(NETDEV_UP): wlan0: link is not ready > wlan0: deauthenticating from 00:0c:41:e2:f9:81 by local choice (reason=3) > wlan0: direct probe to AP 00:0c:41:e2:f9:81 (try 1) > wlan0: direct probe responded > wlan0: authenticate with AP 00:0c:41:e2:f9:81 (try 1) > wlan0: authenticated > wlan0: associate with AP 00:0c:41:e2:f9:81 (try 1) > wlan0: RX AssocResp from 00:0c:41:e2:f9:81 (capab=0x411 status=0 aid=2) > wlan0: associated > ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready > b43-phy0 debug: Using hardware based encryption for keyidx: 0, mac: > ff:ff:ff:ff:ff:ff > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > NOHZ: local_softirq_pending 08 > wlan0: no IPv6 routers present > CE: hpet increasing min_delta_ns to 15000 nsec > b43-phy0 ERROR: Fatal DMA error: 0x00000000, 0x00000400, 0x00000000, > 0x00000000, > 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > b43-phy0 debug: Wireless interface stopped > b43-phy0 debug: DMA-64 rx_ring: Used slots 8/64, Failed frames 0/0 = 0.0%, > Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_BK: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_BE: Used slots 256/256, Failed frames > 0/7742 = > 0.0%, Average tries 1.37 > b43-phy0 debug: DMA-64 tx_ring_AC_VI: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_VO: Used slots 2/256, Failed frames 0/555 = > 0.0%, Average tries 1.01 > b43-phy0 debug: DMA-64 tx_ring_mcast: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23) > b43-phy0 debug: b2062: Using crystal tab entry 19200 kHz. > b43-phy0 debug: Chip initialized > b43-phy0 debug: 64-bit DMA initialized > b43-phy0 debug: QoS enabled > b43-phy0 debug: Wireless interface started > b43-phy0: Controller restarted > b43-phy0 ERROR: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, > 0x00000000, > 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > b43-phy0 debug: Wireless interface stopped > b43-phy0 debug: DMA-64 rx_ring: Used slots 0/64, Failed frames 0/0 = 0.0%, > Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_BK: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_BE: Used slots 1/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_VI: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_VO: Used slots 2/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_mcast: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23) > b43-phy0 debug: b2062: Using crystal tab entry 19200 kHz. > b43-phy0 debug: Chip initialized > b43-phy0 debug: 64-bit DMA initialized > b43-phy0 debug: QoS enabled > b43-phy0 debug: Wireless interface started > b43-phy0: Controller restarted > b43-phy0 ERROR: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, > 0x00000000, > 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > b43-phy0 debug: Wireless interface stopped > b43-phy0 debug: DMA-64 rx_ring: Used slots 0/64, Failed frames 0/0 = 0.0%, > Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_BK: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_BE: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_VI: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_AC_VO: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0 debug: DMA-64 tx_ring_mcast: Used slots 0/256, Failed frames 0/0 = > 0.0%, Average tries 0.00 > b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23) > b43-phy0 debug: b2062: Using crystal tab entry 19200 kHz. > b43-phy0 debug: Chip initialized > b43-phy0 debug: 64-bit DMA initialized > b43-phy0 debug: QoS enabled > > etc etc. > > regards, .............. Charlie > > _______________________________________________ > Bcm43xx-dev mailing list > Bcm43xx-dev@lists.berlios.de > https://lists.berlios.de/mailman/listinfo/bcm43xx-dev > -- 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
