Hello, while trying to get my wireless to work (a Ralink RT2560, as sold in a Fujitsu-Siemens Amilo A 1630), I've been hitting the following Panic twice: BUG: unable to handle kernel NULL pointer derference at virtual address 00000218 [...] EIP is at ieee80211_ibss_add_sta+0xae/0x130 [...] EIP: [<c05773fe>] ieee_80211_ibss_add_sta+0xae/0x130 SS:ESP 0068:f641dc38 Kernel panic - not syncing: Fatal exception in interrupt The bug seems to be triggered as soon as the stack tries to join my router's ad-hoc; it happen either directly when doing "ip l s wlan0 up" as well as when doing "iwconfig wlan0 essid equinox" (when it did not immediately find the network). Kernel version is 2.6.21-ge42d23f4 (git checkout from git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-dev, about a few hours old.) Full information set available at http://celeste.diac24.net/rtpanic/ (includes pictures of the panics, in case I have a typo somewhere) Requests for more information / patches welcome, but expect delayed response. More information attached. Greetings, David Lamparter
BUG: unable to handle kernel NULL pointer derference at virtual address 00000218
printing eip:
c05773fe
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: rt2500pci rt2x00pci rt2x00lib radeon drm
CPU: 0
EIP: 0060:[<c05773fe>] Not tainted VLI
EFLAGS: 0010286 (2.6.21-ge42d23f3 #8)
EIP is at ieee80211_ibss_add_sta+0xae/0x130
eax: f76292c0 ebx: f78c381c ecx: 00000000 edx: 00000102
esi: f6a091a0 edi: f76292c0 ebp: f6bb8000 esp: f641dc38
ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
Process ip (pid: 1621, ti=f641c000 task=f78f8c30 task.ti=f641c000)
Stack: 00000020 f782f800 00000000 00000001 000000e3 0000000f 000000ae 000000eb
f6bb8000 f6a091a0 c193e8c0 f78c3822 f6bb83a0 00000002 f78c3812 c0569b8a
f78c381c df82f5ea f7e90458 f7cfea10 00000001 f7cfea28 00000018 00000000
Call Trace:
[<c0569b8a>] __ieee80211_rx+0xa5a/0xc10
[<c0180b5a>] dentry_iput+0xda/0x120
[<c056c34f>] ieee80211_tasklet_handler+0xaf/0xe0
[<c02f3c9f>] _atomic_dec_and_loc+0x2f/0x50
[<c0121c43>] tasklet_action+0x33/0x70
[<c0121b72>] __do_softirq+0x52/0xa0
[<c0121c05>] do_softirq+0x45/0x50
[<c0122023>] local_bh_enable+0x53/0xa0
[<c047f74b>] dev_mc_upload+0x3b/0x50
[<c047d16c>] dev_open+0x5c/0x80
[<c056d017>] ieee80211_open+0x317/0x420
[<c0121b86>] __do_softirq+0x66/0xa0
[<c047d149>] dev_open+0x39/0x80
[<c047b8cc>] dev_change_flags+0x5c/0x140
[<c04c3613>] devinet_ioctl+0x563/0x6e0
[<c0472310>] sock_ioctl+0x0/0x1c0
[<c04723bf>] sock_ioctl+0xaf/0x1c0
[<c0472310>] sock_ioctl+0x0/0x1c0
[<c017b81b>] do_ioctl+0x2b/0x90
[<c017b8dc>] vfs_ioctl+0x5c/0x2b0
[<c017bb6d>] sys_ioctl+0x3d/0x70
[<c010406e>] sysenter_past_esp+0x5f/0x85
=======================
Code: 00 00 00 c7 04 24 5c 09 6d c0 89 44 24 04 e8 fa 5f ba ff 89 d9 89 ea 89 f0 c7 04 24 20 00 00 00 e8 48 d1 ff ff 85 c0 89 c7 74 95 <a1> 18 02 00 00 8b 97 8c 00 00 00 89 f1 89 47 64 8b 87 88 00 00
EIP: [<c05773fe>] ieee_80211_ibss_add_sta+0xae/0x130 SS:ESP 0068:f641dc38
Kernel panic - not syncing: Fatal exception in interrupt
Linux version 2.6.21-ge42d23f4 (root@neptune) (gcc version 4.1.2) #8 PREEMPT Tue May 15 14:08:04 CEST 2007
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 755 Host (rev 01) Subsystem: Silicon Integrated Systems [SiS] 755 Host Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- Latency: 32 Region 0: Memory at e0000000 (32-bit, non-prefetchable) [size=128M] Capabilities: [a0] AGP version 3.0 Status: RQ=32 Iso- ArqSz=2 Cal=3 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3+ Rate=x4,x8 Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x8 Capabilities: [d0] HyperTransport: Slave or Primary Interface !!! Possibly incomplete decoding Command: BaseUnitID=0 UnitCnt=9 MastHost- DefDir- Link Control 0: CFlE- CST- CFE- <LkFail- Init+ EOC+ TXO- <CRCErr=0 Link Config 0: MLWI=16bit MLWO=16bit LWI=16bit LWO=16bit Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0 Link Config 1: MLWI=N/C MLWO=N/C LWI=N/C LWO=N/C Revision ID: 1.02 Capabilities: [f0] HyperTransport: Interrupt Discovery and Configuration 00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202 (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fea00000-feafffff Prefetchable memory behind bridge: ee900000-fe8fffff Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B- 00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS963 [MuTIOL Media IO] (rev 25) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin B routed to IRQ 0 Region 4: I/O ports at 0c00 [size=32] 00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (prog-if 80 [Master]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 128 Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [disabled] [size=8] Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [disabled] [size=1] Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [disabled] [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [disabled] [size=1] Region 4: I/O ports at ffa0 [size=16] 00:02.6 Modem: Silicon Integrated Systems [SiS] AC'97 Modem Controller (rev a0) (prog-if 00 [Generic]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (13000ns min, 2750ns max) Interrupt: pin C routed to IRQ 22 Region 0: I/O ports at e400 [size=256] Region 1: I/O ports at e000 [size=128] Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (13000ns min, 2750ns max) Interrupt: pin C routed to IRQ 22 Region 0: I/O ports at e800 [size=256] Region 1: I/O ports at ec00 [size=128] Capabilities: [48] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f) (prog-if 10 [OHCI]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (20000ns max) Interrupt: pin A routed to IRQ 20 Region 0: Memory at febfd000 (32-bit, non-prefetchable) [size=4K] 00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 0f) (prog-if 10 [OHCI]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (20000ns max) Interrupt: pin B routed to IRQ 21 Region 0: Memory at febfe000 (32-bit, non-prefetchable) [size=4K] 00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller (prog-if 20 [EHCI]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (20000ns max) Interrupt: pin D routed to IRQ 19 Region 0: Memory at febff000 (32-bit, non-prefetchable) [size=4K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 91) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (13000ns min, 2750ns max) Interrupt: pin A routed to IRQ 18 Region 0: I/O ports at d800 [size=256] Region 1: Memory at febfc000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febc0000 [disabled] [size=128K] Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:06.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) (prog-if 10 [OHCI]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (500ns min, 1000ns max), Cache Line Size 10 Interrupt: pin A routed to IRQ 5 Region 0: Memory at febfb800 (32-bit, non-prefetchable) [size=2K] Region 1: Memory at febf4000 (32-bit, non-prefetchable) [size=16K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:09.0 CardBus bridge: O2 Micro, Inc. OZ711M1/MC1 4-in-1 MemoryCardBus Controller (rev 20) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 168, Cache Line Size 10 Interrupt: pin A routed to IRQ 16 Region 0: Memory at 60000000 (32-bit, non-prefetchable) [size=4K] Bus: primary=00, secondary=02, subordinate=05, sec-latency=176 Memory window 0: 50000000-53fff000 (prefetchable) Memory window 1: 54000000-57fff000 I/O window 0: 00001000-000010ff I/O window 1: 00001400-000014ff BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+ 16-bit legacy interface ports at 0001 00:09.1 CardBus bridge: O2 Micro, Inc. OZ711M1/MC1 4-in-1 MemoryCardBus Controller (rev 20) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 168, Cache Line Size 10 Interrupt: pin A routed to IRQ 16 Region 0: Memory at 60001000 (32-bit, non-prefetchable) [size=4K] Bus: primary=00, secondary=06, subordinate=09, sec-latency=176 Memory window 0: 58000000-5bfff000 (prefetchable) Memory window 1: 5c000000-5ffff000 I/O window 0: 00001800-000018ff I/O window 1: 00001c00-00001cff BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+ 16-bit legacy interface ports at 0001 00:09.2 System peripheral: O2 Micro, Inc. OZ711Mx 4-in-1 MemoryCardBus Accelerator Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: Memory at febfa000 (32-bit, non-prefetchable) [size=4K] Capabilities: [a0] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:0b.0 Network controller: RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01) Subsystem: Micro-Star International Co., Ltd. Unknown device 6833 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64, Cache Line Size 10 Interrupt: pin A routed to IRQ 18 Region 0: Memory at febf8000 (32-bit, non-prefetchable) [size=8K] Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Capabilities: [80] HyperTransport: Host or Secondary Interface !!! Possibly incomplete decoding Command: WarmRst+ DblEnd- Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 Link Config: MLWI=16bit MLWO=16bit LWI=16bit LWO=16bit Revision ID: 1.02 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- 01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10] (prog-if 00 [VGA]) Subsystem: Fujitsu Siemens Computer GmbH Unknown device 105f Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (2000ns min), Cache Line Size 10 Interrupt: pin A routed to IRQ 17 Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M] Region 1: I/O ports at c800 [size=256] Region 2: Memory at feaf0000 (32-bit, non-prefetchable) [size=64K] Expansion ROM at feac0000 [disabled] [size=128K] Capabilities: [58] AGP version 3.0 Status: RQ=256 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3+ Rate=x4,x8 Command: RQ=32 ArqSz=2 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x8 Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Attachment:
proc_config.gz
Description: config.gz
CONFIG_CFG80211=y CONFIG_NL80211=y CONFIG_MAC80211=y CONFIG_MAC80211_LEDS=y # CONFIG_MAC80211_DEBUG is not set # CONFIG_IEEE80211 is not set # CONFIG_WLAN_PRE80211 is not set CONFIG_WLAN_80211=y # CONFIG_BCM43XX_MAC80211 is not set CONFIG_RT2X00=m CONFIG_RT2X00_LIB=m CONFIG_RT2X00_LIB_PCI=m # CONFIG_RT2400PCI is not set CONFIG_RT2500PCI=m # CONFIG_RT2500USB is not set # CONFIG_RT2X00_DEBUG is not set # CONFIG_ZD1211RW_MAC80211 is not set
