I'm encountering the same issue.
I'm using a Thinkpad T43 with Ubuntu 8.10.
It hapens once a week or so.
cpu usage will drop after a "modprobe -r ipw2200; modprobe ipw2200"
$ uname -a
Linux thinkpad 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686
GNU/Linux
$ cat /proc/version_signature
Ubuntu 2.6.27-11.27-generic
$ lspci -vvnn
00:00.0 Host bridge [0600]: Intel Corporation Mobile 915GM/PM/GMS/910GML
Express Processor to DRAM Controller [8086:2590] (rev 03)
Subsystem: IBM Device [1014:0575]
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
Capabilities: <access denied>
Kernel modules: intel-agp
00:01.0 PCI bridge [0604]: Intel Corporation Mobile 915GM/PM Express PCI
Express Root Port [8086:2591] (rev 03)
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: 32 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: b0100000-b01fffff
Prefetchable memory behind bridge: c0000000-c7ffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.0 PCI bridge [0604]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) PCI Express Port 1 [8086:2660] (rev 03)
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: 32 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: b0200000-b02fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1c.2 PCI bridge [0604]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) PCI Express Port 3 [8086:2664] (rev 03)
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: 32 bytes
Bus: primary=00, secondary=03, subordinate=0a, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: b2000000-b3ffffff
Prefetchable memory behind bridge: 00000000c8000000-00000000c80fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport-driver
Kernel modules: shpchp
00:1d.0 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #1 [8086:2658] (rev 03)
Subsystem: IBM Device [1014:0565]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at 1800 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.1 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #2 [8086:2659] (rev 03)
Subsystem: IBM Device [1014:0565]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at 1820 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.2 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #3 [8086:265a] (rev 03)
Subsystem: IBM Device [1014:0565]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at 1840 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.3 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #4 [8086:265b] (rev 03)
Subsystem: IBM Device [1014:0565]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 19
Region 4: I/O ports at 1860 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:1d.7 USB Controller [0c03]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB2 EHCI Controller [8086:265c] (rev 03) (prog-if 20)
Subsystem: IBM Device [1014:0566]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 19
Region 0: Memory at b0000000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge
[8086:2448] (rev d3) (prog-if 01)
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
Bus: primary=00, secondary=0b, subordinate=0e, sec-latency=64
I/O behind bridge: 00005000-00008fff
Memory behind bridge: b4000000-bfffffff
Prefetchable memory behind bridge: 00000000d0000000-00000000d7ffffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
00:1e.2 Multimedia audio controller [0401]: Intel Corporation
82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller [8086:266e] (rev 03)
Subsystem: IBM Device [1014:0567]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 22
Region 0: I/O ports at 1c00 [size=256]
Region 1: I/O ports at 1880 [size=64]
Region 2: Memory at b0000800 (32-bit, non-prefetchable) [size=512]
Region 3: Memory at b0000400 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: Intel ICH
Kernel modules: snd-intel8x0
00:1e.3 Modem [0703]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
AC'97 Modem Controller [8086:266d] (rev 03)
Subsystem: IBM Device [1014:0574]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 23
Region 0: I/O ports at 2400 [size=256]
Region 1: I/O ports at 2000 [size=128]
Capabilities: <access denied>
Kernel modules: snd-intel8x0m
00:1f.0 ISA bridge [0601]: Intel Corporation 82801FBM (ICH6M) LPC Interface
Bridge [8086:2641] (rev 03)
Subsystem: IBM Device [1014:0568]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Kernel modules: intel-rng, iTCO_wdt
00:1f.2 IDE interface [0101]: Intel Corporation 82801FBM (ICH6M) SATA
Controller [8086:2653] (rev 03) (prog-if 80 [Master])
Subsystem: IBM Device [1014:056a]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at 18c0 [size=16]
Capabilities: <access denied>
Kernel driver in use: ata_piix
Kernel modules: ahci, ata_piix
00:1f.3 SMBus [0c05]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
SMBus Controller [8086:266a] (rev 03)
Subsystem: IBM Device [1014:056b]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 11
Region 4: I/O ports at 18e0 [size=32]
Kernel modules: i2c-i801
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M22 [Mobility
Radeon X300] [1002:5460]
Subsystem: IBM Device [1014:056e]
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: 32 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at c0000000 (32-bit, prefetchable) [size=128M]
Region 1: I/O ports at 3000 [size=256]
Region 2: Memory at b0100000 (32-bit, non-prefetchable) [size=64K]
[virtual] Expansion ROM at b0120000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel modules: radeonfb
02:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM5751M
Gigabit Ethernet PCI Express [14e4:167d] (rev 11)
Subsystem: IBM Device [1014:0577]
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: 32 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at b0200000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at <ignored> [disabled]
Capabilities: <access denied>
Kernel driver in use: tg3
Kernel modules: tg3
0b:00.0 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev 8d)
Subsystem: IBM Device [1014:056c]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 168
Interrupt: pin A routed to IRQ 16
Region 0: Memory at b4000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=0b, secondary=0c, subordinate=0d, sec-latency=176
Memory window 0: d0000000-d3fff000 (prefetchable)
Memory window 1: b8000000-bbfff000
I/O window 0: 00005000-000050ff
I/O window 1: 00005400-000054ff
BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+
16-bit legacy interface ports at 0001
Kernel driver in use: yenta_cardbus
Kernel modules: yenta_socket
0b:00.1 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro
Host Adapter [1180:0822] (rev 13)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin B routed to IRQ 17
Region 0: Memory at b4001000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: sdhci-pci
Kernel modules: sdhci-pci
0b:02.0 Network controller [0280]: Intel Corporation PRO/Wireless 2915ABG
[Calexico2] Network Connection [8086:4224] (rev 05)
Subsystem: Intel Corporation Device [8086:1011]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (750ns min, 6000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 21
Region 0: Memory at b4002000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ipw2200
Kernel modules: ipw2200
$ grep ipw /var/log/messages
Feb 19 07:46:45 thinkpad kernel: [21119.641660] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 19 07:46:45 thinkpad kernel: [21120.992060] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 19 22:18:26 thinkpad kernel: [32565.101555] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 19 22:18:26 thinkpad kernel: [32566.452735] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 21 14:10:26 thinkpad kernel: [34736.873576] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 21 14:10:26 thinkpad kernel: [34738.228740] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 23 07:12:58 thinkpad kernel: [62132.013559] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 23 07:12:58 thinkpad kernel: [62133.364751] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 23 20:03:20 thinkpad kernel: [63654.930600] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 23 20:03:20 thinkpad kernel: [63656.280742] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 24 07:37:33 thinkpad kernel: [78709.929579] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 24 07:37:33 thinkpad kernel: [78711.280737] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 24 07:53:27 thinkpad kernel: [79667.950179] ipw2200: Firmware error
detected. Restarting.
Feb 24 07:53:27 thinkpad kernel: [79668.016054] ipw2200 0000:0b:02.0: PCI INT A
disabled
Feb 24 07:53:34 thinkpad kernel: [79674.685231] ipw2200: Intel(R) PRO/Wireless
2200/2915 Network Driver, 1.2.2kmprq
Feb 24 07:53:34 thinkpad kernel: [79674.685236] ipw2200: Copyright(c) 2003-2006
Intel Corporation
Feb 24 07:53:34 thinkpad kernel: [79674.686197] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 24 07:53:34 thinkpad kernel: [79674.687649] ipw2200: Detected Intel
PRO/Wireless 2915ABG Network Connection
Feb 24 07:53:34 thinkpad kernel: [79674.687860] firmware: requesting
ipw2200-bss.fw
Feb 24 07:53:34 thinkpad kernel: [79674.879024] ipw2200: Detected geography ZZE
(13 802.11bg channels, 19 802.11a channels)
Feb 24 07:59:33 thinkpad kernel: [ 30.612307] ipw2200: Intel(R) PRO/Wireless
2200/2915 Network Driver, 1.2.2kmprq
Feb 24 07:59:33 thinkpad kernel: [ 30.612315] ipw2200: Copyright(c) 2003-2006
Intel Corporation
Feb 24 07:59:33 thinkpad kernel: [ 30.732602] ipw2200 0000:0b:02.0: PCI INT A
-> GSI 21 (level, low) -> IRQ 21
Feb 24 07:59:33 thinkpad kernel: [ 30.750095] ipw2200: Detected Intel
PRO/Wireless 2915ABG Network Connection
Feb 24 07:59:33 thinkpad kernel: [ 30.750188] firmware: requesting
ipw2200-bss.fw
Feb 24 07:59:33 thinkpad kernel: [ 37.663115] ipw2200: Detected geography ZZE
(13 802.11bg channels, 19 802.11a channels)
** Changed in: linux (Ubuntu)
Sourcepackagename: linux-source-2.6.17 => linux
Status: Won't Fix => New
--
ipw2200 sometimes uses 100% CPU on resume
https://bugs.launchpad.net/bugs/67786
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