[Bug 571857] Re: Microcode SW error detected. Restarting 0x2000000

[Jamie Strandboge]

I too see this under heavy network load on an up to date Lucid on my
Lenovo Thinkpad x201s. This uses the same driver and is the same model
but slightly different lspci output. It works mostly ok, then will drop
the connection completely, causing network hangs. Eventually it comes
back on its own.

Excerpted dmesg:
[    4.480807] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27k
[    4.480811] iwlagn: Copyright(c) 2003-2009 Intel Corporation
[    4.480928] iwlagn 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    4.480959] iwlagn 0000:02:00.0: setting latency timer to 64
[    4.481066] iwlagn 0000:02:00.0: Detected Intel Wireless WiFi Link 6000 Series 2x2 AGN REV=0x74
[    4.509030] iwlagn 0000:02:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[    4.509096]   alloc irq_desc for 34 on node -1
[    4.509098]   alloc kstat_irqs on node -1
[    4.509119] iwlagn 0000:02:00.0: irq 34 for MSI/MSI-X

Excerpted lspci -vvnn:
02:00.0 Network controller [0280]: Intel Corporation WiFi Link 6000 Series [8086:4239] (rev 35)
	Subsystem: Intel Corporation Device [8086:1311]
	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 34
	Region 0: Memory at f2400000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlagn
	Kernel modules: iwlagn


** Summary changed:

- Microcode SW error detected. Restarting 0x2000000
+ Microcode SW error detected. Restarting 0x2000000 on Intel Wifi 6000

-- 
Microcode SW error detected. Restarting 0x2000000 on Intel Wifi 6000
https://bugs.launchpad.net/bugs/571857
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