Comment 116 for bug 185470

Hello community,

Sorry to say, but I am having this bug in Ubuntu Lucid. The Microcode error appears after heavy load.

Similar, if not the same bug, has been reported also: http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1593 and at the end there is still a user with Ubuntu 9.10 RC having this issue.

Happens with kernel 2.6.32-19-generic-pae but also with 2.6.32-21-generic-pae-phc (low voltage tunning).

Mostly happens after heavy net loads (download a 150Mb file from another computer in the local network), after several seconds, sometimes it works sometimes hangs (too often).

I have tried to load the module with the debug parameter, as described in http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1593, which is: "modprobe iwl3945 debug=0x43fff " but got the error:
[ 1019.362270] iwl3945: Unknown parameter `debug'

So, here is my dmesg | grep iwl3945:

"[ 29.336229] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
[ 29.336232] iwl3945: Copyright(c) 2003-2009 Intel Corporation
[ 29.337551] iwl3945 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 29.337566] iwl3945 0000:0c:00.0: setting latency timer to 64
[ 29.453187] iwl3945 0000:0c:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels
[ 29.453191] iwl3945 0000:0c:00.0: Detected Intel Wireless WiFi Link 3945ABG
[ 29.453424] iwl3945 0000:0c:00.0: irq 28 for MSI/MSI-X
[ 29.873686] iwl3945 0000:0c:00.0: firmware: requesting iwlwifi-3945-2.ucode
[ 29.896601] iwl3945 0000:0c:00.0: loaded firmware version 15.32.2.9
[ 202.230482] iwl3945 0000:0c:00.0: PCI INT A disabled
[ 211.879127] iwl3945: Unknown parameter `debug'
[ 259.926254] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
[ 259.926258] iwl3945: Copyright(c) 2003-2009 Intel Corporation
[ 259.926361] iwl3945 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 259.926383] iwl3945 0000:0c:00.0: setting latency timer to 64
[ 259.983051] iwl3945 0000:0c:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels
[ 259.983055] iwl3945 0000:0c:00.0: Detected Intel Wireless WiFi Link 3945ABG
[ 259.983208] iwl3945 0000:0c:00.0: irq 28 for MSI/MSI-X
[ 259.998847] iwl3945 0000:0c:00.0: firmware: requesting iwlwifi-3945-2.ucode
[ 260.017170] iwl3945 0000:0c:00.0: loaded firmware version 15.32.2.9
[ 999.566361] iwl3945 0000:0c:00.0: PCI INT A disabled
[ 1019.362270] iwl3945: Unknown parameter `debug'
[ 1197.464932] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
[ 1197.464937] iwl3945: Copyright(c) 2003-2009 Intel Corporation
[ 1197.465036] iwl3945 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 1197.465057] iwl3945 0000:0c:00.0: setting latency timer to 64
[ 1197.522048] iwl3945 0000:0c:00.0: Tunable channels: 13 802.11bg, 23 802.11a channels
[ 1197.522053] iwl3945 0000:0c:00.0: Detected Intel Wireless WiFi Link 3945ABG
[ 1197.522204] iwl3945 0000:0c:00.0: irq 28 for MSI/MSI-X
[ 1197.538119] iwl3945 0000:0c:00.0: firmware: requesting iwlwifi-3945-2.ucode
[ 1197.541683] iwl3945 0000:0c:00.0: loaded firmware version 15.32.2.9
[ 1408.575504] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 1408.575528] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02AC ser 0x00740000
[ 1432.434784] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 1432.434809] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02A9 ser 0x00740000
[ 1529.510692] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 1529.510703] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02D5 ser 0x00740000
[ 2209.349235] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 2209.349254] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x0272 ser 0x00740000
[ 2526.996282] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 2526.996303] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x024A ser 0x00740000
[ 2656.533161] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 2656.533179] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x020C ser 0x00740000
[ 3070.869670] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 3070.869695] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02A1 ser 0x00740000
[ 4265.589709] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 4265.589727] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02E4 ser 0x00740000
[ 4430.717248] iwl3945 0000:0c:00.0: Microcode SW error detected. Restarting 0x82000008.
[ 4430.717261] iwl3945 0000:0c:00.0: Error Reply type 0x00000005 cmd REPLY_TX (0x1C) seq 0x02E1 ser 0x00740000
"