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Date: Thu, 25 Aug 2011 15:50:43 +0200 From: Nicolas de Pesloüan <nicolas.2p.debian@...il.com> To: wwguy <wey-yi.w.guy@...el.com> CC: "dhalperi@...washington.edu" <dhalperi@...washington.edu>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, wireless <linux-wireless@...r.kernel.org> Subject: Re: iwlagn: Random "Time out reading EEPROM". Le 15/07/2011 16:28, wwguy a écrit : > the error indicate fail to read data from EEPROM, your 2nd report is > even more strange, the number at the end the error message indicate the > index of DWORD driver trying to read from EEPROM. > > "Time out reading EEPROM[2]" telling me the first 2 DWORD is reading ok > but not the 3rd read. > > How many PCI-E slots you have in your system, could it possible for you > to switch to another PCI-E slot, or pull out and re-insert the NIC. Unfortunately, not. On this laptop, the NIC is not reachable without disassembling the laptop, and I don't want to... I will double check again, but... > Also, it is possible to put the NIC into different system and see if you > are seeing the similar problem? No, for the exact same reason. Not that it still happens with 3.0.0-1 from Debian. [ 15.086244] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree: [ 15.086247] iwlagn: Copyright(c) 2003-2011 Intel Corporation [ 15.086404] iwlagn 0000:05:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 15.086412] iwlagn 0000:05:00.0: setting latency timer to 64 [ 15.086438] iwlagn 0000:05:00.0: Detected Intel(R) WiFi Link 5100 AGN, REV=0x54 [ 15.095859] iwlagn 0000:05:00.0: Time out reading EEPROM[6] [ 15.095945] iwlagn 0000:05:00.0: Unable to init EEPROM [ 15.096030] iwlagn 0000:05:00.0: PCI INT A disabled [ 15.096039] iwlagn: probe of 0000:05:00.0 failed with error -110 modprobe -r iwlagn ; modprobe iwlagn [ 231.822492] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree: [ 231.822495] iwlagn: Copyright(c) 2003-2011 Intel Corporation [ 231.822581] iwlagn 0000:05:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 231.822591] iwlagn 0000:05:00.0: setting latency timer to 64 [ 231.822621] iwlagn 0000:05:00.0: Detected Intel(R) WiFi Link 5100 AGN, REV=0x54 [ 231.843544] iwlagn 0000:05:00.0: device EEPROM VER=0x11f, CALIB=0x4 [ 231.843546] iwlagn 0000:05:00.0: Device SKU: 0Xb [ 231.844889] iwlagn 0000:05:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels [ 231.844961] iwlagn 0000:05:00.0: irq 50 for MSI/MSI-X [ 231.989424] iwlagn 0000:05:00.0: loaded firmware version 8.83.5.1 build 33692 [ 232.037456] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' The error is not easy to reproduce, but the fix is perfectly stable. A single unload/reload of iwlagn is always enough to solve the problem, when it happens. For this reason, it sounds difficult to consider this a hardware slot problem. Can't this be related to some other PCI components? 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07) 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03) 00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 03) 00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03) 00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9300M GS] (rev a1) 02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E Gigabit Ethernet Controller (rev 14) 05:00.0 Network controller: Intel Corporation WiFi Link 5100 09:03.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05) 09:03.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) 09:03.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12) I'm quite sure I can fix this problem by loading, unloading and reloading iwlagn on every startup... but I don't really consider this a fix :-/ Nicolas. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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