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Date: Wed, 23 Feb 2011 09:22:16 +0800 From: Xiong Huang <Xiong.Huang@...eros.com> To: Ben Hutchings <ben@...adent.org.uk>, Jay Cliburn <jcliburn@...il.com>, Chris Snook <chris.snook@...il.com>, Jie Yang <Jie.Yang@...eros.com> CC: "614622@...s.debian.org" <614622@...s.debian.org>, netdev <netdev@...r.kernel.org>, Daniel Kahn Gillmor <dkg@...thhorseman.net> Subject: RE: Bug#614622: linux-image-2.6.37-1-686: atl2 NIC claims NO CARRIER after suspend/resume; rmmod+insmod fixes the problem after the onboard NIC claims NO Carrier after resuming from suspend-to-RAM, how about it if unplug then re-plug the cable ? best regards Xiong -----Original Message----- From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org] On Behalf Of Ben Hutchings Sent: Wednesday, February 23, 2011 9:14 To: Jay Cliburn; Chris Snook; Jie Yang Cc: 614622@...s.debian.org; netdev; Daniel Kahn Gillmor Subject: Re: Bug#614622: linux-image-2.6.37-1-686: atl2 NIC claims NO CARRIER after suspend/resume; rmmod+insmod fixes the problem This bug report was made against Debian's package of Linux 2.6.37: On Tue, 2011-02-22 at 13:08 -0500, Daniel Kahn Gillmor wrote: > Package: linux-2.6 > Version: 2.6.37-1 > Severity: normal > > I recently switched from 2.6.37-trunk-686 to 2.6.37-1-686. > > after the switch, i find that sometimes my atl2.ko-driven onboard NIC > persistently claims NO CARRIER after resuming from suspend-to-RAM, > even when plugged into a legitimate ethernet port. This is not > entirely reliable, but maybe 50% of the time. > > if i remove and re-load atl2.ko, the interface can properly detect the > ethernet. > > i'm happy to help debug this further if there is any information you > want me to gather on this hardware. Please let me know. I don't see any changes to this driver between 2.6.37-rc4 (the first version we built as '2.6.37-trunk-686') and 2.6.37, so I think Daniel just had good luck with the earlier versions. > ** Kernel log: [...] > [67880.276036] PM: suspend of devices complete after 147.583 msecs > [67880.292274] PM: late suspend of devices complete after 16.227 msecs > [67880.292426] ACPI: Preparing to enter system sleep state S3 > [67880.316648] PM: Saving platform NVS memory [67880.357927] Disabling > non-boot CPUs ... > [67880.357927] Back to C! > [67880.357927] PM: Restoring platform NVS memory [67880.357927] Force > enabled HPET at resume [67880.357927] ACPI: Waking up from system > sleep state S3 [67880.400865] HDA Intel 0000:00:1b.0: restoring config > space at offset 0x1 (was 0x100006, writing 0x100002) [67880.400904] > pci 0000:00:1c.0: restoring config space at offset 0x9 (was 0x1fff1, > writing 0x3fc13fb1) [67880.400913] pci 0000:00:1c.0: restoring config > space at offset 0x8 (was 0xfff0, writing 0x3fa03f90) [67880.400923] > pci 0000:00:1c.0: restoring config space at offset 0x7 (was 0xf0, > writing 0x1010) [67880.400937] pci 0000:00:1c.0: restoring config > space at offset 0x1 (was 0x100104, writing 0x100107) [67880.400976] > pci 0000:00:1c.1: restoring config space at offset 0x9 (was 0x1fff1, > writing 0x3fe13fd1) [67880.400987] pci 0000:00:1c.1: restoring config > space at offset 0x7 (was 0xf0, writing 0x2020) [67880.401001] pci > 0000:00:1c.1: restoring config space at offset 0x1 (was 0x100106, > writing 0x100107) [67880.401042] pci 0000:00:1c.2: restoring config > space at offset 0x7 (was 0xf0, writing 0x3030) [67880.401056] pci > 0000:00:1c.2: restoring config space at offset 0x1 (was 0x100106, > writing 0x100107) [67880.401099] uhci_hcd 0000:00:1d.0: restoring > config space at offset 0x1 (was 0x2800005, writing 0x2800001) > [67880.401132] uhci_hcd 0000:00:1d.1: restoring config space at offset > 0x1 (was 0x2800005, writing 0x2800001) [67880.401165] uhci_hcd > 0000:00:1d.2: restoring config space at offset 0x1 (was 0x2800005, > writing 0x2800001) [67880.401197] uhci_hcd 0000:00:1d.3: restoring > config space at offset 0x1 (was 0x2800005, writing 0x2800001) > [67880.401239] ehci_hcd 0000:00:1d.7: restoring config space at offset > 0x1 (was 0x2900006, writing 0x2900002) [67880.401265] pci > 0000:00:1e.0: restoring config space at offset 0xf (was 0x60000, > writing 0x600ff) [67880.401538] PM: early resume of devices complete > after 0.795 msecs [67880.406036] HDA Intel 0000:00:1b.0: PCI INT A -> > GSI 16 (level, low) -> IRQ 16 [67880.406048] HDA Intel 0000:00:1b.0: > setting latency timer to 64 [67880.406093] HDA Intel 0000:00:1b.0: irq > 40 for MSI/MSI-X [67880.406136] pci 0000:00:1c.0: PCI INT A -> GSI 16 > (level, low) -> IRQ 16 [67880.406143] pci 0000:00:1c.0: setting > latency timer to 64 [67880.406156] pci 0000:00:1c.1: PCI INT B -> GSI > 17 (level, low) -> IRQ 17 [67880.406163] pci 0000:00:1c.1: setting > latency timer to 64 [67880.406176] pci 0000:00:1c.2: PCI INT C -> GSI > 18 (level, low) -> IRQ 18 [67880.406183] pci 0000:00:1c.2: setting > latency timer to 64 [67880.406198] uhci_hcd 0000:00:1d.0: PCI INT A -> > GSI 23 (level, low) -> IRQ 23 [67880.406208] uhci_hcd 0000:00:1d.0: > setting latency timer to 64 [67880.406234] usb usb2: root hub lost > power or was reset [67880.406253] uhci_hcd 0000:00:1d.1: PCI INT B -> > GSI 19 (level, low) -> IRQ 19 [67880.406262] uhci_hcd 0000:00:1d.1: > setting latency timer to 64 [67880.406287] usb usb3: root hub lost > power or was reset [67880.406303] uhci_hcd 0000:00:1d.2: PCI INT C -> > GSI 18 (level, low) -> IRQ 18 [67880.406313] uhci_hcd 0000:00:1d.2: > setting latency timer to 64 [67880.406337] usb usb4: root hub lost > power or was reset [67880.406354] uhci_hcd 0000:00:1d.3: PCI INT D -> > GSI 16 (level, low) -> IRQ 16 [67880.406363] uhci_hcd 0000:00:1d.3: > setting latency timer to 64 [67880.406387] usb usb5: root hub lost > power or was reset [67880.406405] ehci_hcd 0000:00:1d.7: PCI INT A -> > GSI 23 (level, low) -> IRQ 23 [67880.406415] ehci_hcd 0000:00:1d.7: > setting latency timer to 64 [67880.406486] pci 0000:00:1e.0: setting > latency timer to 64 [67880.406505] ata_piix 0000:00:1f.2: PCI INT B -> > GSI 19 (level, low) -> IRQ 19 [67880.406513] ata_piix 0000:00:1f.2: > setting latency timer to 64 [67880.406543] atl2 0000:03:00.0: PCI INT > A -> GSI 17 (level, low) -> IRQ 17 [67880.406551] atl2 0000:03:00.0: > setting latency timer to 64 [67880.411177] i915 0000:00:02.0: PCI INT > A -> GSI 16 (level, low) -> IRQ 16 [67880.411186] i915 0000:00:02.0: setting latency timer to 64 [67880.413110] sd 0:0:0:0: [sda] Starting disk [67880.652031] usb 1-5: reset high speed USB device using ehci_hcd and address 2 [67880.896031] usb 1-8: reset high speed USB device using ehci_hcd and address 3 [67882.532200] ata1.00: ACPI cmd ef/03:45:00:00:00:a0 (SET FEATURES) filtered out [67882.532209] ata1.00: ACPI cmd ef/03:0c:00:00:00:a0 (SET FEATURES) filtered out [67882.548191] ata1.00: configured for UDMA/133 [67882.548697] PM: resume of devices complete after 2147.034 msecs [67882.549278] PM: Finishing wakeup. > [67882.549283] Restarting tasks ... done. > [67882.549761] video LNXVIDEO:00: Restoring backlight state > [67882.980083] usb 3-2: new low speed USB device using uhci_hcd and > address 5 [67883.150414] atl2 0000:03:00.0: irq 41 for MSI/MSI-X > [67883.151364] ADDRCONF(NETDEV_UP): eth0: link is not ready > [67883.159163] usb 3-2: New USB device found, idVendor=0973, > idProduct=0001 [67883.159174] usb 3-2: New USB device strings: Mfr=1, > Product=2, SerialNumber=0 [67883.159181] usb 3-2: Product: > SchlumbergerSema Cryptoflex e-gate [67883.159187] usb 3-2: > Manufacturer: SchlumbergerSema I assume this is where Daniel reloads the driver: > [67977.344181] atl2 0000:03:00.0: PCI INT A disabled [67977.379792] > Atheros(R) L2 Ethernet Driver - version 2.2.3 [67977.379802] Copyright > (c) 2007 Atheros Corporation. > [67977.379870] atl2 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> > IRQ 17 [67977.379892] atl2 0000:03:00.0: setting latency timer to 64 > [67993.948723] atl2 0000:03:00.0: irq 41 for MSI/MSI-X [67993.949268] > ADDRCONF(NETDEV_UP): eth0: link is not ready [67994.154327] atl2: eth0 > NIC Link is Up<100 Mbps Full Duplex> [67994.154739] > ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [...] > ** PCI devices: [...] > 03:00.0 Ethernet controller [0200]: Atheros Communications L2 Fast Ethernet [1969:2048] (rev a0) > Subsystem: ASUSTeK Computer Inc. Device [1043:8233] > 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: 16 bytes > Interrupt: pin A routed to IRQ 41 > Region 0: Memory at fbfc0000 (64-bit, non-prefetchable) [size=256K] > Expansion ROM at fbfa0000 [disabled] [size=128K] > Capabilities: <access denied> > Kernel driver in use: atl2 [...] Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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