Comment 7 for bug 109629

I have the same problem.

kern.log excerpt:
Jun 23 07:51:06 myhost kernel: [199555.063000] NETDEV WATCHDOG: eth1: transmit timed out
Jun 23 07:51:06 myhost kernel: [199555.063000] eth1: transmit timed out, tx_status 00 status e601.
Jun 23 07:51:06 myhost kernel: [199555.063000] diagnostics: net 0cc8 media 8880 dma 0000003a fifo 0000
Jun 23 07:51:06 myhost kernel: [199555.063000] eth1: Interrupt posted but not delivered -- IRQ blocked by another device?
Jun 23 07:51:06 myhost kernel: [199555.063000] Flags; bus-master 1, dirty 826375(7) current 826375(7)
Jun 23 07:51:06 myhost kernel: [199555.063000] Transmit list 00000000 vs. dfd2c660.
Jun 23 07:51:06 myhost kernel: [199555.063000] 0: @dfd2c200 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 1: @dfd2c2a0 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 2: @dfd2c340 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 3: @dfd2c3e0 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 4: @dfd2c480 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 5: @dfd2c520 length 8000002a status 8001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 6: @dfd2c5c0 length 8000002a status 8001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 7: @dfd2c660 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 8: @dfd2c700 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 9: @dfd2c7a0 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 10: @dfd2c840 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 11: @dfd2c8e0 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 12: @dfd2c980 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 13: @dfd2ca20 length 8000002e status 0001002e
Jun 23 07:51:06 myhost kernel: [199555.063000] 14: @dfd2cac0 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] 15: @dfd2cb60 length 8000002a status 0001002a
Jun 23 07:51:06 myhost kernel: [199555.063000] eth1: Resetting the Tx ring pointer.

uname -a:
Linux scatology 2.6.20-16-lowlatency #2 SMP PREEMPT Thu Jun 7 20:23:03 UTC 2007 i686 GNU/Linux

lspci:
00:00.0 Host bridge: nVidia Corporation nForce3 250Gb Host Bridge (rev a1)
00:01.0 ISA bridge: nVidia Corporation nForce3 250Gb LPC Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation nForce 250Gb PCI System Management (rev a1)
00:02.0 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
00:02.1 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
00:02.2 USB Controller: nVidia Corporation nForce3 EHCI USB 2.0 Controller (rev a2)
00:05.0 Bridge: nVidia Corporation CK8S Ethernet Controller (rev a2)
00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb AC'97 Audio Controller (rev a1)
00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA Controller (v2.5) (rev a2)
00:09.0 IDE interface: nVidia Corporation CK8S Serial ATA Controller (v2.5) (rev a2)
00:0a.0 IDE interface: nVidia Corporation CK8S Serial ATA Controller (v2.5) (rev a2)
00:0b.0 PCI bridge: nVidia Corporation nForce3 250Gb AGP Host to PCI Bridge (rev a2)
00:0e.0 PCI bridge: nVidia Corporation nForce3 250Gb PCI-to-PCI Bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation NV44A [GeForce 6200] (rev a1)
02:09.0 Ethernet controller: 3Com Corporation 3c900B-TPO Etherlink XL [Cyclone] (rev 04)
02:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10)

/proc/interrupts:
           CPU0
  0: 2932311 IO-APIC-edge timer
  1: 4948 IO-APIC-edge i8042
  7: 0 IO-APIC-edge parport0
  8: 3 IO-APIC-edge rtc
  9: 0 IO-APIC-fasteoi acpi
 14: 35882 IO-APIC-edge ide0
 15: 26457 IO-APIC-edge ide1
 16: 29201 IO-APIC-fasteoi ohci_hcd:usb1, libata
 17: 17 IO-APIC-fasteoi ohci_hcd:usb2, libata
 18: 129633 IO-APIC-fasteoi ehci_hcd:usb3, NVidia CK8S
 19: 292128 IO-APIC-fasteoi eth0
 20: 290715 IO-APIC-fasteoi eth1
 21: 347604 IO-APIC-fasteoi eth2, nvidia
NMI: 0
LOC: 2931995
ERR: 0
MIS: 0

lspci -vvv excerpt:
02:09.0 Ethernet controller: 3Com Corporation 3c900B-TPO Etherlink XL [Cyclone] (rev 04)
        Subsystem: 3Com Corporation 3C900B-TPO Etherlink XL TPO 10Mb
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (2500ns min, 12000ns max), Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 20
        Region 0: I/O ports at 8c00 [size=128]
        Region 1: Memory at fdfff000 (32-bit, non-prefetchable) [size=128]
        [virtual] Expansion ROM at fde00000 [disabled] [size=128K]
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-