though the new bug fix for Tx timeout from Mufasa Yang in Rev 1.08.06, the
problem is not fixed at all. The problem appeares now not quite often as
before.
I can find the following logentries in /var/log/messages:
Oct 24 19:40:25 susi kernel: eth0: Media Link Off
Oct 24 19:40:35 susi kernel: eth0: Media Link On 100mbps full-duplex
Oct 24 19:40:36 susi kernel: eth0: Media Link Off
Oct 24 19:40:46 susi kernel: eth0: Media Link On 100mbps full-duplex
Oct 24 19:40:47 susi kernel: eth0: Media Link Off
Oct 24 19:40:57 susi kernel: eth0: Media Link On 100mbps full-duplex
Oct 24 19:40:58 susi kernel: eth0: Media Link Off
Oct 24 19:41:07 susi kernel: NETDEV WATCHDOG: eth0: transmit timed out
Oct 24 19:41:07 susi kernel: eth0: Transmit timeout, status 00000004
00000000
Oct 24 19:41:08 susi kernel: eth0: Media Link On 100mbps full-duplex
Oct 24 19:41:09 susi kernel: eth0: Media Link Off
Oct 24 19:41:18 susi kernel: NETDEV WATCHDOG: eth0: transmit timed out
Oct 24 19:41:18 susi kernel: eth0: Transmit timeout, status 00000004
00000040
Oct 24 19:41:19 susi kernel: eth0: Media Link On 100mbps full-duplex
Oct 24 19:41:20 susi kernel: eth0: Media Link Off
Oct 24 19:41:30 susi kernel: eth0: Media Link On 100mbps full-duplex
The problem occures between two sis900-cards (see lspci). You can fix it by
restarting the network on one of the two machines (including rmmod sis900).
00:00.0 Host bridge: Acer Laboratories Inc. [ALi] M1541 (rev 04)
Subsystem: Acer Laboratories Inc. [ALi] ALI M1541 Aladdin V/V+ AGP
System Controller
Flags: bus master, slow devsel, latency 64
Memory at e6000000 (32-bit, non-prefetchable) [size=16M]
Capabilities: [b0] AGP version 1.0
00:01.0 PCI bridge: Acer Laboratories Inc. [ALi] M5243 (rev 04) (prog-if 00
[Normal decode])
Flags: bus master, slow devsel, latency 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: e4800000-e5ffffff
Prefetchable memory behind bridge: e7f00000-e7ffffff
00:03.0 Bridge: Acer Laboratories Inc. [ALi] M7101 PMU
Subsystem: Acer Laboratories Inc. [ALi] ALI M7101 Power Management
Controller
Flags: medium devsel
00:07.0 ISA bridge: Acer Laboratories Inc. [ALi] M1533 PCI to ISA Bridge
[Aladdin IV] (rev c3)
Flags: bus master, medium devsel, latency 0
00:0a.0 Multimedia audio controller: Xilinx, Inc. RME Digi96
Flags: slow devsel, IRQ 12
Memory at e3000000 (32-bit, non-prefetchable) [size=16M]
00:0b.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 10/100
Ethernet (rev 02)
Subsystem: Silicon Integrated Systems [SiS] SiS900 10/100 Ethernet
Adapter
Flags: bus master, medium devsel, latency 32, IRQ 10
I/O ports at b800 [size=256]
Memory at e2800000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [40] Power Management version 1
00:0f.0 IDE interface: Acer Laboratories Inc. [ALi] M5229 IDE (rev c1)
(prog-if 8a [Master SecP PriP])
Flags: bus master, medium devsel, latency 32
I/O ports at b400 [size=16]
01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP
1X/2X (rev 5c) (prog-if 00 [VGA])
Subsystem: ATI Technologies Inc: Unknown device 0084
Flags: bus master, stepping, medium devsel, latency 64, IRQ 11
Memory at e5000000 (32-bit, non-prefetchable) [size=16M]
I/O ports at d800 [size=256]
Memory at e4800000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at e7fe0000 [disabled] [size=128K]
Capabilities: [50] AGP version 1.0
I would be very happy if this very old problem could be really fixed.
Regards,
Andreas Hartmann
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