Comment 8 for bug 109629

Same problem here. Very annoying, this 3c905 has been working perfectly for around 10 years...

[ 41.193933] 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
[ 41.193938] 0000:05:01.0: 3Com PCI 3c905 Boomerang 100baseTx at 000000000001b000.

...
[404126.567091] 15: @ffff810059798b60 length 8000002a status 8000002a
[404126.567096] eth0: Resetting the Tx ring pointer.
[404136.556391] NETDEV WATCHDOG: eth0: transmit timed out
[404136.556401] eth0: transmit timed out, tx_status 00 status e000.
[404136.556410] diagnostics: net 0cc0 media 8802 dma 00880021 fifo 8800
[404136.556418] Flags; bus-master 1, dirty 16(0) current 32(0)
[404136.556422] Transmit list 59798200 vs. ffff810059798200.
[404136.556427] 0: @ffff810059798200 length 80000099 status 00000099
[404136.556431] 1: @ffff8100597982a0 length 8000018a status 0000018a
...

Anyone knows which kernel to revert to to avoid this problem?