Strange Network issues under FC2 SMP kernel
Richard Crawford
rscrawford at mossroot.com
Mon Dec 20 02:06:30 UTC 2004
Get this.
Whenever I boot my computer with the 2.6.x.FC2smp kernel, my network
card behaves very strangely: connectivity is sporadic at best, and many
connections time out completely. Pings even to other computers on my
own network indicate packet drops of up to 94% (except for 127.0.0.1, of
course). When I boot into the non-SMP kernel, though, I don't
experience this problem. All of the network settings are the same
whether I boot into SMP or not.
I've examined dmesg, of course, and there seems to be some sort of IRQ
problem. Here is part of dmesg:
NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out, tx_status 00 status e601.
diagnostics: net 0cfa media 8880 dma 0000003a fifo 0000
eth0: Interrupt posted but not delivered -- IRQ blocked by another
device?
Flags; bus-master 1, dirty 64(0) current 64(0)
Transmit list 00000000 vs. 1a668200.
0: @1a668200 length 8000002a status 0001002a
1: @1a6682a0 length 8000002a status 0001002a
2: @1a668340 length 8000002a status 0001002a
3: @1a6683e0 length 8000002a status 0001002a
4: @1a668480 length 8000002a status 0001002a
5: @1a668520 length 8000002a status 0001002a
6: @1a6685c0 length 8000002a status 0001002a
7: @1a668660 length 8000002a status 0001002a
8: @1a668700 length 8000002a status 0001002a
9: @1a6687a0 length 8000002a status 0001002a
10: @1a668840 length 8000002a status 0001002a
11: @1a6688e0 length 8000004d status 0c01004d
12: @1a668980 length 8000004d status 0c01004d
13: @1a668a20 length 8000004d status 0c01004d
14: @1a668ac0 length 8000004d status 8c01004d
15: @1a668b60 length 8000004d status 8c01004d
eth0: Resetting the Tx ring pointer.
I've gone into the network configuration tool several times, and reset
everything I could think of, even changed the IRQ value. Nothing seems
to help.
Any thoughts or suggestions would be greatly appreciated.
--
Richard S. Crawford / http://www.mossroot.com
AIM: Buffalo2K / ICQ: 11646404 / Y!: rscrawford
""We live as though the world were how it should be,
to show it what it can be." --"Angel", Season 4 ep. 1
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