Sound / network problems.

Kjartan Maraas (kmaraas@fib.hl.no)
Sun, 21 Jun 1998 17:53:54 +0200


While listening to an interview about mozilla found on

http://www.pseudo.com/shows/technetcast/archives/v_technetcastMay29_98_301pm.ram

the sound suddenly died. If I stop the playback in realplayer and start
it up again
it's okay again.

In the logs i get this:

Jun 21 16:54:42 linux kernel: UDP: bad checksum. From CF733E2D:1063 to
C1D76782:7096 ulen 545
Jun 21 17:03:01 linux kernel: UDP: bad checksum. From CF733E2D:1063 to
C1D76782:7096 ulen 427
Jun 21 17:05:35 linux kernel: Sound: DMA (output) timed out - IRQ/DRQ
config error?
Jun 21 17:07:20 linux kernel: UDP: bad checksum. From CF733E2D:1063 to
C1D76782:7096 ulen 492
Jun 21 17:07:50 linux kernel: UDP: bad checksum. From CF733E2D:1151 to
C1D76782:7000 ulen 387
Jun 21 17:15:18 linux kernel: UDP: bad checksum. From CF733E2D:1151 to
C1D76782:7000 ulen 612
Jun 21 17:15:21 linux kernel: UDP: bad checksum. From CF733E2D:1151 to
C1D76782:7000 ulen 324
Jun 21 17:15:40 linux kernel: UDP: bad checksum. From CF733E2D:1151 to
C1D76782:7000 ulen 545
Jun 21 17:16:56 linux kernel: UDP: bad checksum. From CF733E2D:1151 to
C1D76782:7000 ulen 638
Jun 21 17:16:58 linux kernel: UDP: bad checksum. From CF733E2D:1151 to
C1D76782:7000 ulen 334
Jun 21 17:18:22 linux kernel: Sound: DMA (output) timed out - IRQ/DRQ
config error?
Jun 21 17:25:42 linux kernel: Sound: DMA (output) timed out - IRQ/DRQ
config error?
Jun 21 17:26:51 linux kernel: UDP: bad checksum. From CF733E2D:1281 to
C1D76782:7115 ulen 324
Jun 21 17:27:26 linux kernel: UDP: bad checksum. From CF733E2D:1281 to
C1D76782:7115 ulen 324
Jun 21 17:29:01 linux kernel: TCPv4 bad checksum from
207.200.73.153:0050 to 193.215.103.130:04a7, len=1436/1436/1456
Jun 21 17:29:05 linux kernel: TCPv4 bad checksum from
192.148.253.39:0050 to 193.215.103.130:04a9, len=349/349/369
Jun 21 17:29:08 linux kernel: TCPv4 bad checksum from
207.200.73.153:0050 to 193.215.103.130:04a7, len=1438/1438/1458
Jun 21 17:30:12 linux kernel: UDP: bad checksum. From CF733E2D:1281 to
C1D76782:7115 ulen 324
Jun 21 17:31:43 linux kernel: TCPv4 bad checksum from
207.200.73.153:0050 to 193.215.103.130:04b0, len=1467/1467/1487
Jun 21 17:35:25 linux kernel: Sound: DMA (output) timed out - IRQ/DRQ
config error?
Jun 21 17:40:19 linux kernel: UDP: bad checksum. From CF733E2D:1281 to
C1D76782:7115 ulen 505

I'm currently going straight into a cisco 761 ISDN router.

Strange... As I was typing this realplayer was still playing in the
background and sound
came back after about ten minutes of silence. After checking the logs
again I can see
that this happened just after another series of UDP: bad checksum...
messages.

This seems to go like this:

playing fine -> UDP: bad checksum -> no sound -> new UDP: bad checksum
-> sound again.

Kernel 2.1.106-ac2
AMD K6-200
Kingston PCI adapter
Red Hat 5.1
RealPlayer 5.0 gold?

Anything else I should try?

Cheers
Kjartan

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