Duncan Sands wrote: > Hi > >> I wonder if you could help me with a problem I have with my kernel >> and ST330? My ST330 (V4, black) is connected to an old K6 400Mhz >> box which runs kernel 2.6.17.8 and used to run for days on end with >> a 2Mb link. Since I was upgraded 8Mb the modem has synced at maximum >> rate and works fine. >> >> But since the DSL upgrade, at some time between a few minutes and >> two weeks after bringing the ppp link up I experience massive packet >> loss (80-90% is typical). This does not cure itself unless I reboot, >> and even that doesn't always clear the problem. The problem goes on for >> hours. There are no messages of any kind in the logs. > > please rebuild your kernel with CONFIG_USB_DEBUG=y. You may well then > get some helpful messages. > >> However, from time to time, and seemingly unconnected to the packet-loss >> events I see a reference to an urb having failed (I'm afraid I no longer >> have a log file to look at, so I cannot be precise about the message). >>
Well, here are the results... Dec 31 15:09:26 pfw pppd[3927]: Plugin pppoatm.so loaded. Dec 31 15:09:26 pfw pppd[3927]: PPPoATM plugin_init Dec 31 15:09:26 pfw pppd[3927]: PPPoATM setdevname_pppoatm - SUCCESS:0.38 Dec 31 15:09:26 pfw pppd[3927]: pppd 2.4.4 started by root, uid 0 Dec 31 15:09:26 pfw kernel: ATM dev 0: usbatm_atm_open: vpi 0, vci 38 Dec 31 15:09:26 pfw kernel: ATM dev 0: usbatm_atm_open: allocated vcc data 0xd5963980 Dec 31 15:09:26 pfw pppd[3927]: Using interface ppp0 Dec 31 15:09:26 pfw pppd[3927]: Connect: ppp0 <--> 0.38 Dec 31 15:09:29 pfw pppd[3927]: CHAP authentication succeeded Dec 31 15:09:29 pfw pppd[3927]: CHAP authentication succeeded Dec 31 15:09:29 pfw pppd[3927]: local IP address xxx.xxx.xxx.xxx Dec 31 15:09:29 pfw pppd[3927]: remote IP address yyy.yyy.yyy.yyy Dec 31 16:21:31 pfw kernel: ATM dev 0: usbatm_extract_one_cell: unknown vpi/vci (0/3656)! Dec 31 16:44:42 pfw kernel: ATM dev 0: usbatm_extract_one_cell: unknown vpi/vci (92/7393)! Dec 31 18:57:27 pfw kernel: ATM dev 0: usbatm_extract_one_cell: unknown vpi/vci (160/297)! Dec 31 20:22:22 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 20:22:27 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 20:22:28 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 20:22:31 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 192 (sarb->len: 144, vcc: 0xd6812400)! Dec 31 21:01:38 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:01:39 pfw last message repeated 4 times Dec 31 21:01:39 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 1536 (sarb->len: 1488, vcc: 0xd6812400)! Dec 31 21:01:40 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 1536 (sarb->len: 1488, vcc: 0xd6812400)! Dec 31 21:01:40 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:01:43 pfw last message repeated 3 times Dec 31 21:01:54 pfw kernel: printk: 1 messages suppressed. Dec 31 21:01:54 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:01:54 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 1536 (sarb->len: 1488, vcc: 0xd6812400)! Dec 31 21:02:01 pfw kernel: printk: 4 messages suppressed. Dec 31 21:02:01 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 1536 (sarb->len: 1488, vcc: 0xd6812400)! Dec 31 21:02:07 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:55:56 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:56:21 pfw last message repeated 10 times Dec 31 21:56:28 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:56:30 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:56:32 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 144 (sarb->len: 96, vcc: 0xd6812400)! Dec 31 21:56:34 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:56:44 pfw last message repeated 2 times Dec 31 21:56:47 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 192 (sarb->len: 144, vcc: 0xd6812400)! Dec 31 21:56:52 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length 1344 (sarb->len: 1296, vcc: 0xd6812400)! Dec 31 21:56:52 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:56:52 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! Dec 31 21:56:56 pfw kernel: printk: 2 messages suppressed. Dec 31 21:56:56 pfw kernel: ATM dev 0: usbatm_extract_one_cell: bogus pdu_length Then there was a continuous stream of similar messages until 22:01 Jan 1 00:00:34 pfw kernel: ATM dev 0: usbatm_extract_one_cell: packet failed crc check (vcc: 0xd6812400)! followed by 50 more similar messages in 20 minutes, then a break until 1am, followed by 5-20 similar messages per minute for about half of all the minutes thereafter for several hours. The machines were only handling minute quantities of mail and news. The mail feed failed at 1:20 and never restarted. News died at a similar time, although it did make contact a few times overnight. Pinging the other end of the ppp link this morning reported 40% packet loss, which might explain why news could get through sporadically. I guess everything keels over only when packet loss gets to 80% or so. What does this look like to you? Noise on the line? Regards, Steve Liste de diffusion modem ALCATEL SpeedTouch USB Pour se désinscrire : mailto:[EMAIL PROTECTED]
