I saw in the mailing list archives that someone reported this problem, but a lost the mail link. So, I'm reporting it again, with more details. I'm sending also some logs attached.
Problem: RCA Digital Broadband Cable Modem (reported by /proc as
"Thomson DCM245 Cable Modem") behaves badly, with arbitrary
disconnections and "strange" log messages.
Example: when downloading emails with fetchmail, disconnects suddenly;
the same occurs sometimes when "dhclient" is updating its releases, or
even when opening HTML pages.
PS: My other Cable Modem (Scientific Atlanta Webstar DPX110) works fine
with the same computer, so this problem is only with this RCA... :/
Technical details:
- Kernel 2.4.20
- Using "JE" UHCI driver
- some others in logs.
ifconfig output:
eth1 Link encap:Ethernet HWaddr 00:10:95:A4:A4:96
inet addr:200.208.227.240 Bcast:255.255.255.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5276 errors:0 dropped:0 overruns:0 frame:0
TX packets:3097 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:1947037 (1.8 Mb) TX bytes:458576 (447.8 Kb)
/proc/bus/usb/devices:
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI-alt Root Hub
S: SerialNumber=a800
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 17/900 us ( 2%), #Int= 1, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI-alt Root Hub
S: SerialNumber=a400
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=32 #Cfgs= 1
P: Vendor=069b ProdID=0704 Rev=26.00
S: Manufacturer=Thomson Consumer Electronics
S: Product=Thomson DCM245 Cable Modem
S: SerialNumber=001095A4A496
C:* #Ifs= 2 Cfg#= 1 Atr=40 MxPwr= 2mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=CDCEther
E: Ad=85(I) Atr=03(Int.) MxPS= 8 Ivl=64ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=CDCEther
I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=CDCEther
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
some logging in /var/log/sys.log (more in attachments):
CDCEther.c: Ethernet information found at device configuration. Trying
to use it anyway.
CDCEther.c: Found Header descriptor, CDC version 110.
CDCEther.c: Imperfect filtering support - need sw hashing
CDCEther.c: Can't use SetEthernetMulticastFilters request
CDCEther.c: detected BULK OUT packets of size 64
CDCEther.c: interrupt address: 5
CDCEther.c: interrupt interval: 64
CDCEther.c: eth1: Thomson Consumer Electronics Thomson DCM245 Cable
Modem 001095A4A496
CDCEther.c: eth1: 00:10:95:A4:A4:96
...
CDCEther.c: eth1: set multicast filters
CDCEther.c: eth1: too many MC filters for hardware, using allmulti
...
CDCEther.c: rx status -84
CDCEther.c: eth1: RX status -84
... (many of the previous lines)
usb.c: USB disconnect on device 00:07.2-2 address 2
CDCEther.c: got intr callback
hub.c: new USB device 00:07.2-2, assigned address 3
...
I hope that this (long) email helps to solve the problem. I can send
more information (or do more testing) if necessary.
=====
--
Anderson Lizardo
*lizardo.sytes.net*
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ifconfig.log
Description: ifconfig.log
sys.log
Description: sys.log
usbdevices.log
Description: usbdevices.log
