I'm using an ISDN usb modem as part of the isdn presentation from British 
Telecom. This requires the hisax st5481 modules that make use of the 
linux-usb modules. I've been running successfully for about 10 month. Until I 
upgraded my hardware.

I've been in touch with a developer of hisax/st5481 and he thinks my problem 
is a generic usb one, so I'm trying this list.

The changes:

1. New machine, 2.0G, 512MB memory. uname -a gives:
Linux purser 2.4.22 #3 SMP Tue Dec 30 05:41:27 GMT 2003 i686 athlon i386 
GNU/Linux

2. The machine now has a Silicon Integrated Systems usb hub but I can't get it 
working at 2.0 - none of the hub modules will recognise it. There is a cmos 
option to disable version 2, disabling this at least allows me to get 
somewhere. The relevant modules are:

usb-storage            48824   0
printer                 8672   0
hisax_st5481           22260   2
hisax                 132608   0  [hisax_st5481]
isdn                  105216   2  [hisax]
isdnhdlc                5372   0  [hisax_st5481]
usb-ohci               21192   0  (unused)
usbcore                82496   1  [usb-storage printer hisax_st5481 usb-ohci]

I also use some usb-storage devices and a usb printer, hence the other 
modules. I'm not experiencing any problems with these.

4. I've upgraded to kernel 2.4.22, although I did this some weeks ago before 
the rest of the changes and didn't experience any problems. I'm still using 
this kernel even though I've now upgraded to redhat 9.

The messages:

I'm getting kernel messages such as:
Jan 12 11:38:51 purser kernel: usb-ohci.c: bug in call from de81b45a; use 
async!
Jan 12 11:38:51 purser kernel: st5481_usb.c: st5481_start_rcv: usb_submit_urb 
failed,status=-22
Jan 12 11:38:51 purser kernel: st5481_usb.c: st5481_start_rcv: usb_submit_urb 
failed,status=-22
Jan 12 11:59:30 purser kernel: st5481_b.c: usb_b_out_complete: urb status -75
Jan 12 11:59:30 purser kernel: st5481_usb.c: usb_in_complete: urb status -75

The effects:

Everything seems fine apart from the large numbers of the messages, but about 
5-6 times a day, there is a kernel panic and crash. Less often, maybe 2-3 
times a week, the isdn functions seem to lock up, but stopping and restarting 
fixes this.

I can't spot any pattern that would point to what causes the crashes.

I would be extremely grateful for any help you could give me. I've searched 
for anything relevant, but although I could find reports of similar errors 
using BT ISDN, there were no fixes.

Regards

Nick



-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-users

Reply via email to