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Bug 96984 - (USB)Kernel oops with 2.4.20-18.7 and Speedtouch USB ADSL Modem
(USB)Kernel oops with 2.4.20-18.7 and Speedtouch USB ADSL Modem
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
i586 Linux
medium Severity high
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Assigned To: Pete Zaitcev
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2003-06-07 16:44 EDT by Philip Ross
Modified: 2007-04-18 12:54 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2003-08-24 18:50:07 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Kernel oops on starting modem_run (5.31 KB, text/plain)
2003-06-07 16:45 EDT, Philip Ross
no flags Details
Messages logged when starting the Speedtouch modem with kernel 2.4.20-13.7 (1.69 KB, text/plain)
2003-06-07 16:46 EDT, Philip Ross
no flags Details
Test fix #1 (ohci6) (637 bytes, patch)
2003-07-25 21:07 EDT, Pete Zaitcev
no flags Details | Diff

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2003:263 high SHIPPED_LIVE Updated 2.4 kernel resolves obscure bugs. 2003-08-20 00:00:00 EDT

  None (edit)
Description Philip Ross 2003-06-07 16:44:24 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3) Gecko/20030312

Description of problem:

I am using version 1.2 beta 1 of the Speedtouch USB driver from
http://speedtouch.sourceforge.net with a Speedtouch USB modem

This was working without any problems with kernel 2.4.20-13.7. 

I have just upgraded to the latest errata kernel 2.4.20-18.7 and I now get a
kernel oops when starting the driver (starting the modem_run program which
uploads the firmware to the device).

I have attached the relevant portion from /var/log/messages to this bug.

Version-Release number of selected component (if applicable):

How reproducible:


Steps to Reproduce:

1. Install Speedtouch 1.2 beta 1 drivers.
2. Upgrade to errata kernel 2.4.20-18.7.
3. Start modem_run.

Expected Results:  

I've attached the messages that usually get logged when starting the Speedtouch
modem with kernel 2.4.20-13.7.

Additional info:

My USB card is a PCI card. The following is reported in /proc/pci (when running
kernel 2.4.20-13.7):

Bus  0, device  15, function  0:
    USB Controller: OPTi Inc. 82C861 (rev 16).
      IRQ 11.
      Master Capable.  Latency=64.
      Non-prefetchable 32 bit memory at 0xffbea000 [0xffbeafff].

The natsemi module referenced is the driver for eth0.
Comment 1 Philip Ross 2003-06-07 16:45:51 EDT
Created attachment 92243 [details]
Kernel oops on starting modem_run
Comment 2 Philip Ross 2003-06-07 16:46:39 EDT
Created attachment 92244 [details]
Messages logged when starting the Speedtouch modem with kernel 2.4.20-13.7
Comment 3 Alan Cox 2003-06-07 21:40:11 EDT
You should report speedtouch problems to the speedtouch maintainers not to Red Hat.
Comment 4 Philip Ross 2003-06-08 05:37:51 EDT
I have reported this to the Speedtouch maintainers too. 

I thought it could be a problem with the latest errata kernel because the
RHSA-2003:187-25 advisory lists 'Driver bug fixes are included... for the USB
ohci driver'. This is a kernel oops that involves the USB ohci driver, so I
thought something may have been broken between 2.4.20-13.7 and 2.4.20-18.7.
Comment 5 Philip Ross 2003-06-08 06:11:22 EDT
Just to clarify - the Speedtouch USB driver I am using is a userspace driver
(the ATM connection is terminated in userspace). This crash occurs in a clean
(no patches applied) Red Hat kernel.
Comment 6 Pete Zaitcev 2003-06-08 11:45:10 EDT
No problem, reopening. It is possible that the ohci fix is at fault.
Unfortunately, it was a very important fix. I cannot back it out.
Comment 7 Tim Woodall 2003-06-14 08:53:42 EDT
I've also seen this problem (but haven't tested on the 2.4.20-13.7 kernel).

When using usb-uhci there is no kernel oops on my system here. The system I
have seen the oops on was either using usb-ohci or ehci-hcd. I'm pretty sure
it was the ohci usb controller. Unfortuately it's a remote box so I can't
easily check now.
Comment 8 Emad El Mehelmy 2003-07-08 01:11:42 EDT
I faced the same problem using RedHat 9.0 after upgrading to from 2.4.20-8 to
2.4.20-18.9 and I have usb-ohci

Comment 9 Philip Ross 2003-07-23 20:09:58 EDT
This is still a problem with the new errata kernel 2.4.20-19.7
Comment 10 Pete Zaitcev 2003-07-23 20:54:59 EDT
Thanks, I know. I didn't fix it yet.
Comment 11 Pete Zaitcev 2003-07-25 21:07:44 EDT
Created attachment 93158 [details]
Test fix #1 (ohci6)
Comment 12 Pete Zaitcev 2003-07-25 21:17:20 EDT
Original entry for the ohci disaster was in bug 84814, in case anyone
is wondering why we cannot just back out ohci changes from 2.4.20-13.
Comment 13 Pete Zaitcev 2003-07-30 15:23:18 EDT
CVS 2.4.20-19+

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