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Bug 76657 - modprobe cpia freezes system
Summary: modprobe cpia freezes system
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 7.2
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2002-10-24 16:58 UTC by Richard Moss
Modified: 2008-08-01 16:22 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2004-09-30 15:40:07 UTC

Attachments (Terms of Use)

Description Richard Moss 2002-10-24 16:58:32 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.6 (X11; Linux i686; U;) Gecko/20020913

Description of problem:
modprobe cpia with new 2.4.18-17.xsmp kernel freezes system 100%

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

How reproducible:

Steps to Reproduce:
1.login as root
2.modprobe cpia
3.reboot,power off only option

Actual Results:  can't change console
no response to ctrl+alt+del

Expected Results:  module cpia loads & webcam app can be started

Additional info:

I have been starting the cpia module
at boot in rc.local and the calling webcam for 
a live parallel port camera on my webpage
my server is a pII smp dell power edge 
this has been working fine untill the newest kernel upgrade
after the upgrade and reboot the system froze before
login & after a recover boot & remoing from rc.local
it boots. I have tried modrpobe cpia after login 
and it freezes the system up 100%

Comment 1 Richard Moss 2002-10-30 16:44:26 UTC
only on smp kernel,I have tesed with non-smp and no problem
I have also gone up to 2.4.19 kernel and hard compiled in the cpia
with the same effect ..deadlock but only in smp

Comment 2 Richard Moss 2002-12-06 16:59:43 UTC
OK so..
I have compiled in (and out) the parallel port with 2.4.20
I have used the src from 1.2.2
I still get the same deadlock 
I do get messages in var now that show the modules
going in & the moment it adds in the cpia_pp
it freezes, when I just add in videodev & cpia (sans
it won't freeze (but of couse there is still no camera)
I have made a non-smp kernel and it works again
in reading postings I found a reference to the parport
driver in the kernel & made the mods to the src as well
with the same effects as before..
suggestions ? 
what should the perms in /dev be on video ?

Comment 3 Bugzilla owner 2004-09-30 15:40:07 UTC
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem

The Fedora Legacy project ( maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at:

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