Bug 8301

Summary:	b2c2-flexcop-pci causes hard lock
Product:	v4l-dvb	Reporter:	Hendrik Borghorst (hendrik)
Component:	dvb-other	Assignee:	Mauro Carvalho Chehab (mchehab)
Status:	CLOSED CODE_FIX
Severity:	high	CC:	mrechberger, protasnb
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.21-rc5-git9	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	Patch flexcop-pci.c to call spin_lock_init before spin_lock_irq

Description Hendrik Borghorst 2007-04-04 07:17:01 UTC

Most recent kernel where this bug did *NOT* occur:
Distribution: Fedora 7 Rawhide
Hardware Environment: I386 Compatible
Software Environment: 
Problem Description:
If you modprobe the b2c2-flexcop-pci module you got a hardlock of your system. I
think it is because you use spin_lock_irq before spin_lock_init is called. I
created a patch which fixes the problem. Perhaps you could have a look at it.

Steps to reproduce:
1.modprobe b2c2-flexcop-pci with a b2c2 pci card inserted.

Comment 1 Hendrik Borghorst 2007-04-04 07:17:53 UTC

Created attachment 11048 [details]
Patch flexcop-pci.c to call spin_lock_init before spin_lock_irq

Comment 2 Natalie Protasevich 2007-06-21 23:18:58 UTC

The patch needs a review.
Thanks.

Comment 3 Mauro Carvalho Chehab 2007-06-22 13:43:08 UTC

This patch were already applied at kernel:
http://git.kernel.org/?p=linux/kernel/git/mchehab/v4l-dvb.git;a=commit;h=4f210e072235c3c123b068d348a1a02e624ff5be