Bug 63551

Summary:	[BISECTED]kernel freeze on boot
Product:	v4l-dvb	Reporter:	nilsc.becker
Component:	bt8xx	Assignee:	bt8xx (v4l-dvb_bt8xx)
Status:	NEW ---
Severity:	blocking	CC:	alan, john.tornblom
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	>=3.10	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	output of lspci -vv

Description nilsc.becker 2013-10-23 12:42:31 UTC

Created attachment 112071 [details]
output of lspci -vv

The kernel freezes on boot due to the bttv module with the tv card plugged in. With kernel version 3.9.x it does not do that.

Steps to reproduce:
1) Boot the PC with tv card plugged in.

I did a kernel bisect and ended up with the following commit that introduced the problem: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=01df530c2791610727e345b3dd97ef75943c7320

My card is Twinhan VisionPlus DVB card with a Bt878 controller. The output of lspci is attached.

Unfortunately I cannot provide log files from the crash as the freeze occurs at a stage where log files are not yet written to the disk.