Thread (34 messages) 34 messages, 7 authors, 2012-11-05

Re: A reliable kernel panic (3.6.2) and system crash when visiting a particular website

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From: Daniel Mack <hidden>
Date: 2012-10-21 12:04:03
Also in: linux-media, lkml

On 21.10.2012 13:59, Artem S. Tashkinov wrote:
On Oct 21, 2012, Borislav Petkov wrote:
quoted
On Sun, Oct 21, 2012 at 01:57:21AM +0000, Artem S. Tashkinov wrote:
quoted
The freeze happens on my *host* Linux PC. For an experiment I decided
to check if I could reproduce the freeze under a virtual machine - it
turns out the Linux kernel running under it also freezes.
I know that - but a freeze != oops - at least not necessarily. Which
means it could very well be a different issue now that vbox is gone.

Or, it could be the same issue with different incarnations: with vbox
you get the corruptions and without it, you get the freezes. I'm
assuming you do the same flash player thing in both cases?

Here's a crazy idea: can you try to reproduce it in KVM?
OK, dismiss VBox altogether - it has a very buggy USB implementation, thus
it just hangs when trying to access my webcam.
Ok.
What I've found out is that my system crashes *only* when I try to enable
usb-audio (from the same webcam) - I still have no idea how to capture a
panic message, but I ran

"while :; do dmesg -c; done" in xterm, then I got like thousands of messages
and I photographed my monitor:

http://imageshack.us/a/img685/9452/panicz.jpg
A hint at least. How did you enable the audio record exactly? Can you
reproduce this with arecord?

What chipset are you on? Please provide both "lspci -v" and "lsusb -v"
dumps. As I said, I fail to reproduce that issue on any of my machines.


Daniel

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