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

2012-11-05 Thread Christof Meerwald
On Sat, Nov 03, 2012 at 03:16:36PM +0100, Daniel Mack wrote: On 03.11.2012 15:10, Christof Meerwald wrote: http://comments.gmane.org/gmane.comp.voip.twinkle/3052 and http://pastebin.com/aHGe1S1X for a self-contained C test. Some questions: - Are you seeing the same issue with 3.6.x? I

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

2012-11-03 Thread Daniel Mack
On 03.11.2012 15:10, Christof Meerwald wrote: On Sat, 20 Oct 2012 23:15:17 + (GMT), Artem S. Tashkinov wrote: It's almost definitely either a USB driver bug or video4linux driver bug: I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here:

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

2012-11-03 Thread Christof Meerwald
On Sat, 20 Oct 2012 23:15:17 + (GMT), Artem S. Tashkinov wrote: It's almost definitely either a USB driver bug or video4linux driver bug: I'm CC'ing linux-media and linux-usb mailing lists, the problem is described here: https://lkml.org/lkml/2012/10/20/35

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

2012-11-03 Thread Sven-Haegar Koch
On Sat, 3 Nov 2012, Daniel Mack wrote: On 03.11.2012 15:10, Christof Meerwald wrote: On Sat, 20 Oct 2012 23:15:17 + (GMT), Artem S. Tashkinov wrote: It's almost definitely either a USB driver bug or video4linux driver bug: I'm CC'ing linux-media and linux-usb mailing lists, the

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

2012-10-22 Thread Alan Stern
On Sun, 21 Oct 2012, Artem S. Tashkinov wrote: dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221 The first problem in the log is endpoint list corruption. Here's a debugging patch which should provide a little more information. Alan Stern

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

2012-10-22 Thread Daniel Mack
On 22.10.2012 17:17, Alan Stern wrote: On Sun, 21 Oct 2012, Artem S. Tashkinov wrote: dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221 The first problem in the log is endpoint list corruption. Here's a debugging patch which should

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

2012-10-22 Thread Alan Stern
On Mon, 22 Oct 2012, Daniel Mack wrote: On 22.10.2012 17:17, Alan Stern wrote: On Sun, 21 Oct 2012, Artem S. Tashkinov wrote: dmesg messages up to a crash can be seen here: https://bugzilla.kernel.org/attachment.cgi?id=84221 The first problem in the log is endpoint list

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

2012-10-22 Thread Artem S. Tashkinov
On Oct 22, 2012, Alan Stern st...@rowland.harvard.edu wrote: A BUG() at these points would crash the machine hard. And where we came from doesn't matter; what matters is the values in the pointers. OK, here's what the kernel prints with your patch: usb 6.1.4: ep 86 list del corruption prev:

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

2012-10-22 Thread Alan Stern
On Mon, 22 Oct 2012, Artem S. Tashkinov wrote: OK, here's what the kernel prints with your patch: usb 6.1.4: ep 86 list del corruption prev: e5103b54 e5103a94 e51039d4 A small delay before I got thousands of list_del corruption messages would have been nice, but I managed to catch the

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 01:15, Artem S. Tashkinov wrote: You don't get me - I have *no* VirtualBox (or any proprietary) modules running - but I can reproduce this problem using *the same system running under* VirtualBox in Windows 7 64. It's almost definitely either a USB driver bug or video4linux

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

2012-10-21 Thread Borislav Petkov
On Sun, Oct 21, 2012 at 01:57:21AM +, Artem S. Tashkinov wrote: 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

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 12:34, Daniel Mack wrote: On 21.10.2012 01:15, Artem S. Tashkinov wrote: You don't get me - I have *no* VirtualBox (or any proprietary) modules running - but I can reproduce this problem using *the same system running under* VirtualBox in Windows 7 64. It's almost

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

2012-10-21 Thread Artem S. Tashkinov
On Oct 21, 2012, Borislav Petkov wrote: On Sun, Oct 21, 2012 at 01:57:21AM +, Artem S. Tashkinov wrote: 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

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 13:59, Artem S. Tashkinov wrote: On Oct 21, 2012, Borislav Petkov wrote: On Sun, Oct 21, 2012 at 01:57:21AM +, Artem S. Tashkinov wrote: 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 -

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 13:59, Artem S. Tashkinov wrote: On Oct 21, 2012, Borislav Petkov wrote: On Sun, Oct 21, 2012 at 01:57:21AM +, Artem S. Tashkinov wrote: 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 -

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

2012-10-21 Thread Artem S. Tashkinov
On Oct 21, 2012, Daniel Mack wrote: 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. All other

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

2012-10-21 Thread Daniel Mack
[Cc: alsa-devel] On 21.10.2012 14:30, Artem S. Tashkinov wrote: On Oct 21, 2012, Daniel Mack wrote: 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

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

2012-10-21 Thread Artem S. Tashkinov
On Oct 21, 2012, Daniel Mack wrote: [Cc: alsa-devel] On 21.10.2012 14:30, Artem S. Tashkinov wrote: On Oct 21, 2012, Daniel Mack wrote: 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

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 16:57, Artem S. Tashkinov wrote: On Oct 21, 2012, Daniel Mack wrote: [Cc: alsa-devel] On 21.10.2012 14:30, Artem S. Tashkinov wrote: On Oct 21, 2012, Daniel Mack wrote: A hint at least. How did you enable the audio record exactly? Can you reproduce this with arecord?

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

2012-10-21 Thread Alan Stern
On Sun, 21 Oct 2012, Artem S. Tashkinov wrote: 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

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

2012-10-21 Thread Alan Stern
On Sun, 21 Oct 2012, Daniel Mack wrote: As the usb list is still in Cc: - Artem's lcpci dump shows that his machine features XHCI controllers. Can anyone think of a relation to this problem? And Artem, is there any way you boot your system on an older machine that only has EHCI ports?

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

2012-10-21 Thread Borislav Petkov
On Sun, Oct 21, 2012 at 11:59:36AM +, Artem S. Tashkinov wrote: http://imageshack.us/a/img685/9452/panicz.jpg list_del corruption. prev-next should be ... but was ... Btw, this is one of the debug options I told you to enable. I cannot show you more as I have no serial console to use :(

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

2012-10-21 Thread Artem S. Tashkinov
On Oct 21, 2012, Borislav Petkov b...@alien8.de wrote: On Sun, Oct 21, 2012 at 11:59:36AM +, Artem S. Tashkinov wrote: http://imageshack.us/a/img685/9452/panicz.jpg list_del corruption. prev-next should be ... but was ... Btw, this is one of the debug options I told you to

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 21:49, Artem S. Tashkinov wrote: On Oct 21, 2012, Borislav Petkov b...@alien8.de wrote: On Sun, Oct 21, 2012 at 11:59:36AM +, Artem S. Tashkinov wrote: http://imageshack.us/a/img685/9452/panicz.jpg list_del corruption. prev-next should be ... but was ... Btw, this is

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

2012-10-21 Thread Borislav Petkov
On Sun, Oct 21, 2012 at 07:49:01PM +, Artem S. Tashkinov wrote: I ran it this way: while :; do dmesg -c; done | scat /dev/sda11 (yes, straight to a hdd partition to eliminate a FS cache) Well, I'm no fs guy but this should still go through the buffer cache. I think the O_SYNC flag makes

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

2012-10-21 Thread Artem S. Tashkinov
Nice. Could you do that again with the patch applied I sent yo some hours ago? That patch was of no help - the system has crashed and I couldn't spot relevant messages. I've no idea what it means. Artem -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a

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

2012-10-21 Thread Daniel Mack
On 21.10.2012 22:43, Artem S. Tashkinov wrote: Nice. Could you do that again with the patch applied I sent yo some hours ago? That patch was of no help - the system has crashed and I couldn't spot relevant messages. I've no idea what it means. The sequence of driver callbacks issued on

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

2012-10-20 Thread Artem S. Tashkinov
You don't get me - I have *no* VirtualBox (or any proprietary) modules running - but I can reproduce this problem using *the same system running under* VirtualBox in Windows 7 64. It's almost definitely either a USB driver bug or video4linux driver bug: I'm CC'ing linux-media and linux-usb

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

2012-10-20 Thread Borislav Petkov
On Sat, Oct 20, 2012 at 11:15:17PM +, Artem S. Tashkinov wrote: You don't get me - I have *no* VirtualBox (or any proprietary) modules running Ok, good. We got that out of the way - I wanted to make sure after you replied with two other possibilities of the system freezing. - but I can

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

2012-10-20 Thread Artem S. Tashkinov
On Oct 21, 2012, Borislav Petkov wrote: On Sat, Oct 20, 2012 at 11:15:17PM +, Artem S. Tashkinov wrote: You don't get me - I have *no* VirtualBox (or any proprietary) modules running Ok, good. We got that out of the way - I wanted to make sure after you replied with two other

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

2012-10-20 Thread Alan Stern
On Sat, 20 Oct 2012, Artem S. Tashkinov wrote: You don't get me - I have *no* VirtualBox (or any proprietary) modules running - but I can reproduce this problem using *the same system running under* VirtualBox in Windows 7 64. It's almost definitely either a USB driver bug or video4linux