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TICKET ARCHIVE -> Kernel Panic (on web video playback)

mjlarson - Aug 12, 2006 - 7:15 pm

I am experiencing Kernel Panics frequently, most often on web video playback (esp. youtube.com), but also during processing of photos to my iPod, processing of video from iMovie to iDVD, and during almost any video playback, except for playing a physical DVD in the drive. All of the above makes me think that this is a Quicktime problem, when I process video in ffmpegx I don't ket Kernel Panics.
This problem began in early May of this year (2006) and may be due to an update I installed shortly before that time, but I don't know what I installed when. Usually (foolishly?) I install updates as they are offered.
I have reported the Kernel Panic to Apple, and still have the panic file in my log and will post that is needed/appropriate. I have removed all 3rd party devices from the machine (PCI USB 2.0 and SCSI adapters) with no diffrence. I have repaired permissions & disks (via Disk Utility). I have passed all the tests on Tech Tool Pro. Also I have fscked the drive from the firmware prompt. I have also removed and tested individual DIMMs to track down the problem.
Here is some additional info on my system:
Optical Drive: PIONEER DVD-RW DVR-107D (upgraded from original drive)
Video: ATY,Rage128 AGP 16 MB (stock)

I haven't done one thing... archive and reinstall. I don't WANT to do that, but I know it might be something I should try. The only thing keeping me from doing it is the fact that the kernel panic seems to be related to Quicktime. And maybe I can solve this without the A&I

Thanks in advance, and hope that I have described the problem sufficently.

~Mike~

philippe99 - Aug 12, 2006 - 11:29 pm

Mike, welcome to macosx.com

Could you try to download -from Apple's site- the COMBO update corresponding to your actually running OS, then re-install over this running OS.
After the usual reboot following an install, repair permissions with DU and reboot again.

Well, some months agao, I had a similar ticket with a 10.3.x client due to a QT update: the COMBO tip solves his problem.

On the contrary to you, I never apply immediatly the updates -automacti updates are disabled- and I always installed the OS update through the OS; generally I wait months (yes, months) before applying an update, whatever there are related to the OS, security or iTunes/QT stuffs.

In my case QT7.0.4 and 10.4.6 and no problem with any video playback, youtube/DVD/after ffmpegx encoding

Your remark about "ffmpegx=no problem -> QT" is a very good inference: that is always when I do when I suspect a problem with Apple's built-in video playback: run preview in ffmpegx
You can also download VLC (www.videolan.org) which is a more powerfull video playback than the Apple's one.

Regards
Philippe

mjlarson - Aug 13, 2006 - 2:23 pm

Philippe,

Thank you so much for your quick response.

I have followed your advice, but it didn't work for me. So I did an archive and install. Still no difference. So I am inclined to believe that this is a hardware problem. I have already tested the memory, and it appears to be ok, I have not bought more memory and installed it to be *absoutely* certain. I am more inclined to think that it is the video card, something that the OS is touching that isn't functionig as expected. This problem occured in 10.4.0, I decided to test before I applied the updates, just to be sure that the updates are not the problem. Possibly there might be another out there that could point me in the right direction...

Thank you very much again,

~Mike~

philippe99 - Aug 17, 2006 - 8:26 am

I would try to boot on an OSX Install CD and test again while using the OS on the CD/DVD: doing this, if the problem still occurs, you can be quites sure -as you think- that this a hardware problem. Otherwise, it is a software conflict and -for me- only an Erase&Install to start on a fresh installed OS is the solution.
Phil

TechSupport - Aug 17, 2006 - 1:25 pm