Hi all,

I have an Asus P5K-VM motherboard coupled with Lite-On dvd writer. Everytime I insert a CD/DVD into the drive, I get a kernel panic message when the CD/DVD is being read.

Any idea what is the problem here? DVD reader is connected through IDE interface.

Hey! I got the same board with the same problem.... Your are not alone

I am able to reproduce (on demand) the kernel panic.

I am running Kalyway 10.5.2, upgraded to 10.5.3 (Kalyway combo update) on a P5K-VM, Q6700, 4GB Kingston 800 and NV 8500GT. Leo is installed on a 250GB SEAGATE ST3250310AS drive... no problem what so ever related to the drive, except a possible slower HD performance...

Something wrong with the IDE driver ?

Hope someone can help us!

I have same problem....

my system is GA p35-ds3l and 4x1G ram.vanilla kernel 64bit kalyway up to 10.5.4
250GB HDD on ICH9
Pioneer 109XL IDE DVD RW on jmicron368

4G ram dual channel mode...random Kernel panic
but 3G ram singal channel is fine...
and ...
who can help us?

help...................

It's a problem with the Jmicron driver. I had the same problem with my p5k deluxe, except that it seemed to happen after or during burning a dvd (great way to make coasters). Get a SATA drive, preferably pioneer, and it should work. I replaced with a SATA lite-on and it kept crashing the finder. Now using the Pioneer SATA drive it generally works, but if I leave a disk in there for a while without accessing it, then I get an non-recognized disc drive error.

I don't think my board uses Jmicron driver.  How do we know for certain that this problem is related to that?


I get this on Intel DP35DP, Gigabyte P43 board, and P35.  I would like to know for certain what is causing this problem.

I can tell you that all of them uses IDE writer drives.  Can anyone confirm this IS the IDE writer problem instead of guessing?

It's the ide and tour amount of RAM (at least i had this problem with another controller).
See my post:
http://forum.insanelymac.com/index.php?showtopic=127611



If your kernel panic (booting with -v debug=0x100) looks like this: http://forum.insanelymac.com/index.php?s=&...st&p=924060 i'm pretty sure it's the IDE controller. The problem is when you have more than 2 or 3 gb of ram, then the IDE controller must do DMA in memory adresses that cannot reach within a 32 bit address. AppleVIAATA, JMicron and AppleNForceATA use 32 bits addresses to process DMA commands. In the first post of that topic u may find modified kexts that uses 64 bit addresses. Give them a try and tell me.