> Userspace apps can't write directly to kernel RAM, but if you are using > buggy kernel driver, or driver compiled from wrong kernel configuration, > anything can happen. > > Does your openGL version install any kernel drivers? My openGL support comes from http://download.nvidia.com/XFree86/Linux-x86_64/1.0-6111/NVIDIA-Linux-x86_64-1.0-6111-pkg2.run. It´s a 7MB package from Nvidia that gives SuSE 9.1 64-bit hardware acceleration and open GL. I need it to play dvds / xvids on MPlayer. This shell-script does whatever it wants to. To my knowledge a module named "nvidia.o" is compiled and loaded. lsmod shows a module named nvidia so that´s for sure not a userspace app. Using some openGL app is one sure way to make the PC hang or stutter. For instance glxgears runs fine appart from some stops. I don´t mind these problems that much because I am not dependent on 3D Games or screensavers. Anyway a crash can allways happen. The thing is that a crash should not be that devastating to smash a whole filesystem. Fsck should be able to fix the occuring errors. > Mounting the file system or running fsck.ext3 should replay the journal. > > Mounting it read-only may help, but something is seriusly wrong with > your box. This crash happened twice, correct? > > IMO, correct fix is stop using such crashing drivers or upgrade/recompile > them to better match your kernel config. I don´t know what happens when mounting an ext3-fs. You have to mount it with mount -v to see a journal replay message, right? The crash happens when I start openGL games or the box gets overheated on hot days and heavy load. Transcode makes intensive use of the cpu for 12 and more hours. When it comes to upgrade / recompile I can only say that I use the most recent openGL driver from Nvidia and my config is the most closest possible to SuSE 9.1 64-bit. I didn´t upgrade the kernel, so it is still 2.6.4-52 with the changes needed to put it on a USB stick and boot the box with loop-aes. If someone reading this has experience with ATI graphics cards on SuSE I´d like to read about it! I do not know which hardware manufacturer offers better support. Regards, Peter -- NEU: WLAN-Router für 0,- EUR* - auch für DSL-Wechsler! GMX DSL = supergünstig & kabellos http://www.gmx.net/de/go/dsl - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/