>> in a different window, the computer freezes completely and needs a hard-reset
>> with Fedora 3.
>>
>> In previous times, I could often at least kill the X-server and all applications
>> with Ctrl+Alt+Backspace, or even better just close the console where I started
>> the program. But no luck anymore nowadays..
>>
>What video card you use? If it is nvidia do you use their driver? >I had problems with it nvidia. Give more details about your hardware, >kernel and the application. Do you run it as root?
You are right, it's an nVIDIA Geforce4 with driver 66.29: server glx vendor string: NVIDIA Corporation OpenGL renderer string: GeForce4 Ti 4400/AGP/SSE2 OpenGL version string: 1.5.2 NVIDIA 66.29
Kernel is 2.6.9-1.667
The application is e.g. this trivial program, run as any user:
(I have 512MB physical memory and 5GB swap (as I am about to upgrade to 2 GB phys.mem)):
#include <stdlib.h> #define MEMSIZE (300*1024*1024)
int main(int argc, char **argv)
{ char *mem; mem=malloc(MEMSIZE);
while (1)
{ memset(mem,0,MEMSIZE); } }If I run it twice in parallel, I freeze.
> You also can slow down the system and make it respond many hours >later easy... use crtl-sysrq-<X> combination to remount ro, sync your >disks and reboot in such cases (enable in /etc/sysctl.conf).
Thanks a lot, that's the hint I was looking for. Great! (Just used it after running the test program above ;-)
Greetings, Elmar
-- Elmar Krieger, PhD YASARA Biosciences & CMBI Outstation Austria Neue-Welt-Hoehe 13/b A-8042 Graz Austria/Europe
Ww
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