On 23 May, Juan J. Quintela wrote:
>>>>>> "tim" == t n vanderleeuw <t.n.vanderleeuw@chello.nl> writes:
>
> tim> Hi,
> tim> with pre9-3 and pre9-4 I'm experiencing lockups when OOM.
> tim> A random process will be killed (NOT the runaway process) and the
> tim> computer hangs solid after that (still pingable, but nothing else
> tim> works, not even VT switching or capslock toggle).
>
[...]
>
> If that is reproducible, could you give me a program/command line that
> shows the OOM. I also thougth that the OOM problems was gone.
>
> Later, Juan.
>
I have the following memory-eater which can repeatedly kill my box.
The symptoms: VT switching still works, unlike what I described above.
But other than that, the machine is that. After only a few seconds, the
computer stops taking any keyboard input. About half a minute later,
the first (more or less random) program is killed, and after that klogd
seems to be the victim once every minute or so.
The runaway debconf script had a worse effect on the system tho. I
don't know what else it did to cause problems.
I'm going to test pre9-5 now.
--Tim
/*
eatmem.c
If you have more memory than about 64MB RAM + 130MB swap, you might
need to inrease the ARR_SIZE to get an OOM situation.
Tim N. van der leeuw <t.n.vanderleeuw@chello.nl>
*/
#include <stdlib.h>
#define ARR_SIZE 1024*2048
#define ALLOC_SIZE 1024
int main ()
{
char* arr[ARR_SIZE];
int i;
for (i=0; i<4; ++i)
fork();
for(i=0; i < ARR_SIZE; ++i)
{
arr[i] = malloc(ALLOC_SIZE);
}
}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue May 23 2000 - 21:00:24 EST