This sounds exacly like the problem reported in #503821.

This ugly test program should be able to reproduce the problem
even if you extend the memory on Dom0 to 256M or more.


/* my amount of ram */
#define TESTSIZE 2048000

struct testchunk {
char name[1048576];

int *p;
int t;
for (t=0;t p = (int *) malloc(sizeof(struct testchunk));

Best Regards,

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