Memory leak with Solaris Host for 2.0.2

[Dan Jones]

HostOS - SunOS jcc-one 5.10 Generic_137112-07 i86pc i386 i86pc

GuestOS - OpenSolaris 200805

I start off with the long term stable memory usage of

jcc-one> memcheck

Total memory = 3068 MB

Used memory = 1652 MB

Free memory = 1416 MB

jcc-one>

Then I fire up VirtualBox and after a couple of minutes it settles to look like this

jcc-one> memcheck

Total memory = 3068 MB

Used memory = 2460 MB

Free memory = 608 MB

jcc-one>

which is what I would expect given the 1024MB memory size configured in VirtualBox.

Let the system sit idle for about 6 hours and we get

jcc-one> memcheck

Total memory = 3068 MB

Used memory = 2796 MB

Free memory = 272 MB

jcc-one>

and if I let it continue on for another 6 we hit the death of swap city.

FYI - memcheck is this simple beastie that I wrote long ago

to track database thrash on a large web site:

jcc-one> cat memcheck.c

#include <stdio.h>

#include <unistd.h>

void main ()

{

long total;

long free;

long page_size;

/* convert pages to kilo-pages */

total = sysconf(_SC_PHYS_PAGES) / 1024;

free = sysconf(_SC_AVPHYS_PAGES) / 1024;

/* convert page size to KB */

page_size = sysconf(_SC_PAGESIZE) / 1024;

total *= page_size;

free *= page_size;

printf ("Total memory = %ld MB\n", total);

printf (" Used memory = %ld MB\n", total - free);

printf (" Free memory = %ld MB\n", free);

exit(0);

}