On Thursday 03 November 2005 16:21, Tony Nelson wrote: > At 2:55 PM -0500 11/3/05, Reuben D. Budiardja wrote: > >Hello, > >I have a small program that I use to check malloc. The program supposed to > >exhaust memory (heap) from malloc, then quit. <snip> > >My question is, why does this happen in FC-4 64-bit ? what is the > > difference on this machine and other machine ? This supposedly should not > > happend since I run this program as regular user, and it seems > > "dangerous" that a regular user can almost bring this machine down by > > running this. > > ... > > I can get the same effect with: > > $ grep -r "gzornl" / > > I think if you're patient your program will eventually run out of memory. That's probably too, but my question is: why does this program quickly terminate on other platform (RHEL 4/3, FC-4 32-bit) without grinding those machines to an almost halt, but not on FC-4 64-bit ? All machines have 1GB RAM. Secondly, why cant I limit the memory usage using ulimit (it seems to have no effect) ? Thanks. RDB
