Messages in this thread |  | | Date | Mon, 8 Jan 2001 06:42:25 +0100 | From | Andi Kleen <> | Subject | Re: Subtle MM bug |
| |
On Sun, Jan 07, 2001 at 09:29:29PM -0800, Wayne Whitney wrote: > The application is some mathematics computations (modular symbols) using a > package called MAGMA; at times this requires very large matrices. The > RSS can get up to 870MB; for some reason a MAGMA process under linux > thinks it has run out of memory at 870MB, regardless of the actual > memory/swap in the machine. MAGMA is single-threaded.
I think it's caused by the way malloc maps its memory. Newer glibc should work a bit better by falling back to mmap even for smaller allocations (older does it only for very big ones)
-Andi
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |