Messages in this thread |  | | Subject | Re: 2.4 kernel series and the oom_killer and /proc/sys/vm/overcommit_memory | From | Robert Love <> | Date | 22 Aug 2002 13:22:27 -0400 |
| |
On Thu, 2002-08-22 at 11:19, Marc-Christian Petersen wrote:
> My question now: Why isn't it possible, if overcommit_memory is 0, to really > check if there is enough memory or not, and if NOT just to display a message > like "Not enough memory for execution. Aborted" ?
Because the overcommit checks in 2.4 stock are heuristic in nature - they simple compare an estimate of committed memory against what you are trying to allocate.
In 2.5 and 2.4-ac we have strict overcommit which couple accurate accounting of the committed address space with stricter rules to prevent overcommit.
Robert Love
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |