Messages in this thread | | | Subject | Re: [PATCH] strict VM overcommit | From | Robert Love <> | Date | 18 Jul 2002 15:27:26 -0700 |
| |
On Thu, 2002-07-18 at 15:08, Adrian Bunk wrote:
> Out of interest: > > How is assured that it's impossible to OOM when the amount of memory > shrinks? > > IOW: > - allocate very much memory > - "swapoff -a"
Well, seriously: don't do that.
But `swapoff' will not succeed if there is not enough swap or physical memory to move the pages to... if it does succeed, then there is enough storage elsewhere. At that point, you are not OOM but you may now have more address space allocated than the strict accounting would typically allow - thus no allocations will succeed so you should not be able to OOM.
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/
| |