Messages in this thread |  | | Subject | Re: mm: critical shortage of bounce buffers | Date | Fri, 28 Sep 2001 19:33:07 +0100 (BST) | From | Alan Cox <> |
| |
> I've recently encountered the following message on a machine running RedHat's > 2.4.3-12 kernel : > > "mm: critical shortage of bounce buffers" > > I've searched through the kernel sources, but my 'find' just can't locate this > string anywhere.
Its in the high mem handling routines. It means the machine stalled for a moment doing I/O because it had no memory below 1Gb to use.
> Why does this message appear (apparently during high network load with the intel > eepro100 driver or e1000 driver). Is bounce buffers really in use on a x86 > machine with 2GB of RAM (normal smp RedHat kernel, not enterprise)??
The answer is yes. You can actually build yourself a custom none bounce buffer 1.8GB kernel with about 2Gb of user virtual space per app. For some applications it will perform better. - 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/
|  |