Messages in this thread |  | | Subject | Re: [PATCH] 2.5.29: some compilation fixes for irq frenzy [OSS + i8x0 audio] | From | Alan Cox <> | Date | 30 Jul 2002 23:47:35 +0100 |
| |
On Tue, 2002-07-30 at 22:19, Andy Pfiffer wrote: > As luck would have it, I booted the kernel and played the tunes on a > 2-way P4 Xeon system. Nothing wedged, but then again, I didn't try to > break it. > > So, what did I break?
SMP support I think. A lot of the save_flags/cli stuff you changed looks like it needs to also lock out interrupts on the other processors, otherwise you can get a DMA pointer being updated under you.
- 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/
|  |