Messages in this thread | | | Subject | Re: PATCH: [2.4.21-pre3] Fix for SMP race condition in IDE code | From | Alan Cox <> | Date | 10 Jan 2003 19:29:37 +0000 |
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On Fri, 2003-01-10 at 18:12, Ross Biro wrote: > There is a race condition in all versions of the IDE code that I've > looked at including 2.4.18 and 2.4.21-pre3. Basically on an SMP system > if mutiple IDE channels are on the same interrupt and 1 channel sends > has an interrupt pending on 1 processor while the other processor is > calling ide_set_handler, then the interrupt can be mistaken for command > completion on both channels, and a command can be completed before it is > even issued.
Thanks Ross. I'll go over this in some detail. - 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/
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