Messages in this thread | | | Subject | Re: linux-2.5.6 scsi DMA mapping and compilation fixes (not yet working) | Date | Wed, 13 Mar 2002 16:51:49 +0000 (GMT) | From | Alan Cox <> |
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> I believe changes to NCR53c80 were recently reverted back because > these "fixes" lead to massive data corruption. It is preferable > that the driver remains unbuildable, and therefore doesn't cause > data corruption than to be buildable and case data corruption.
Someone "fixed" the 2.5 one by just frobbing randomly with the io_request_lock without noticing its not always used per queue in the driver (study the host list code - and dont think you can just clean that up by using SHIRQ - that wont help on some non x86 stuff). I fed Dave Jones the 2.4 stuff where the locking is fixed (tho using io_request_lock) and actually works SMP.
Dave then I suspect fed it to Linus - 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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