Messages in this thread | | | Date | Mon, 04 Jun 2001 18:29:22 +0100 | From | Neil Conway <> | Subject | Re: IDE corruption, 2.2, VIA chipset in PIO mode |
| |
Alan Cox wrote: > > > Used for a while, copied about 7gigs onto it. Then got lots of BadCRC > > errors when reading from disk (from dma_intr). Decided to disable DMA > > as a result of this... > > Cable errors. Disabling DMA also disabled error checking and correction
Jeez. Crappity, crappity, crap. Embarrassing mistake of the year.
I managed to convince myself that the cable couldn't possibly be responsible, because we got corruption even when using UDMA-33 (which protects from cable faults). Somewhere in my logic I obviously lost the plot, and forgot that I switched DMA off *before* seeing corruption.
Sigh. Ah, I think I see a nice brown bag, in a nice deep hole.
Thank you for gently pointing out the error of my ways ;-)
Neil - 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/
| |