On Fri, Aug 02 2002, Marcin Dalecki wrote:
> U?ytkownik Stephen Lord napisa?:
> >In 2.5.30 I started getting these warning messages out ide during
> >the mount of an XFS filesystem:
> >
> >ide-dma: received 1 phys segments, build 2
> >
> >Can anyone translate that into English please.
>
> It can be found in pcidma.c.
> It is repoting that we have one physical segment needed by
> the request in question but the sctter gather list allocation
> needed to break it up for mapping in two.
You don't seem to realise that this is a BUG (somewhere, could even be
in the generic mapping functions)! blk_rq_map_sg() must never map a
request to more entries that rq->nr_segments, that's just very wrong.
That's why I'm suspecting the recent pcidma changes. Just a feeling, I
have not looked at them.
-- Jens Axboe- 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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