Re: [Bug 1412] Copy from USB1 CF/SM reader stalls, no actualcontent is read (only directory structure)

From: Nicolas Mailhot
Date: Fri Nov 07 2003 - 19:36:44 EST

Le ven 07/11/2003 à 09:24, Jens Axboe a écrit :
> On Wed, Nov 05 2003, Alan Stern wrote:

> > In any case, it quite likely _does_ point to a driver bug. But since
> > sddr09_read_data() was handed this sg entry and didn't change it, if there
> > is such a bug it must lie in a higher-level driver. Maybe the scsi layer,
> > maybe the block layer, maybe the memory-management system, maybe the file
> > system. That was my original point.
> Well, the sg entry looks perfectly valid. And that was my original
> point :-). And that is why I said it looks like a driver bug, not in
> upper layers. How much memory did the system that crashed have? If the
> system has highmem, try testing with scsi_calculate_bounce_limit()
> unconditionally returning BLK_BOUNCE_HIGH.

The system has 1 GiB of memory, ie just enough to make stuff like
radeonfb fail


Nicolas Mailhot

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