Re: lots of c2scan errors without ide-scsi
On Tue, Sep 28, 2004 at 07:23:57PM +0200, Joerg Schilling wrote:
> > After reversing this patch, the c2scan works as expected.
> This is most unlikely.
> The patch should make the linux kernel behave as documented.
> Readcd just uses the standard code in libscg that fails completely
> if you hit the cause fot this patch as libscg just thinks that the driver
> is broken and does not continue with the old code.
Ok, I'll put "reading the libscg source" on my TODO list. ;-)
> Try to experiment with readcd's ts= option and make a bug report against
> the Linux kernel.... It looks like there is a DMA implementation bug in
> the Linux kernel if the DMA size has effects on the read data.
Up to ts=8k, it works. Larger values lead to increased
error rate up 128k. After that, the error rate stays constant.
Is there no way for applications to determine the maxmium value for the