> I *always* get the right result. So could this be a kernel problem instead
> of hardware problem?
Yes-No.........
> Also, if I do
> dd if=/dev/cdrom bs=1024 count=xxx | cmp - original.image
> it succeeds also always.
>
> Also strange is that some (maybe 20%) of CD-R disks work fine and give
> correct md5sum even if running md5sum in pipe.
>
> I have had never problems while using the CD-R disks normally mounted,
> except when I tried to set unmaskirq to on with hdparm, which gave lot of
> read errors.
Well if you give way your interrupts (figuratively speaking) I bet you get
a buffer underrun......
> This is Mitsumi CR2801TE cd-r drive, and I have tried really many of 2.0.x
And the core engin for a "CR2801TE" is ??
> kernels as well as 2.2.13 which all give the same result.
> The cd-r drive is in /dev/hdc, my hard disks are in /dev/hda and hdb and
> /dev/hdd is not attached to anything.
Since you never defined a chipset base or cpu class, you have mad any
guess impossible.
Cheers,
Andre Hedrick
The Linux IDE guy
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