On Thu, 26 Jun 2003, abel deuring wrote: > Henrik Schmidt schrieb: > > I'm trying to use a Microtek ScanMaker III with Solaris 2.6 and the scg > > SCSI driver. I'm using sane-backends 1.0.12 with frontend 1.0.10. > > > > > Jun 25 13:08:25 cortex unix: WARNING: > > /iommu@f,e0000000/sbus@f,e0001000/espdma@f > > ,400000/esp@f,800000 (esp0):^M^M > > Jun 25 13:08:25 cortex unix: data transfer overrun: current esp state: > ^^^^^^^^^^^^^^^^^^^^^ > [...] > > Jun 25 13:08:25 cortex unix: esp: Cmd dump for Target 5 Lun > > 0:^M^M > > Jun 25 13:08:25 cortex unix: esp: cdblen=6, cdb=[ 0x8 0x0 > > 0x0 0x0 > > 0x91 0x0 ]^M^M > > That's a READ of just 0x91 (145) bytes; shouldn't cause any buffer > overflow, but it's an odd number of bytes. A long shot: It could be that > the SCG driver does not like to transfer an odd number of bytes. > > Matt and Henrik, I'm admittedly too lazy to look closer into the > Microtek backend, but I guess that it is trying to read a complete scan > line with one SCSI command. Would it be difficult to change this > behaviour to read an even number of bytes? > > Henrik, a test of my guess should not be too difficult: Just select a > scan window with an even number of horizontal pixels. (Or perhaps better > choose a multiple of 4 or 8 as the scan width, just in case that the SCG > driver or some other Solaris part insists on using the complete bus > width of 32 or 64 bit) >
I did test and get the same error with a very small 8x12 scan window. -- Henrik Schmidt Christian-Albrechts-Universitaet zu Kiel Institut fuer Informatik +49 (431) 880 75 - 50 Fax or 43 Phone Olshausenstr. 40 http://www.ks.informatik.uni-kiel.de 24098 Kiel, Germany email: [email protected]
