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<TITLE>sane-devel: Re: SCSI or Scanner???</TITLE>
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<H1>Re: SCSI or Scanner???</H1>
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<STRONG>From:</STRONG> Douglas Gilbert (<A HREF="mailto:dgilbert@interlog.com?Subject=Re:%20SCSI%20or%20Scanner???&In-Reply-To=&lt;39DAA6AB.ADF96FEF@interlog.com&gt;"><EM>dgilbert@interlog.com</EM></A>)<BR>
<STRONG>Date:</STRONG> Tue Oct 03 2000 - 20:40:27 PDT
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Henning Meier-Geinitz wrote:
<BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Hi,
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; On Mon, Oct 02, 2000 at 10:20:29PM +0200, Martin wrote:
</EM><BR>
<EM>&gt; &gt; # scanimage -d mustek:/dev/sge
</EM><BR>
<EM>&gt; &gt; Bad segment list supplied to aha1542.c (1, 0)
</EM><BR>
<EM>&gt; &gt; 0: c07b8000 1 0
</EM><BR>
<EM>&gt; &gt; cptr c02c7000: 00 00 00 10 00 00 00 a0 7d c0 00 00 00 00
</EM><BR>
<EM>&gt; &gt; 00 10 00 00 &lt;0&gt;
</EM><BR>
<EM>&gt; &gt; Kernel panic: Foooooooood fight!
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Try to limit the SCSI buffer size to 32kb. There was a problem in the
</EM><BR>
<EM>&gt; driver(s) for some Adaptec controllers but I thought it's fixed in newer
</EM><BR>
<EM>&gt; kernels. With newer Mustek backends (e.g. from SANE 1.0.3) you can just use
</EM><BR>
<EM>&gt; &quot;option buffersize 32&quot; in mustek.conf after the definition of your scanner.
</EM><BR>
<EM>&gt; See also README.linux (from SANE 1.0.3) and
</EM><BR>
<EM>&gt; <A HREF="http://hmg.home.pages.de/sane/trouble.html">http://hmg.home.pages.de/sane/trouble.html</A>
</EM><BR>
<P>Yes, it was fixed in sg version 2.1.38 found in lk 2.2.16 .
<BR>
The problem occurred in lk 2.2.14 + 2.2.15 but only became
<BR>
apparent when SANE increased the default SCSI buffer size
<BR>
beyond 32 KB (in SANE 1.0.3, I think). This problem
<BR>
only effects the aha1542 driver. Also note that just
<BR>
because a distribution calls a kernel 2.2.16 (for example),
<BR>
it doesn't necessarily mean that it is; look in file
<BR>
/usr/src/linux/include/scsi/sg.h to see what sg driver
<BR>
version is being used.
<BR>
<P>Doug Gilbert
<BR>
<P><PRE>
--
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