sane-project-website/old-archive/2000-07/0045.html

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<TITLE>sane-devel: Re: sane-1.0.2 broken with SMP support under linux ?</TITLE>
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<H1>Re: sane-1.0.2 broken with SMP support under linux ?</H1>
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<STRONG>From:</STRONG> Douglas Gilbert (<A HREF="mailto:dgilbert@interlog.com?Subject=Re:%20sane-1.0.2%20broken%20with%20SMP%20support%20under%20linux%20?&In-Reply-To=&lt;3967E782.CBEFD464@interlog.com&gt;"><EM>dgilbert@interlog.com</EM></A>)<BR>
<STRONG>Date:</STRONG> Sat Jul 08 2000 - 19:46:26 PDT
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&quot;Bjoern A. Zeeb&quot; wrote:
<BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Hi,
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; I just installed a second prozessor and turned SMP support on
</EM><BR>
<EM>&gt; in my linux-2.2.16. Since then (x)scanimage refusing to work.
</EM><BR>
<EM>&gt; gimp and other stuff just running fine++;-)
</EM><BR>
<EM>&gt; (x)scanimage seem to go in an endless loop not consuming a lot
</EM><BR>
<EM>&gt; of resources but nearly hanging X and any consoles or even network
</EM><BR>
<EM>&gt; connections very slow then.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Booting an old non-SMP kernel p.ex. 2.2.9 and things start
</EM><BR>
<EM>&gt; working again. (sorry, I do not yet have a working 2.2.16 nonSMP)
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Is this a known problem with SMP or with 2.2.16 ?
</EM><BR>
<EM>&gt; Did anyone see same problems ? Is there a solution besides booting my
</EM><BR>
<EM>&gt; old kernel every time I wanna scan ? (I would like to uptime that
</EM><BR>
<EM>&gt; machine)
</EM><BR>
<P>This turned out to be a problem with the sym53c416
<BR>
driver and sg in lk 2.2.16 , not a problem with SMP.
<BR>
Basically the sg driver in lk 2.2.16 breaks the
<BR>
sym53c416 driver. This problem is not found prior to
<BR>
lk 2.2.16 and will be fixed in lk 2.2.17 . For those
<BR>
who need a patch see the table in this page:
<BR>
<A HREF="http://www.torque.net/sg">http://www.torque.net/sg</A>
<BR>
<P>Doug Gilbert
<BR>
<P><PRE>
--
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