FreeBSD Bugzilla – Attachment 17619 Details for
Bug 31935
FAQ: AIC7xxx termination
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[patch]
file.diff
file.diff (text/plain), 1.50 KB, created by
Michael W Lucas
on 2001-11-12 20:10:01 UTC
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file.diff
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Creator:
Michael W Lucas
Created:
2001-11-12 20:10:01 UTC
Size:
1.50 KB
patch
obsolete
>*** en_US.ISO8859-1/books/faq/book.sgml-dist Mon Nov 12 14:26:43 2001 >--- en_US.ISO8859-1/books/faq/book.sgml Mon Nov 12 15:02:07 2001 >*************** >*** 3913,3918 **** >--- 3913,3941 ---- > </qandaentry> > > <qandaentry> >+ <question id="aci0-illegal-cable"> >+ <para>When I boot my system, I get the error >+ <errorname>ahc0: illegal cable configuration</errorname>. >+ My cabling is correct. What's going on?</para> >+ </question> >+ >+ <answer> >+ <para>Your motherboard lacks the external logic to support >+ automatic termination. Switch your SCSI BIOS to specify >+ the correct termination for your configuration rather >+ than automatic termination. The AIC7XXX driver cannot >+ determine if the external logic for cable detection (and >+ thus auto-termination) is available. The driver simply >+ assumes that this support must exist if the configuration >+ contained in the serial EEPROM is set to "automatic >+ termination". Without the external cable detection logic >+ the driver will often configure termination incorrectly, >+ which can compromise the reliability of the SCSI >+ bus.</para> >+ </answer> >+ </qandaentry> >+ >+ <qandaentry> > <question id="mail-loopback"> > <para>Why does Sendmail give me an error reading > <quote><errorname>mail loops back to
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bug 31935
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