Date: Thu, 31 Oct 1996 15:54:25 +1100 (EST) From: Mike McGaughey <mmcg@heraclitus.cs.monash.edu.au> To: FreeBSD-gnats-submit@freebsd.org Subject: i386/1931: Mitsumi CDrom works well under 2.1.x, fails under 2.2-SNAP Message-ID: <199610310454.PAA06157@heraclitus.cs.monash.edu.au> Resent-Message-ID: <199610310500.VAA26216@freefall.freebsd.org>
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>Number: 1931
>Category: i386
>Synopsis: Mitsumi CDrom works well under 2.1.x, fails under 2.2-SNAP
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Oct 30 21:00:01 PST 1996
>Last-Modified:
>Originator: Mike McGaughey
>Organization:
Monash Uni
>Release: FreeBSD 2.2-961014-SNAP
>Environment:
486 DX/33, 20M, ISA bus on conservative settings, cache, wait
states, etc on conservative settings, SMC elite (8013) ether
card, 2xIDE drives. Never had any cache/memory/etc problems.
Mitsumi 2x CDrom (no model no, sorry, but can pull it apart and
look if you insist).
>Description:
Under 2.1.0-R and 2.1.5-R, the mitsumi CDrom runs perfectly.
Under 2.2-961014-SNAP, it struggles along with numerous read timeouts
and retries; short reads (i.e. of directories, etc) appear OK, longer
reads (of more than 15-20K) start failing. Degradation is *not*
graceful; once it has started missing reads, it appears to miss
more and more.
Timeouts, etc, in the source code for the two distributions are all
set to the same values.
NB: The severity and priority of this problem depend on your point
of view :)
>How-To-Repeat:
Install 2.2-961014-SNAP, then try to read a long file from CD. It is,
of course, possible that one needs precisely my machine to do so;
I haven't been able to convince any of my friends to try the SNAP,
and so cannot be sure.
>Fix:
Reinstall 2.1.5-R (via the ether card, since the CD won't work :)
Cheers,
Mike.
>Audit-Trail:
>Unformatted:
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