[6187] in linux-scsi channel archive
CD does not allow concurrent access
daemon@ATHENA.MIT.EDU (Kurt Garloff)
Fri Mar 26 04:35:27 1999
Date: Fri, 26 Mar 1999 08:30:51 +0100
From: Kurt Garloff <K.Garloff@ping.de>
To: Linux SCSI list <linux-scsi@vger.rutgers.edu>
Mail-Followup-To: Linux SCSI list <linux-scsi@vger.rutgers.edu>
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Hi there,
is the following a known problem?
For copying a CD, I made an image by just using
cat /dev/sr0 >cd.img
In the meantime, I wanted to inspect the CD. Mounting and accessing the CD
caused the cat command to abort with I/O error. Doing the cat again without
any concurrent access to the CD, it worked.
Concurrent access to other devices on the SCSI bus does not harm.
This is bad behaviour IMHO.
Details: Linux-2.2.2-ac7, SMP, ncr53c8xx (Tekram DC390F), Plextor Px32Ts
More details on request.
--=20
Dipl.Phys. Kurt Garloff <kurt@garloff.de> [Dortmund, FRG]
Plasma physics, high perf. computing [Linux-ix86,-axp, DUX]
PGP key: see mailheader / key servers [Linux SCSI driver: DC390]
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