Date: Thu, 10 Sep 1998 10:24:37 +0200 (MET DST) From: "Wilhelm B. Kloke" <wb@yorikke.arb-phys.uni-dortmund.de> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/7880: mount_cd9660 incorrect on multitrack CD-R Message-ID: <199809100824.KAA23955@yorikke.arb-phys.uni-dortmund.de>
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>Number: 7880 >Category: kern >Synopsis: mount_cd9660 incorrect on multitrack CD-R >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Sep 10 01:30:00 PDT 1998 >Last-Modified: >Originator: Wilhelm B. Kloke >Organization: Inst f Arbeitsphysiologie Uni Dortmund >Release: FreeBSD 3.0-CURRENT i386 >Environment: As noted. Probably same in 2.2.x also. >Description: When I tried to mount a Kodak Photo CD, mount_cd9660 failed with a bad message (``invalid argument''). I traced this fault down to the following. The disk was written with 7 tracks, in one session. It was readable on Windows. It was also mountable when I added -s 0 option. >How-To-Repeat: Easily. >Fix: I looked into the source /sys/isofs/cd9660/cd9660_vfsops.c. There is a comment: > /* > * Try to find the start of the last data track on this CD-ROM. This > * is used to mount the last session of a multi-session CD. Bail out > * and return 0 if we fail, this is always a safe bet. > */ This is not the correct algorithm. The first track of the last session is needed. >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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