Date: Sun, 11 Apr 2010 10:36:19 +0200 From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@spoerlein.net> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-scsi@freebsd.org, Pavel Sukhoy <sukhoy@ripn.net>, Hans Petter Selasky <hselasky@c2i.net>, Markus Wild <m.wild@cybernet.ch>, freebsd-hackers@freebsd.org Subject: Re: virtual drive errors Message-ID: <20100411083618.GA57638@acme.spoerlein.net> In-Reply-To: <4BBCFE30.2010709@icyb.net.ua> References: <903d65bf1d5624b5208c588b21e679ea@ripn.net> <4BBCFE30.2010709@icyb.net.ua>
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On Thu, 08.04.2010 at 00:50:40 +0300, Andriy Gapon wrote: > Looking at cdcheckmedia and at the logged READ TOC (0x43) SCSI command errors > (as reported by Markus) I see the following problem. Even if cdsize() call at > the beginning of cdcheckmedia() succeeds, a subsequent failure of cdreadtoc() > throws us to 'bailout' label which is past the code that sets d_mediasize. > > I think that the following patch should help with this situation (and possibly > other cases with READ TOC problems): > > --- a/sys/cam/scsi/scsi_cd.c > +++ b/sys/cam/scsi/scsi_cd.c >[snip] This patch, much like the one in kern/138789 makes my external Plextor PX-755A drive successfully read "mastered" DVD media, i.e., the retail kind, not DVD-R/RW. So, please commit some version of this patch. Thanks! Regards, Uli
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