Date: Sat, 4 Jan 1997 04:33:50 -0800 (PST) From: John-Mark Gurney <jmg@nike.efn.org> To: Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de> Cc: FreeBSD SCSI list <freebsd-scsi@FreeBSD.org> Subject: Re: Ideas on CD changers sought Message-ID: <Pine.NEB.3.95.970104042832.301D-100000@hydrogen.nike.efn.org> In-Reply-To: <Mutt.19970104124751.j@uriah.heep.sax.de>
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On Sat, 4 Jan 1997, J Wunsch wrote: > As I wrote: > > > > (bt0:3:1): "unknown unknown ????" type 0 fixed SCSI 0 > > > sd2(bt0:3:1): Direct-Access > > > sd2(bt0:3:1): ILLEGAL REQUEST asc:24,0 Invalid field in CDB > > > > That's the consequence out of assuming `direct access' from the null > > inquiry. I think this should be killed, the device should be assigned > > to the `uk' driver (unknown SCSI device) in case it failed to deliver > > inquiry data. It makes things only worse this way. > > > > (The docking station of our Toshiba T5100 notebook contains an AIC7850 > > and an unknown CD drive. Since it times out during inquiry, the > > driver also assumes it to be an `sd0', which finally causes the kernel > > to panic.) > > Since you're just in experimenting :), please try this. It should > make the misprobed devices (LUNs in your case) going to the uk driver. > If nobody objects, i would commit that change, including the 2.2 > branch. I feel much safer with it than with the current scenario of > assigning those devices to the `sd' driver (which is IMHO an artifact > only of T_DIRECT having the value 0). [patch deleted] I'm assuming I should combine it with the previous patch, correct? I'm ifdef'ing the code so my `production' kernel won't be affected... so I'm going to be able to turn these hacks on and off for testing... John-Mark gurney_j@efn.org http://resnet.uoregon.edu/~gurney_j/ Modem/FAX: (541) 683-6954 (FreeBSD Box) Live in Peace, destroy Micro$oft, support free software, run FreeBSD (unix)
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