Date: Fri, 5 Feb 1999 04:13:59 +1100 From: jonathan michaels <jon@caamora.com.au> To: FreeBSD questions mailinglist <freebsd-questions@FreeBSD.ORG> Subject: Re: FreeBSD (2.2.8) CD-ROM vulnerability Message-ID: <19990205041359.A18514@caamora.com.au> In-Reply-To: <Pine.LNX.3.96.990204115540.18915A-100000@linux.intranet.netvisor.hu>; from Sebestyen Zoltan on Thu, Feb 04, 1999 at 12:04:36PM %2B0100 References: <Pine.LNX.3.96.990204115540.18915A-100000@linux.intranet.netvisor.hu>
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On Thu, Feb 04, 1999 at 12:04:36PM +0100, Sebestyen Zoltan wrote: > I've just tired to mount a DEC OSF/1 install-CD on my UltraPleX SCSI CDROM > (Tried both cd9960 and ufs filesystems). I didn't succeed and got the > following messages: > > Feb 4 11:37:14 nv4 /kernel: cd1(ahc0:3:0): NOT READY asc:3a,1 > Feb 4 11:37:14 nv4 /kernel: cd1(ahc0:3:0): NOT READY asc:3a,1 > Feb 4 11:37:41 nv4 /kernel: cd0(ahc0:2:0): data overrun of 16777215 bytes detected in Data-In phase. Tag == 0x1. Forcing a retry. > Feb 4 11:37:41 nv4 /kernel: cd0(ahc0:2:0): Have seen Data Phase. Length = 1024 . NumSGs = 1. > Feb 4 11:37:41 nv4 /kernel: sg[0] - Addr 0xe40400 : Length 1024 > > However, there were no problems when I 'cat'-ted the contents of the CD > into /dev/null. (Just to see if there are any reading problems.) > A minute later the machine resetted, and I'm almost sure that it > happened because of the problems I mentioned above. > Do you have some idea what happened and what do these messages mean? I > wonder why can some problem with a CD (both IDE and SCSI) bring FreeBSD > down on his knees so easily. sorry no solution, just adding to the observable data .. i saw somting like this while trying to read teh walnut creek freebsd v2.2.8-release cdrom specificily teh 2nd cd .. the live filesystem cd. several directoroies had directory blocksises of 20k and one was up their at 60k blocks. after posting to -questions my observation, well i asked cdrom.com as well i have yet to get an answer .. seems thier tech support is slow, but them again it has always been slow as near as i can tell. maybe you might have better luck .. not so grin. yes, every machine i put this cdrom into and tried to read teh extraordinarily large directories woule resuult in an imediate system reboot. four machine (two very reliab;e i486dx33's, a pentium p5-133 and a newish pentium pro p6-180 .. none of these are overclocked) also several versions of freebsd produce teh same result, being freebsd v2.2.5-release and freebsd v2.2.7-release. all the filesystems are scsi, hostatadapters being adaptec 1542b's, a buslogic bt-958 (in 8 bit mode only) and an adaptec 2940uw with a 8 bit bus hard disk and a 16 bit bus hard disk. as for the cdroms they are all scsi and come from the reliable end of the nec and sony product range. i;ve also got a digital unix v4 licence and installation kit, it has several large documentation directories as well .. it also rebooted spontaniously. i wa also told my harware was rubbish at teh time .. seems to be a proclivite amongst the so called experts. if they don't understand someting its easy to bag teh hardware insted of offering intelligent options. anyway these have been my experiences . your milage may vary, if yo get a halfway sane soltion would you mind leting me know, please. regards jonathan -- =============================================================================== Jonathan Michaels PO Box 144, Rosebery, NSW 1445 Australia ===========================================================<jon@caamora.com.au> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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