Date: Tue, 3 Nov 1998 10:30:01 -0800 (PST) From: "Kenneth D. Merry" <ken@plutotech.com> To: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/8555: boot panic with SONY SCSI CD-ROM CDU625-S 1.0r hooked Message-ID: <199811031830.KAA29063@freefall.freebsd.org>
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The following reply was made to PR kern/8555; it has been noted by GNATS.
From: "Kenneth D. Merry" <ken@plutotech.com>
To: ilg@Romania.EU.net
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: kern/8555: boot panic with SONY SCSI CD-ROM CDU625-S 1.0r hooked
Date: Tue, 3 Nov 1998 11:20:51 -0700 (MST)
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ilg@Romania.EU.net wrote...
>
> >Number: 8555
> >Category: kern
> >Synopsis: boot panic with SONY SCSI CD-ROM CDU625-S 1.0r hooked
> >Confidential: no
> >Severity: serious
> >Priority: medium
> >Responsible: freebsd-bugs
> >State: open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class: sw-bug
> >Submitter-Id: current-users
> >Arrival-Date: Tue Nov 3 07:50:00 PST 1998
> >Last-Modified:
> >Originator: Liviu Ionescu
> >Organization:
> EUnet Romania
> >Release: 3.0-RELEASE
> >Environment:
> FreeBSD boca.ro.eu.net 3.0-RELEASE FreeBSD 3.0-RELEASE #1: Sun Nov 1 17:06:33 EET 1998 ilg@boca.ro.eu.net:/usr/src/sys/compile/ILGB i386
> >Description:
> hooking one SONY SCSI CD-ROM CDU625-S 1.0r on the 8-bit cable of the secondary SCSI bus of an Intel DK440LX motherboard generates a panic while booting. the problem apears both for the customized kernel and the generic one. inserting a CD in the unit d oes not help.
>
> probably not related to the problem, but display of "target 3 using asynchronous transfers" and next messages is intersparsed with something like "Considering MFS root f/s."
>
> captures of serial console output are attached.
>
> if you think I can do anything to further diagnose this problem, please let me know.
[ ... ]
> pass0 at ahc0 bus 0 target 0 lun 0
> pass0: <SEAGATE ST39102LW 0005> Fixed Direct Access SCSI2 device
> pass0: Serial Number NJ12634600002903H0A1
> pass0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing Enabled
> pass1 at ahc1 bus 0 target 3 lun 0
> pass1: <SONY CD-ROM CDU625-S 1.0r> Removable CD-ROM SCSI2 device
> pass1: 3.300MB/s transfers
> pass2 at ahc1 bus 0 target 3 lun 1
> pass2: < > Fixed Direct Access SCSI0 device
> pass2: 3.300MB/s transfers
[ ... ]
> cd0: <SONY CD-ROM CDU625-S 1.0r> Removable CD-ROM SCSI2 device
> cd0: 3.300MB/s transfers
> cd0: Attempt to query device size failed: NOT READY, Medium not present
[ ... ]
> (da1:ahc1:0:3:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0
> (da1:ahc1:0:3:1): ILLEGAL REQUEST asc:25,0
> (da1:ahc1:0:3:1): Logical unit not supported
> (da1:ahc1:0:3:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0
> (da1:ahc1:0:3:1): ILLEGAL REQUEST asc:25,0
> (da1:ahc1:0:3:1): Logical unit not supported
> (da1:ahc1:0:3:1): fatal error, failed to attach to device(da1:ahc1:0:3:1): removing device entry
>
>
> Fatal trap 12: page fault while in kernel mode
> mp_lock = 01000003; cpuid = 1; lapic.id = 00000000
> fault virtual address = 0x20d50
> fault code = supervisor read, page not present
> instruction pointer = 0x8:0xf0104f95
> stack pointer = 0x10:0xf02e0bb8
> frame pointer = 0x10:0xf02e0bc8
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def32 1, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 0 (swapper)
> interrupt mask = net tty cam <- SMP: XXX
> kernel: type 12 trap, code=0
> Stopped at _xpt_release_ccb+0x55: movl 0x30(%eax),%eax
Thanks for the detailed information. I believe this problem (the panic, at
least) has been fixed in FreeBSD-current.
A lot of the Sony CDROM drives don't behave properly when they are probed
on multiple LUNs.
Try applying the attached patch to src/sys/cam/cam_xpt.c, and see if it
fixes your problem. It disables multi-lun probing for most every Sony
CDROM drive, since as far as I can tell, most of them behave badly.
The patch may or may not apply cleanly to your version of cam_xpt.c, but at
least you can get an idea of the quirk entry you need to disable multi-LUN
probing for your CDROM drive.
Ken
--
Kenneth Merry
ken@plutotech.com
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==== //depot/cam/sys/cam/cam_xpt.c#173 - /usr/home/ken/perforce/cam/sys/cam/cam_xpt.c ====
*** /tmp/tmp.7907.0 Tue Nov 3 11:12:25 1998
--- /usr/home/ken/perforce/cam/sys/cam/cam_xpt.c Tue Nov 3 11:04:48 1998
***************
*** 339,350 ****
},
{
/*
! * This drive doesn't like multiple LUN probing.
! * Verified by: Jean-Marc Zucconi <jmz@FreeBSD.ORG>
*/
{
T_CDROM, SIP_MEDIA_REMOVABLE, sony,
! "CD-ROM CDU-80*", "*"
},
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
},
--- 339,349 ----
},
{
/*
! * Many Sony CDROM drives don't like multi-LUN probing.
*/
{
T_CDROM, SIP_MEDIA_REMOVABLE, sony,
! "CD-ROM CDU*", "*"
},
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
},
--ELM910117251-12016-0_--
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