[54] in linux-scsi channel archive
SCSI CD ROM drive no longer working... Linux 1.1.87
daemon@ATHENA.MIT.EDU (Kayvan Sylvan)
Tue Jan 31 09:49:34 1995
Date: Tue, 31 Jan 95 01:01 PST
To: linux-scsi@vger.rutgers.edu
From: Kayvan Sylvan <kayvan@sylvan.com>
This CD ROM drive (a SUN SCSI-2 drive that identifies itself as a SONY
CDU-8012) used to work perfectly under linux-1.1.65. It causes the
SCSI bus to hang when I try to use it under linux-1.1.87.
What changed?
Here's some relevant output from dmesg:
============================== begin dmesg output ==========================
<6>U14F0: PORT 0x340, BIOS 0xc8000, IRQ 11, DMA 6, SG 33, Mbox 16, CmdLun 2, C1.
<6>scsi0 : UltraStor 14F/34F rev. 1.13.00 by Dario_Ballabio@milano.europe.dg.com.
<6>scsi : 1 host.
<6> Vendor: MAXTOR Model: MXT-540SL !N Rev: JA6I
<6> Type: Direct-Access ANSI SCSI revision: 02
<6>Detected scsi disk sda at scsi0, id 0, lun 0
<6> Vendor: SONY Model: CD-ROM CDU-8012 Rev: 3.1a
<6> Type: CD-ROM ANSI SCSI revision: 02
<6>Detected scsi CD-ROM sr0 at scsi0, id 4, lun 0
<6>scsi : detected 1 SCSI cdrom 1 SCSI disk total.
<6>SCSI Hardware sector size is 512 bytes on device sda
<6>Memory: 15088k/16384k available (660k kernel code, 384k reserved, 252k data)
[...]
<6>Linux version 1.1.87 (root@satyr) (gcc version 2.6.2) #2 Mon Jan 30 22:58:04 PST 1995
<6>Partition check:
<6> sda: sda1 sda2
<6> hda: WD1007V, 643MB w/32KB Cache, CHS=1656/15/53, MaxMult=1
<6> hda: hda1 hda2 hda3 < hda5 hda6 hda7 >
<6>VFS: Mounted root (ext2 filesystem) readonly.
<6>Adding Swap: 16684k swap-space
<5>lp1: warning: obsolete ioctl 0x5 (perhaps you need a new tunelp)
<5>lp1: warning: obsolete ioctl 0x6 (perhaps you need a new tunelp)
============================== end dmesg output ==========================
As you can see, the CD ROM is detected. I'm using the Ultrastor 14F
SCSI controller.
When I go to mount it (by "mount -r -t iso9660 /dev/scd0 /cdrom") the
machine seems to hang a while and then starts to spit out messages
about locked mboxes from the U14F driver. The messages loop forever
and the only recourse is to reset the machine.
Anyone have any ideas? Do you need more details?
---Kayvan
"The trust and respect of a child is an honor to be earned, not demanded."
Kayvan Sylvan | Sylvan Associates | Proud Dad of:
kayvan@Sylvan.COM | Training, Consulting | Katherine Yelena (8/8/89)
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