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Subjectscsi errors on CD change
Date
Hi All,
(Please CC me with reply , 'cause i am not a member of the list)

I got the following situation:

I installed kernel 2.4.0-test5 (and patched it later to test6 which didn't solve the problem). All works fine except the following:

I started without a cd inserted in /dec/scd0.

After starting the Gnome or KDE WM my system starts throwing huge amounts of the following messages to my /var/log/messages file:

Aug 21 23:23:00 target kernel: sym53c875E-0-<5,0>: sync msgout: 1-3-1-c-10.
Aug 21 23:23:00 target kernel: sym53c875E-0-<5,0>: sync msg in: 1-3-1-19-8.
Aug 21 23:23:00 target kernel: sym53c875E-0-<5,0>: sync: per=25 scntl3=0x30 scntl4=0x0 ofs=8 fak=0 chg=0.

This block is repeated constantly with exact the same content till i quit the WM.
I also see an occasional " VFS: Disk change detected on device sr(11,0)"

(Note: sym53c875E-0-<5,0> points to my Plextor (re)writer)

The second situation with the same thing:
0. started linux 2.4.0test6
1. mounted iso9660 software cdrom on /dev/scd0
2. started KDE
3. things stay normal, KDE filemanager starts, no problem
4. umount /dev/scd0 : no problem
5. eject -s /dev/scd0 : Bingo, messages all over the place.
6. inserted a music cdrom : errors stopped. KDE cdplayer starts.

So apparantly the kernel looses track of the status of my CD-RW drive.

I hope anyone can help me out here.... please let me know if more info is required.

Regards,
Sander Dol


Below my system configuration:

-----------------
SCSI peripherals:
-----------------

Attached devices:
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: FUJITSU Model: MAB3091S SUN9.0G Rev: 1505
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: PLEXTOR Model: CD-R PX-W4220T Rev: 1.04
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: EXABYTE Model: EXB-8505SMBANSH2 Rev: 07T0
Type: Sequential-Access ANSI SCSI revision: 02
General information:
Chip sym53c875E, device id 0xf, revision id 0x26
On PCI bus 0, device 15, function 0, IRQ 11
Synchronous period factor 12, max commands per lun 32
Debug flags 0x200, verbosity level 1

_______________
Processor info:
_______________
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 3
model name : Pentium II (Klamath)
stepping : 4
cpu MHz : 239.434238
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov mmx
bogomips : 476.77

(Motherboard: Abit LX6)

------------------
Linux (Redhat 6.2)
------------------
Linux version 2.4.0-test6 (root@target.thuis) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Tue Aug 22 22:34:29 CEST 2000
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