Very Computer

Aug 20 22:15:05 micron kernel: sym53c875-0-<4,0>:sync msg in: 1-3-1-c-f
Aug 20 22:15:05 micron kernel: sym53c875-0-<4,0>: sync: per=12 scnt=0x90
scnt 14=0x0 ofs=15 fak=0 chg=0
Aug 20 22:15:05 micron kernel: sym53c875-0-<4,0>: sync msgout: 1-3-c-10
Aug 20 22:15:05 micron kernel: Device not ready.  Make sure there is a
disc in the drive.

These messages repeat over and over until I put CDs in both drives.
Putting a CD in only 1 drive does not stop the thrashing.  Also, putting
a music CD in my CD-ROM drive (ID 3) does not stop the thrashing, even
with a CD in my CD-RW Drive (ID 4).  I do not have this problem with my
laptop or my other desktop system (also SCSI but with only 1
CD-ROM Drive); these systems are also running RH 7.1.  Hardware is as
follows:

dual-PPro 200MHz
Tekram DC390U UltraSCSI Controller
Plextor UltraPlex UltraSCSI 32x CD-ROM
Yamaha 8424 UltraSCSI CD-RW Drive

I did not have this problem with other distributions like Slackware.
However, I found Slackware a little over my head, so I would prefer to
get RH 7.1 working.  Mandrake is troublesome working with WordPerfect 8,
so I am trying to avoid this distribution as well.  Any suggestions on
how to solve this problem?  Besides continuing to place CDs in both
Drives :-)

Daniel

Quote:> I have a strange problem with Red Hat 7.1 running on an x86 box.  I have
> a SCSI system with SCSI CD-ROM and CD-RW Drives.  If I do not place CDs
> in these drives, then the hard drive starts to thrash until I do (I
> waited 20 minutes just to see if it would stop.  It didn't.).  I checked
> "/var/log/messages", which repeated the following messages while the
> CD-ROM/CD-RW Drives were empty and the hard drive was thrashing:
> Aug 20 22:15:05 micron kernel: sym53c875-0-<4,0>:sync msg in: 1-3-1-c-f
> Aug 20 22:15:05 micron kernel: sym53c875-0-<4,0>: sync: per=12 scnt=0x90
> scnt 14=0x0 ofs=15 fak=0 chg=0
> Aug 20 22:15:05 micron kernel: sym53c875-0-<4,0>: sync msgout: 1-3-c-10
> Aug 20 22:15:05 micron kernel: Device not ready.  Make sure there is a
> disc in the drive.

Quote:> These messages repeat over and over until I put CDs in both drives.
> Putting a CD in only 1 drive does not stop the thrashing.  Also, putting
> a music CD in my CD-ROM drive (ID 3) does not stop the thrashing, even
> with a CD in my CD-RW Drive (ID 4).  I do not have this problem with my
> laptop or my other desktop system (also SCSI but with only 1
> CD-ROM Drive); these systems are also running RH 7.1.  Hardware is as
> follows:
> dual-PPro 200MHz
> Tekram DC390U UltraSCSI Controller
> Plextor UltraPlex UltraSCSI 32x CD-ROM
> Yamaha 8424 UltraSCSI CD-RW Drive
> I did not have this problem with other distributions like Slackware.
> However, I found Slackware a little over my head, so I would prefer to
> get RH 7.1 working.  Mandrake is troublesome working with WordPerfect 8,
> so I am trying to avoid this distribution as well.  Any suggestions on
> how to solve this problem?  Besides continuing to place CDs in both
> Drives :-)

/dev/scd0               /mnt/cdrom      iso9660 noauto,owner,kudzu,ro   0 0
/dev/scd1               /mnt/cdrom1     iso9660 noauto,owner,kudzu,rw   0 0

My "/etc/mtab" looks like this

automount(pid759) /misc autofs rw,fd=5,pgrp=759,minproto=2,maxproto=3 0 0
/dev/scd0 /mnt/cdrom iso9660 ro,nosuid,nodev,user=Dan 0 0
/dev/scd1 /mnt/cdrom1 iso9660 ro,nosuid,nodev,user=Dan 0 0

Any other suggestions?  :-)

Daniel

Quote:> Thanks for helping.  However, my "/etc/fstab" does have the "noauto" tab set.
> Here are the relevant lines:
> /dev/scd0               /mnt/cdrom      iso9660 noauto,owner,kudzu,ro   0 0
> /dev/scd1               /mnt/cdrom1     iso9660 noauto,owner,kudzu,rw   0 0
> My "/etc/mtab" looks like this
> automount(pid759) /misc autofs rw,fd=5,pgrp=759,minproto=2,maxproto=3 0 0
> /dev/scd0 /mnt/cdrom iso9660 ro,nosuid,nodev,user=Dan 0 0
> /dev/scd1 /mnt/cdrom1 iso9660 ro,nosuid,nodev,user=Dan 0 0
> Any other suggestions?  :-)

I grepped the man page for fstab for the option "kudzu" and didn't find it.
It isn't in the man page for the "mount" command either.  What is the reason
for setting the option "kudzu" in /etc/fstab?  Is it set for any other
devices?  Does it have a configuration file you can edit to make it keep its
kudzu-pickin' hands off your CD drives?  What happens if you excise it from
the two lines above?  Do your log files show anything awkward or untoward
relating to your CD drives?  Finally, is there a reason you're using "owner"
instead of "user" in the options field?

#Exec=/bin/bash -c "(ps -u $USER -ocomm=|grep autorun ) || if test -f
/var/lock/console/\"$USER\" -a -x /usr/bin/autorun; then /usr/bin/autorun -l
--interval=1000 --cdplayer=/usr/bin/kscd & fi"

I logged out and restarted KDE and all was well; no thrashing.  Thanks for
suggesting that the problem was automount; this got me looking in the right
direction.

Daniel

Quote:> I may have solved this problem, I hope :-)  I went into ".kde/Autostart" and
> commented out the following line:
> #Exec=/bin/bash -c "(ps -u $USER -ocomm=|grep autorun ) || if test -f
> /var/lock/console/\"$USER\" -a -x /usr/bin/autorun; then /usr/bin/autorun -l
> --interval=1000 --cdplayer=/usr/bin/kscd & fi"
> I logged out and restarted KDE and all was well; no thrashing.  Thanks for
> suggesting that the problem was automount; this got me looking in the right
> direction.