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Bug 85103 - (IDE SERVERWORKS)On ServerWorks IDE chipset, kernel-BOOT gives bogus /proc/sys/dev/cdrom/info output
Summary: (IDE SERVERWORKS)On ServerWorks IDE chipset, kernel-BOOT gives bogus /proc/sy...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 9
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks: 79579 85104 CambridgeTarget
TreeView+ depends on / blocked
 
Reported: 2003-02-25 18:42 UTC by Michael Fulbright
Modified: 2007-04-18 16:51 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2004-09-30 15:40:34 UTC
Embargoed:

Attachments (Terms of Use)

Description Michael Fulbright 2003-02-25 18:42:06 UTC 
The chipset on this Compaq machine is:

00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 92)

In the boot kernel (2.4.20-4smp-BOOT) the proc entry /proc/sys/dev/cdrom/info
returns bogus information.  The system has a CD burner as /dev/hda and a DVD-ROM
drive as /dev/hdb.  In the normal kernel we get:

CD-ROM information, Id: cdrom.c 3.12 2000/10/18
 
drive name:             sr1     sr0
drive speed:            40      32
drive # of slots:       1       1
Can close tray:         1       1
Can open tray:          1       1
Can lock tray:          1       1
Can change speed:       1       1
Can select disk:        0       0
Can read multisession:  1       1
Can read MCN:           1       1
Reports media changed:  1       1
Can play audio:         1       1
Can write CD-R:         0       1
Can write CD-RW:        0       1
Can read DVD:           1       0
Can write DVD-R:        0       0
Can write DVD-RAM:      0       0

In the -BOOT kernel we kernel:

CD-ROM information, Id: cdrom.c 3.12 2000/10/18
 
drive name:             sr1     sr0
drive speed:            116     116
drive # of slots:       1       1
Can close tray:         1       1
Can open tray:          1       1
Can lock tray:          1       1
Can change speed:       1       1
Can select disk:        0       0
Can read multisession:  1       1
Can read MCN:           1       1
Reports media changed:  1       1
Can play audio:         1       1
Can write CD-R:         1       1
Can write CD-RW:        1       1
Can read DVD:           1       1
Can write DVD-R:        1       1
Can write DVD-RAM:      1       1

Not only are the speeds silly, but it indicates both can burn CD/DVDs. This
causes us to indicate both should use ide-scsi in the grub.conf, which is incorrect.
Comment 1 Alan Cox 2003-02-25 18:52:33 UTC 
Is this specific to serverworks or does that drive combo fail with non serverworks ?

If you boot an installed box with init=/bin/sh then mount /proc by hand and
check the
info (you may need to modprobe the cd drivers obviously) is it also wrong ?
Comment 2 Jeremy Katz 2003-02-26 16:29:35 UTC 
To add what I said on IRC yesterday evening here...

1) Boot UP kernel to init=/bin/bash, mount /proc, modprobe ide-cd --> everything
is fine
2) Boot BOTO kernel to init=/bin/bash, mount /proc, you get the bizarre
incorrect numbers

The main difference between the two afaik is that ide-cd is built-in to the BOOT
kernel as opposed to modular everywhere else.
Comment 3 Alan Cox 2003-06-09 13:47:45 UTC 
Was this a DL360 ?
Comment 4 Michael Fulbright 2003-08-18 21:08:57 UTC 
CC'ing jeremy - was it a DL360?
Comment 5 Jeremy Katz 2003-08-18 21:19:35 UTC 
ML350
Comment 6 Bugzilla owner 2004-09-30 15:40:34 UTC 
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
persists.

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/
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