Bug 15057 - Mounting ls120: ide-floppy: hdc: I/O error
Summary: Mounting ls120: ide-floppy: hdc: I/O error
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel   
(Show other bugs)
Version: 7.1
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Arjan van de Ven
QA Contact:
Whiteboard: Florence Gold
Depends On:
TreeView+ depends on / blocked
Reported: 2000-08-01 20:23 UTC by giulioo
Modified: 2008-05-01 15:37 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2001-02-09 19:03:56 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description giulioo 2000-08-01 20:23:18 UTC
Pinstripe (or maybe it was b4) is the first rh beta which correctly sets 
up an entry for the ls120 in /etc/fstab.

So, please, go one step further and shut up the kernel when it outputs the

kernel:  hdc: unknown partition table
kernel:  hdc: unknown partition table
kernel:  hdc: unknown partition table

messages to the console when mounting an ls120 (with a file system on it).

Comment 1 giulioo 2000-08-18 16:06:55 UTC
Linuxconf in rc1 accesses the ls120 everytime you exit, so that everytime I 
see "hdc: unknown partition table" popping up over the last linuxconf screen.

Comment 2 Alan Cox 2000-09-16 22:43:44 UTC
--- drivers/block/genhd.c~	Fri Sep  1 13:32:19 2000
+++ drivers/block/genhd.c	Sat Sep 16 23:12:17 2000
@@ -1516,7 +1516,7 @@
 	char buf[MAX_DISKNAME_LEN];
 	if (first_time)
-		printk("Partition check:\n");
+		printk(KERN_INFO "Partition check:\n");
 	first_time = 0;
 	first_sector = hd->part[MINOR(dev)].start_sect;
@@ -1529,7 +1529,7 @@
-	printk(" %s:", disk_name(hd, MINOR(dev), buf));
+	printk(KERN_INFO " %s:", disk_name(hd, MINOR(dev), buf));
 	if (msdos_partition(hd, dev, first_sector))

Comment 3 giulioo 2000-09-18 11:09:33 UTC
Ok, this fixes the ls120 problem, thanks. So this bug can be closed.

Now I see there's another problem with linuxconf which I'll file in
bugzilla when I get rh70 (since I'm still on rc1 and don't now if this
has been fixed).

The problem manifests only when I configure the ide cdrw:
1) modules.conf  
options ide-cd ignore=hdd
2) modprobe ide-scsi

Then every time I exit linuxconf I get (on console and messages)
kernel: ide-scsi: hdd: unsupported command in request queue (0)
kernel: end_request: I/O error, dev 16:40 (hdd), sector 0

[root@i5 /dev]# grep cdrom /etc/fstab
/dev/cdrom              /mnt/cdrom              iso9660 noauto,owner,ro 0 0
[root@i5 /dev]# ls -l /dev/cdrom
lrwxrwxrwx    1 root     root            4 set 18 13:03 /dev/cdrom -> scd0

Comment 4 giulioo 2000-12-06 11:39:10 UTC
The proposed kernel modification solves the problem, but it's not in rh70 
final. So this still needs to be addressed in future versions.

Comment 5 Glen Foster 2001-01-11 21:03:01 UTC
This defect is considered MUST-FIX for Florence Gold release

Comment 6 Michael K. Johnson 2001-01-12 14:50:05 UTC
That patch will be in the next 2.2-based errata from Red Hat.
I don't think it's necessary for the 2.4 kernels (genhd.c has
changed wildly and at least that prink line isn't in that
directory at all) but if it is please open a new bug report
for the 2.4 kernels.  Thanks!

Comment 7 giulioo 2001-02-09 17:11:29 UTC
Beta2 was ok.

Beta3 is angry again: every time I access the ls120 (tar to/from it, mount it, 
quit linuxconf) I get this messages on console:
ide-floppy: hdc: I/O error, pc = 5a, key =  5, asc = 24, ascq =  0

in /var/log/messages there is also
hdc: unknown partition table

Comment 8 Arjan van de Ven 2001-02-09 19:03:52 UTC
Can you try the updated kernel (either via up2date or from the rawhide
directory on ftp.redhat.com)? It should have a fix for this.

Comment 9 giulioo 2001-02-09 19:38:55 UTC
Ok, rawhide kernel does not clutter the console, just "unknown partition table" 
in messages.

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