Bug 237509 - floppy disk absent/change notice handled badly
Summary: floppy disk absent/change notice handled badly
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel   
(Show other bugs)
Version: 6
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2007-04-23 16:02 UTC by Zing
Modified: 2007-11-30 22:12 UTC (History)
0 users

Fixed In Version: f7
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2007-08-07 15:22:09 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 Zing 2007-04-23 16:02:53 UTC
Description of problem:
I needed to write out a bunch of floppy image files with dd to /dev/fd0 and
every first write to the next floppy would fail.  Trying immediately again,
would succeed.

Version-Release number of selected component (if applicable):

How reproducible:
all the time, tested on two different fc6 machines.

Steps to Reproduce:
1. Insert a floppy.
2. $ dd if=/dev/zero of=/dev/fd0 count=1 bs=1000

data written out correctly:

1+0 records in
1+0 records out
1000 bytes (1.0 kB) copied, 0.0909503 seconds, 11.0 kB/s

3. remove floppy.
4. insert floppy back into drive.
5. $ dd if=/dev/zero of=/dev/fd0 count=1 bs=1000

floppy0: disk absent or changed during operation
end_request: I/O error, dev fd0, sector 0
dd: writing `/dev/fd0': Input/output error
1+0 records in
0+0 records out
0 bytes (0 B) copied, 0.0209154 seconds, 0.0 kB/s

6. rerun dd command from step 5.

write succeeds.

Actual results:

step 5. fails.

Expected results:

step 5. should succeed. kernel is confused.

Additional info:

Haven't had to use the floppy in awhile, but this worked correctly at some point
in the past.

Comment 1 Pete Zaitcev 2007-08-07 01:04:04 UTC
Is this still a problem? How about Fedora 7?

I do not have an FC-6 box with a floppy, but RHEL-5 and F-7 seem ok in my
testing (tried with stopped HAL).

Comment 2 Zing 2007-08-07 13:25:04 UTC
Both machines are F7 now and the floppy works... you mention hal and I wonder if
that was the cause of the original problem.  Regardless, the disk change seems
to work fine now with haldaemon running or not.  thanks.

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