Bug 558676

Summary:	cdrkit produces dodgy CDs with I/O errors towards the outer sectors, even with small images
Product:	[Fedora] Fedora	Reporter:	James <james>
Component:	cdrkit	Assignee:	Roman Rakus <rrakus>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	low
Version:	12	CC:	npajkovs, robatino, rrakus, stephent98, tsmetana
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-12-03 23:48:20 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description James 2010-01-26 00:30:35 UTC

Description of problem:
Burning a small 180 MB .ISO image with

  wodim -v speed=10 image.iso

results in a CD that, upon re-insertion, provokes I/O errors. For example, with such a disc I'd see a lot of:

  end_request: I/O error, dev sr0, sector 364000

Now, I do not believe this is hardware related since I can reproduce this on two different machines. One is x86-64 and has a DVD writer, the other i686 and has a DVD player/CD-RW writer. ON EITHER MACHINE, the I/O error is reported at exactly the same sector, from INDEPENDENT burn jobs of the same image, and when using different brands of media. The same I/O errors are also observed when a disc burnt in one machine is put into the other.

(The problems do not occur with Cdrecord-ProDVD-ProBD-Clone 2.01.01a73.)

Version-Release number of selected component (if applicable):
wodim-1.1.10-1.fc12.[x86_64|i686]

How reproducible:
Always, and across different machines.

Steps to Reproduce:
1. Produce an image around 1/3 of CD capacity.
2. Burn.
3. Eject and re-insert.

Comment 1 James 2010-04-05 09:27:11 UTC

Does anyone need any additional info on this? I find it strange that a serious flaw in cdrkit seems to have gone unacknowledged two months after this report.

Comment 2 Nikola Pajkovsky 2010-04-05 13:11:33 UTC

Is this because of you try to burn twice one image on cd without erasing it?

Comment 3 James 2010-04-05 23:06:29 UTC

(In reply to comment #2)
> Is this because of you try to burn twice one image on cd without erasing it?    

No, it's just a simple ISO image on fresh, blank CD-Rs (from a variety of manufacturers).

Comment 4 Steve Tyler 2010-10-26 20:24:34 UTC

(In reply to comment #0)
> Description of problem:
> Burning a small 180 MB .ISO image with
> 
>   wodim -v speed=10 image.iso
> 
> results in a CD that, upon re-insertion, provokes I/O errors. For example, with
> such a disc I'd see a lot of:
> 
>   end_request: I/O error, dev sr0, sector 364000

"-dao" may help with this.
("dao" is "Disk At Once", also called sao, which is "Session At Once")

See also:
Bug 571074 - brasero CD image burns produce kernel I/O errors with some optical drives
Bug 504892 - Live CD will "end_request: I/O error, dev sr0", unable to boot

These pages recommend using Disk at Once:

Coasterless CD Burning
http://www.troubleshooters.com/linux/coasterless.htm

Installation Solutions and Workarounds
Live CD does not boot, gives sr0 or IO errors
http://fedorasolved.org/Members/khaytsus/installation-solutions-and-workarounds

Comment 5 Bug Zapper 2010-11-03 23:54:11 UTC

This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '12'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 12's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 12 is end of life.  If you 
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The process we are following is described here: 
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Comment 6 Bug Zapper 2010-12-03 23:48:20 UTC

Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.