#440401 wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.

Package:
wodim
Source:
cdrkit
Description:
command line CD/DVD writing tool
Submitter:
Srdjan
Date:
2026-06-13 17:25:01 UTC
Severity:
minor
#440401#5
Date:
2007-09-01 07:59:53 UTC
From:
To:
Package: wodim
Version: 9:1.1.6-1
Severity: minor

As a user I get:
wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK
limits.Device was not specified. Trying to find an appropriate drive...

As root no problems.

It does seem to work regardless.

Srdjan
#440401#10
Date:
2007-09-01 17:59:22 UTC
From:
To:
[Srdjan]

That is just a warning.  wodim wants to be able to ask the OS to
prevent some memory from being swapped out, as swapping causes delays
that could produce bad CD burns.  If a non-root user is not permitted
to change this setting, wodim warns you.  But the only effect is an
increased risk of a bad burn (a "coaster").  The program will otherwise
function normally.

On my system, 'ulimit -a | grep locked' shows that this setting is
already on 'unlimited' for my user.  Maybe you have restricted this in
/etc/security/limits.conf?
#440401#15
Date:
2007-09-02 02:54:49 UTC
From:
To:
Hi Peter,

Thanks for the reply.

Peter Samuelson wrote:
The limit is set to 32k, but I did not set that limit myself.  My
/etc/security/limits.conf is untouched, and I could not find any other
place where it is set.

Cheers,
Srdjan
#440401#20
Date:
2020-09-05 02:10:18 UTC
From:
To:
Hello,
Good day!
This is Top Adapter Factory from in China.
We are specialize in ADAPTER&CHARGER for 10 years,and have strong production capacity,promised delivery time and high level quality of product!
If you're interested,please sent purchase detail info(as type/specifications/quantity Ect).We can provide you with the best price.

Also we have our own professional designers to meet any of your requirements.
Sincerely,
Andy
#440401#25
Date:
2026-06-13 17:24:02 UTC
From:
To:
On Sat, 1 Sep 2007 12:59:22 -0500 Peter Samuelson <peter@p12n.org> wrote:
 > That is just a warning. ...The program will otherwise function normally.

That is not the case in Ubuntu 26.04; the operation aborts before
burning the CD.  Effectively it means wodim is unusable except by root.