[Bug 149076] Re: I can't write a cd

Kosolapy linuxbegin at rambler.ru
Tue Mar 23 21:22:23 UTC 2010

I've corrupted 2 disks with output:

K3b Version: 1.90.0
KDE Version: 4.3.4 (KDE 4.3.4)
QT Version:  4.5.3
Kernel:      2.6.32-4-686

Used versions
mkisofs: 1.1.10
cdrecord: 1.1.10

/usr/bin/wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.
scsidev: '/dev/scd0'
devname: '/dev/scd0'
scsibus: -2 target: -2 lun: -2
Linux sg driver version: 3.5.27
Wodim version: 1.1.10
SCSI buffer size: 64512
Beginning DMA speed test. Set CDR_NODMATEST environment variable if device
communication breaks or freezes immediately after that.
TOC Type: 1 = CD-ROM
Driveropts: 'burnfree'
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   : 
Vendor_info    : 'Optiarc '
Identification : 'DVD RW AD-7203S '
Revision       : '1.06'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Current: 0x002B (DVD+R/DL)
Profile: 0x002B (DVD+R/DL) (current) ...."

I've set up max locked memory in /etc/security/limits.conf by adding lines:
*              hard    memlock         512000
*              soft    memlock         256000
After relogin I've check out limits:

$ ulimit -a
max locked memory       (kbytes, -l) 256000

And now the burning process goes fine.

I can't write a cd
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