Re: [gentoo-user-br] Problemas gravando cd (resid: 61440)

[Magno Torres]

Verifique se o cdrecorder esta com o suid bit setado, se tiver, retire.
Tente gravar com o usuário normal sem suid ou com root, pois devido a uma 
manobra no kernel 2.6.x o bit suid não tem permissão para alguns acessos de 
baixo nivel. Isso é horrivel a meu ver - pois executar como root é melhor 
devido a prioridade aumentada na execução do processo - evitando a perda do 
CD devido falta de recursos causadas por outros processos, e o bit suid era 
muito pratico. Claro que tem toda a preocupação com buffer overflow, mas 
sinto falta de nao poder usar o suid.



2005/5/10, Alexandre Martani <amartani@×××××.com>:
>
> Olá gente,
>
> Estou tendo problemas gravando cds com o cdrecord, e com todos os
> programas que o utilizam. Ele até começa a gravar, mas normalmente dá
> um erro no meio. No Ubuntu acontece a mesma coisa..
>
> Aqui está a saída do programa, interrompido antes de começar a gravar:
>
> $ cdrecord -dev /dev/hdc -data teste.iso
> cdrecord: No write mode specified.
> cdrecord: Asuming -tao mode.
> cdrecord: Future versions of cdrecord may have different drive
> dependent defaults.
> cdrecord: Continuing in 5 seconds...
> Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg
> Schilling
> on-the-fly encryption (version 1.0-rc1) built-in, (C) 2004,2005
> Maximilian Decker
>
> NOTE: this version of cdrecord is an inofficial (modified) release of
> cdrecord
> and thus may have bugs that are not present in the original version.
> Please send bug reports and support requests to <burbon04 at gmx.de>.
> For more information please see
> http://burbon04.gmxhome.de/linux/CDREncryption.html.
> The original author should not be bothered with problems of this version.
>
> cdrecord: Warning: Running on Linux-2.6.11-gentoo-r6-ale
> cdrecord: There are unsettled issues with Linux-2.5 and newer.
> cdrecord: If you have unexpected problems, please try Linux-2.4 or
> Solaris.
> cdrecord: Cannot allocate memory. WARNING: Cannot do mlockall(2).
> cdrecord: WARNING: This causes a high risk for buffer underruns.
> cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
> cdrecord: Permission denied. WARNING: Cannot set priority using
> setpriority().
> cdrecord: WARNING: This causes a high risk for buffer underruns.
> scsidev: '/dev/hdc'
> devname: '/dev/hdc'
> scsibus: -2 target: -2 lun: -2
> Warning: Open by 'devname' is unintentional and not supported.
> Linux sg driver version: 3.5.27
> Using libscg version 'schily-0.8'.
> Device type : Removable CD-ROM
> Version : 0
> Response Format: 1
> Vendor_info : 'HP '
> Identifikation : 'CD-Writer+ 9100b'
> Revision : '1.06'
> Device seems to be: Generic mmc CD-RW.
> Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
> Driver flags : MMC SWABAUDIO
> Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P
> RAW/R96R
> resid: 61440
> resid: 61440
> (mensagem repetida várias vezes..)
>
> cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler
> cdrecord: Permission denied. WARNING: Cannot set priority using
> setpriority().
> cdrecord: WARNING: This causes a high risk for buffer underruns.
> Starting to write CD/DVD at speed 8 in real TAO mode for single session.
> Last chance to quit, starting real write 8 seconds.
>
> --
> Alexandre Martani - amartani em gmail com
>
> Ainda usando Rwindow$ + Internet Exploder
> Mude!
> Gentoo/Debian GNU/Linux + Mozilla Firefox
>
> http://jonasgalvez.com/br/blog/2003-10/o-que-a-microsoft-esta-planejando
> http://counter.li.org/ - usuário Linux número 358811
>
> http://jbonline.terra.com.br/jb/papel/cadernos/internet/2004/07/04/jorinf20040704001.html
> http://browsehappy.com/
>
> --
> gentoo-user-br@g.o mailing list
>
>


-- 
[]s Magno
Linux user: #123834
http://counter.li.org