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Date: Fri, 01 Mar 2013 16:58:13 -0800 (PST)
From: animelovin@...il.com
To: linux-kernel@...r.kernel.org
Cc: torvalds@...ux-foundation.org
Subject: [pata] [critical]: ide_sr_mod and id_scsi: unable to read/write dvd
since 2.6.24 to 3.4.11!
Hi,
since a kernel upgrade to 2.6.33 on debian and now 3.4.11 i cannot longer
use (read, write) dvds medias as the /dev/sr0 symlink appears ignoring the dvd
drive (incorrectly dentified as /dev/hda).
I read intensively on this issue over google and found many users looking
for clues how to read/write dvds having apparently the same issue with Optiarc
based dvds. Is generic dvd/udf support has thus evaporated in the miss of merging udev in
systemd or did it vanished to enforce cdrom only media in Linux?
So far my debugging seem to identify this problem on Optiarc based drives as they are
possibly incorrectly detected by the libata/atapi
abstraction layer (kernel part) as the hal server is being replaced with the newer
systemd architecture.
Moreover, i'm uncertain about the current state of the PATA api so my assumption was
that generic dvd/udf support was provided using the ide_cd and ide_sr modules.
Hence is there any reasons to worry about the current state of dvdrw drives in the 3.4.x
kernel or was this issue reported already on a more recent development release?
Etienne
erob@...ns:~/src/OpenZilla/1.0.032$ dmesg | grep -e scsi
[ 5.017936] scsi0 : ahci
[ 5.020923] scsi1 : ahci
[ 5.025594] scsi2 : ahci
[ 5.026919] scsi3 : ahci
[ 5.374169] scsi 0:0:0:0: Direct-Access ATA ST9100827AS 3.BH PQ: 0 ANSI: 5
[ 5.564078] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 18.013476] scsi4 : usb-storage 1-4:1.0
[ 19.010738] scsi 4:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2
[ 19.012171] sd 4:0:0:0: Attached scsi generic sg1 type 0
erob@...ns:~/src/OpenZilla/1.0.032$ dmesg | grep -e Opti
[ 4.290430] hda: Optiarc DVD RW AD-7530A, ATAPI CD/DVD-ROM drive
erob@...ns:~/src/OpenZilla/tags/1.0.032$ ls -l /dev/disk/by-id/ata-*
lrwxrwxrwx 1 root root 9 Feb 26 15:00 /dev/disk/by-id/ata-Optiarc_DVD_RW_AD-7530A_30644560_1143769Q111 -> ../../hda
erob@...ns:~/src/OpenZilla/1.0.032$ sudo lshw -C disk
*-cdrom
description: DVD-RAM writer
product: Optiarc DVD RW AD-7530A
physical id: 0
bus info: ide@0.0
logical name: /dev/hda
version: EH31
serial: 30644560 1143769Q111
capabilities: packet atapi cdrom removable nonmagnetic dma lba iordy audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: status=ready
*-medium
physical id: 0
logical name: /dev/hda
erob@...ns:~/src/OpenZilla/1.0.032$ lsmod
Module Size Used by
msr 1792 0
cpufreq_stats 1990 0
isofs 23775 0
nf_conntrack_ipv4 4401 1
nf_defrag_ipv4 807 1 nf_conntrack_ipv4
xt_conntrack 2349 1
nf_conntrack 31746 2 xt_conntrack,nf_conntrack_ipv4
xt_tcpudp 1611 11
ipt_REJECT 1513 1
iptable_filter 936 1
ip_tables 7698 1 iptable_filter
x_tables 8861 5 ip_tables,xt_tcpudp,xt_conntrack,iptable_filter,ipt_REJECT
i915 312876 3
drm_kms_helper 17996 1 i915
iTCO_wdt 9877 0
coretemp 4170 0
microcode 5472 0
psmouse 35050 0
acpi_cpufreq 4405 0
mperf 843 1 acpi_cpufreq
intel_agp 7976 1 i915
serio_raw 3049 0
evdev 6282 7
drm 141864 4 i915,drm_kms_helper
i2c_i801 6305 0
intel_gtt 9417 3 i915,intel_agp
rng_core 2234 0
battery 8351 0
ac 2387 0
video 9543 1 i915
processor 22835 3 acpi_cpufreq
button 3378 1 i915
wmi 5875 0
agpgart 17805 3 drm,intel_agp,intel_gtt
i2c_algo_bit 3783 1 i915
i2c_core 12639 5 drm,i915,i2c_i801,drm_kms_helper,i2c_algo_bit
snd_hda_codec_conexant 32084 1
snd_hda_intel 16845 3
snd_hda_codec 53103 2 snd_hda_codec_conexant,snd_hda_intel
snd_pcm_oss 26773 0
snd_mixer_oss 9774 1 snd_pcm_oss
snd_pcm 47757 4 snd_pcm_oss,snd_hda_codec,snd_hda_intel
snd_page_alloc 4769 2 snd_pcm,snd_hda_intel
snd_seq_dummy 939 0
snd_seq_oss 18939 0
snd_seq_midi 3256 0
snd_rawmidi 11969 1 snd_seq_midi
snd_seq_midi_event 3620 2 snd_seq_oss,snd_seq_midi
snd_seq 32432 6 snd_seq_midi_event,snd_seq_oss,snd_seq_dummy,snd_seq_midi
snd_seq_device 3548 5 snd_seq,snd_rawmidi,snd_seq_oss,snd_seq_dummy,snd_seq_midi
snd_timer 11781 3 snd_pcm,snd_seq
snd 34062 15 snd_pcm_oss,snd_timer,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_oss,snd_seq_device,snd_mixer_oss
soundcore 3270 1 snd
sr_mod 10588 0
loop 10879 0
ipv6 185889 10
autofs4 15653 2
ext3 132465 6
jbd 40538 1 ext3
usbhid 25216 0
hid 57500 1 usbhid
usb_storage 30877 0
uhci_hcd 15949 0
ehci_hcd 29482 0
sg 19105 0
sd_mod 22316 11
ide_cd_mod 20259 0
ata_generic 2259 0
ata_piix 17903 0
ide_pci_generic 1972 0
thermal 6151 0
thermal_sys 9638 3 video,thermal,processor
8139too 15223 0
8139cp 12931 0
mii 2791 2 8139cp,8139too
ahci 16821 10
libahci 13335 1 ahci
libata 115151 4 ahci,libahci,ata_generic,ata_piix
scsi_mod 131421 5 sg,usb_storage,libata,sd_mod,sr_mod
usbcore 93181 5 uhci_hcd,usb_storage,ehci_hcd,usbhid
piix 3624 0
ide_core 62515 3 piix,ide_cd_mod,ide_pci_generic
usb_common 590 1 usbcore
erob@...ns:~/src/OpenZilla/1.0.032$
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