Is this a same bug? I am experiencing DVD drive related troubles in these months and it resembles our symptoms.
* Symptom
- DVD writing randomly fails (sometimes OK, sometimes bad)
- DVD drive reading frequently fails.
- Reading DVDs from ISO image are OK
- Trying DVD playing in Windows is OK
- Trying DVD reading/writing using USB-attached DVD drive is OK
- Some I/O error messages found in /var/log/messages, like this
Jun 16 20:27:16 <computer name> kernel: [62767.178851] end_request: I/O error, dev sr0, sector 45904
Here is log messages after mounting DVD disk.
Jun 17 17:37:53 <computer name> kernel: [ 1705.024273] UDF-fs: Partition marked readonly
; forcing readonly mount
Jun 17 17:37:53 <computer name> kernel: [ 1705.052214] UDF-fs INFO UDF 0.9.8.1 (2004/29/
09) Mounting volume 'PCBE_53310', timestamp 2009/04/13 12:41 (121c)
Jun 17 17:38:17 <computer name> kernel: [ 1723.589345] cdb a4 00 00 00 00 00 00
00 00 10 c1 00 00 00 00 00
Jun 17 17:38:17 <computer name> kernel: [ 1723.589346] res 40/00:02:00:0c:00/00
:00:00:00:00/a0 Emask 0x4 (timeout)
Jun 17 17:38:18 <computer name> kernel: [ 1723.803249] ata1: soft resetting link
Jun 17 17:38:23 <computer name> kernel: [ 1727.400009] ata1: port is slow to respond, pl
ease be patient (Status 0xf8)
Jun 17 17:38:28 <computer name> kernel: [ 1731.269685] ata1: hard resetting link
Jun 17 17:38:28 <computer name> kernel: [ 1731.654005] ata1: SATA link up 1.5 Gbps (SSta
tus 113 SControl 310)
Jun 17 17:38:28 <computer name> kernel: [ 1731.912704] ata1.00: configured for UDMA/66
Jun 17 17:38:28 <computer name> kernel: [ 1731.912724] ata1: EH complete
Jun 17 17:38:28 <computer name> kernel: [ 1731.914444] sr0: disc change detected.
Jun 17 17:38:28 <computer name> kernel: [ 1731.922459] VFS: busy inodes on changed media.
After reboot, the system is OK and I can read/write DVD with no problem. However, as DMA mode is off, the DVD playing is really slow and glitchy.
* System
- Coumputer: Dell OptiPlex 740
- CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
- Peripheral chip: nVidia C51
My system has internal additional SATA interface attached in the PCI bus. It uses Sil 3512 chipset. The DVD drive is attached to this SATA card.
Hey,
Is this a same bug? I am experiencing DVD drive related troubles in these months and it resembles our symptoms.
* Symptom
- DVD writing randomly fails (sometimes OK, sometimes bad)
- DVD drive reading frequently fails.
- Reading DVDs from ISO image are OK
- Trying DVD playing in Windows is OK
- Trying DVD reading/writing using USB-attached DVD drive is OK
- Some I/O error messages found in /var/log/messages, like this
Jun 16 20:27:16 <computer name> kernel: [62767.178851] end_request: I/O error, dev sr0, sector 45904
Here is log messages after mounting DVD disk. 00:0c:00/ 00
Jun 17 17:37:53 <computer name> kernel: [ 1705.024273] UDF-fs: Partition marked readonly
; forcing readonly mount
Jun 17 17:37:53 <computer name> kernel: [ 1705.052214] UDF-fs INFO UDF 0.9.8.1 (2004/29/
09) Mounting volume 'PCBE_53310', timestamp 2009/04/13 12:41 (121c)
Jun 17 17:38:17 <computer name> kernel: [ 1723.589345] cdb a4 00 00 00 00 00 00
00 00 10 c1 00 00 00 00 00
Jun 17 17:38:17 <computer name> kernel: [ 1723.589346] res 40/00:02:
:00:00:00:00/a0 Emask 0x4 (timeout)
Jun 17 17:38:18 <computer name> kernel: [ 1723.803249] ata1: soft resetting link
Jun 17 17:38:23 <computer name> kernel: [ 1727.400009] ata1: port is slow to respond, pl
ease be patient (Status 0xf8)
Jun 17 17:38:28 <computer name> kernel: [ 1731.269685] ata1: hard resetting link
Jun 17 17:38:28 <computer name> kernel: [ 1731.654005] ata1: SATA link up 1.5 Gbps (SSta
tus 113 SControl 310)
Jun 17 17:38:28 <computer name> kernel: [ 1731.912704] ata1.00: configured for UDMA/66
Jun 17 17:38:28 <computer name> kernel: [ 1731.912724] ata1: EH complete
Jun 17 17:38:28 <computer name> kernel: [ 1731.914444] sr0: disc change detected.
Jun 17 17:38:28 <computer name> kernel: [ 1731.922459] VFS: busy inodes on changed media.
* current workaround d/options img-`uname -r` /boot/initrd. img-`uname -r`.bak img-`uname -r`
Disabling DMA feature.
- add
options libata dma=1
in /etc/modprobe.
- Then,
sudo cp /boot/initrd.
sudo mkinitramfs -o /boot/initrd.
After reboot, the system is OK and I can read/write DVD with no problem. However, as DMA mode is off, the DVD playing is really slow and glitchy.
* System
- Coumputer: Dell OptiPlex 740
- CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
- Peripheral chip: nVidia C51
My system has internal additional SATA interface attached in the PCI bus. It uses Sil 3512 chipset. The DVD drive is attached to this SATA card.
I hope this message helps.