pktcdvd bound device limit the size readable from attached device when mounting ISO9660 or UDF dual layer DVD-ROM.

Bug #118310 reported by Léa GRIS
10
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Invalid
Undecided
Unassigned
linux-source-2.6.20 (Ubuntu)
Won't Fix
Undecided
Unassigned
linux-source-2.6.22 (Ubuntu)
Won't Fix
Undecided
Unassigned

Bug Description

Binary package hint: linux-source-2.6.20

Binding a DVD device to the pktcdvd driver make it unable du read dual layer DVD. Reading beside the 4GB limit cause read errors.

When a user mounts a CD (or DVD, and affect mostly dual layer DVD-ROM) directly from the device (/dev/hda, for instance) which is still bound to /dev/pktcdvd0. It seems the kernel 2.6.20-16-lowlatency in my case) is only able to read to the size of the /dev/pktcdvd0 device, which leads to the end of the cd being temporarily unreadable.
After “pktsetup -d pktcdvd0″ and perhaps a remount of /dev/hda, everything returns to normal.

The issue has already been discussed with older kernels

Revision history for this message
Léa GRIS (lea-gris) wrote :
Revision history for this message
Léa GRIS (lea-gris) wrote :
Revision history for this message
Léa GRIS (lea-gris) wrote :

Rechecked again. Problem confirmed. Can't read dual layer DVD when device associated with packet writing pktcdvd module.

Changed in linux-source-2.6.20:
status: New → Confirmed
description: updated
Revision history for this message
Bohdan Kmit' (mit) wrote :

I experience this problem on Ubuntu Gutsy with 2.6.22-14-generic kernel.

Revision history for this message
Brian Murray (brian-murray) wrote :

I am assigning this bug to the 'ubuntu-kernel-team' per their bug policy. For future reference you can learn more about their bug policy at https://wiki.ubuntu.com/KernelTeamBugPolicies .

Changed in linux-source-2.6.20:
assignee: nobody → ubuntu-kernel-team
Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

The Hardy Heron Alpha series was recently released. Alpha2 and subsequent releases contain an updated version of the kernel. You can download and try the new Hardy Heron Alpha release from http://cdimage.ubuntu.com/releases/hardy/ . Please note that Alpha3 will be released within the next day or two so you may want to wait. You should be able to then test the new kernel via the LiveCD. If you can, please verify if this bug still exists or not and report back your results. General information regarding the release can also be found here: http://www.ubuntu.com/testing/ .

Changed in linux:
status: New → Incomplete
Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

I've opened a new task against the actively developed kernel and am closing the task against linux-source-2.6.22 and linux-source-2.6.20. Thanks!

Changed in linux-source-2.6.22:
status: New → Won't Fix
Changed in linux-source-2.6.20:
status: Confirmed → Won't Fix
Revision history for this message
Connor Imes (ckimes) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Can you try with latest Ubuntu release? Thanks in advance.

Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

Revision history for this message
Connor Imes (ckimes) wrote :

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!

Changed in linux:
status: Incomplete → Invalid
Revision history for this message
Launchpad Janitor (janitor) wrote : Kernel team bugs

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.

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