koops on multiple access to parallel port scanner

Bug #193248 reported by Jan Ischebeck on 2008-02-19
Affects Status Importance Assigned to Milestone
Fix Released
linux (Ubuntu)

Bug Description

Binary package hint: linux-image-2.6.24-8-generic

A HP OfficeJet T65 is connected to the computer.
I started XSane and QuiteInSane shortly afterward. (Both running in parallel)
Then I triggered the Hardwarescan of QuiteInSane again.
The following kernel oops was created.

[ 1576.712764] sysctl table check failed: /dev/parport/parport0/devices/ppdev0/timeslice Sysctl already exists
[ 1576.712781] Pid: 7365, comm: quiteinsane Tainted: P 2.6.24-8-generic #1
[ 1576.712806] [<c01467e5>] set_fail+0x45/0x60
[ 1576.712823] [<c0146a96>] sysctl_check_table+0x296/0x5b0
[ 1576.712829] [<c0134eb8>] sysctl_head_finish+0x18/0x30
[ 1576.712844] [<c0146aaa>] sysctl_check_table+0x2aa/0x5b0
[ 1576.712848] [<c0134eb8>] sysctl_head_finish+0x18/0x30
[ 1576.712863] [<c0146aaa>] sysctl_check_table+0x2aa/0x5b0
[ 1576.712866] [<c0134eb8>] sysctl_head_finish+0x18/0x30
[ 1576.712881] [<c0146aaa>] sysctl_check_table+0x2aa/0x5b0
[ 1576.712884] [<c0134eb8>] sysctl_head_finish+0x18/0x30
[ 1576.712898] [<c0146aaa>] sysctl_check_table+0x2aa/0x5b0
[ 1576.712902] [<c0134eb8>] sysctl_head_finish+0x18/0x30
[ 1576.712916] [<c0146aaa>] sysctl_check_table+0x2aa/0x5b0
[ 1576.712920] [<c0133a39>] sysctl_set_parent+0x19/0x30
[ 1576.712937] [<c0135260>] register_sysctl_table+0x50/0xa0
[ 1576.712944] [<f8a1090e>] parport_device_proc_register+0xae/0xe0 [parport]
[ 1576.712963] [<f8a0ee29>] parport_register_device+0x139/0x260 [parport]
[ 1576.712984] [<f8dd7765>] pp_ioctl+0x445/0x830 [ppdev]
[ 1576.712992] [<f8dd7240>] pp_irq+0x0/0x50 [ppdev]
[ 1576.713011] [<c019a498>] do_ioctl+0x78/0x90
[ 1576.713022] [<c019a6de>] vfs_ioctl+0x22e/0x2b0
[ 1576.713027] [<c018c56e>] do_sys_open+0xbe/0xe0
[ 1576.713038] [<c019a7b6>] sys_ioctl+0x56/0x70
[ 1576.713047] [<c01053c2>] sysenter_past_esp+0x6b/0xa9
[ 1576.713075] =======================
[ 1576.713079] ppdev0: registered pardevice
[ 1576.721171] ppdev0: unregistered pardevice

! No Error was detected by APORT

System: Ubuntu Hardy of 19-Feb-08

Jan Ischebeck (siesel) wrote :
Jan Ischebeck (siesel) wrote :
Jan Ischebeck (siesel) wrote :
Jan Ischebeck (siesel) wrote :
Changed in linux:
status: Unknown → Confirmed
Changed in linux:
assignee: nobody → ubuntu-kernel-team
importance: Undecided → Medium
status: New → Triaged

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.


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.

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.

Changed in linux:
status: Confirmed → In Progress
Changed in linux:
status: In Progress → Fix Released

This bug was noted as fixed in the upstream bug report with the following patch that has already been included in Karmic. Marking bug Fix Released.

ogasawara@yoji:~/ubuntu-karmic$ git log 05ad709d04799125ed85dd816fdb558258102172

commit 05ad709d04799125ed85dd816fdb558258102172

Author: Alan Cox <email address hidden>

Date: Tue Jun 2 16:58:10 2009 +0100

    parport: quickfix the proc registration bug

    Ideally we should have a directory of drivers and a link to the 'active'

    driver. For now just show the first device which is effectively the existing

    semantics without a warning.

    This is an update on the original buggy patch that I then forgot to

    resubmit. Confusingly it was proposed by Red Hat, written by Etched Pixels

    fixed and submitted by Intel ...

    Resolves-Bug: http://bugzilla.kernel.org/show_bug.cgi?id=9749

    Signed-off-by: Alan Cox <email address hidden>

    Signed-off-by: Linus Torvalds <email address hidden>

Changed in linux (Ubuntu):
status: Triaged → Fix Released
Changed in linux:
importance: Unknown → Medium
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