CONFIG_AX25_DAMA_SLAVE not enabled

Bug #257684 reported by Tim Gardner on 2008-08-13
6
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Low
Tim Gardner
Hardy
Low
Tim Gardner

Bug Description

Hello,

i'd like to inform you about an upstream fix to the kernel for the kernel-ax25 code (see below).

With 2.6.24, the /proc code has changed. This broke /proc/sys/net/ax25/... if the config "CONFIG_AX25_DAMA_SLAVE is not set", as it is in ubuntu.

Ubuntu hardy ships with 2.6.24 and is affected. Thus /proc/sys/ax25 is not present.

The hot-fix without patch could be CONFIG_AX25_DAMA_SLAVE=y, because then the referenced function to the proc interface is not missing.

I tend to think it could be a good idea anyway to set CONFIG_AX25_DAMA_SLAVE=y. This option compiles support for DAMA into the kernel, but it still has to be enabled via /proc. Just being capable to do DAMA does not harm. Without this option, users who require DAMA need to recompile the kernel - which most users nowadays won't. DAMA Slave is user requirement for users in some areas..

I'm not sure why this option is not set in debian and ubuntu kernels, bat i assume it is for historical reasons (a little bit lesser RAM in use).

- Thomas Osterried

Tim Gardner (timg-tpi) wrote :
Changed in linux:
assignee: nobody → timg-tpi
importance: Undecided → Low
milestone: none → ubuntu-8.04.2
status: New → Fix Committed
Tim Gardner (timg-tpi) wrote :

SRU Justification

Impact: Cannot use /proc interface for AX.25

Patch Description: Enable CONFIG_AX25_DAMA_SLAVE config option

Patch: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=commit;h=e4e7e60316dd82e96398bdf731656b8a96843778

Test Case: See bug description.

Tim Gardner (timg-tpi) wrote :
Changed in linux:
assignee: nobody → timg-tpi
importance: Undecided → Low
milestone: none → ubuntu-8.04.2
status: New → Fix Committed
milestone: ubuntu-8.04.2 → none
Martin Pitt (pitti) wrote :

linux 2.6.24-21 copied to hardy-updates.

Changed in linux:
status: Fix Committed → Fix Released
Martin Pitt (pitti) wrote :

Sorry, this one wasn't in -proposed yet.

Changed in linux:
status: Fix Released → Fix Committed
Martin Pitt (pitti) wrote :

Accepted into intrepid-proposed, please test and give feedback here. Please see https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Martin Pitt (pitti) wrote :

Accepted into hardy-proposed, please test and give feedback here. Please see https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Martin Pitt (pitti) wrote :

Accepted linux into hardy-proposed, please test and give feedback here. Please see https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

Steve Beattie (sbeattie) wrote :

This was fixed in Intrepid during the development cycle; I've verified that the released version of the Intrepid kernel has CONFIG_AX25_DAMA_SLAVE set to 'y'. Marking that task as Fix Released.

Changed in linux:
status: Fix Committed → Fix Released
Steve Beattie (sbeattie) wrote :

I can confirm that the configuration for the kernel in 2.6.24-19.41 and 2.6.24-22.45 don't have the CONFIG_AX25_DAMA_SLAVE config option set, and that the kernel in hardy-proposed, 2.6.24-23.46 does have this setting set (for both i386 and amd64 kernels). Beyond that, I can verify that /proc/sys/net/ax25 appears when the ax25 module is loaded, but nothing appears in that directory; is that correct behavior?

Otherwise, the kernel in -proposed boots and appears to function here.

Launchpad Janitor (janitor) wrote :
Download full text (12.0 KiB)

This bug was fixed in the package linux - 2.6.24-23.46

---------------
linux (2.6.24-23.46) hardy-proposed; urgency=low

  [Alessio Igor Bogani]

  * rt: Updated PREEMPT_RT support to rt21
    - LP: #302138

  [Amit Kucheria]

  * SAUCE: Update lpia patches from moblin tree
    - LP: #291457

  [Andy Whitcroft]

  * SAUCE: replace gfs2_bitfit with upstream version to prevent oops
    - LP: #276641

  [Colin Ian King]

  * isdn: Do not validate ISDN net device address prior to interface-up
    - LP: #237306
  * hwmon: (coretemp) Add Penryn CPU to coretemp
    - LP: #235119
  * USB: add support for Motorola ROKR Z6 cellphone in mass storage mode
    - LP: #263217
  * md: fix an occasional deadlock in raid5
    - LP: #208551

  [Stefan Bader]

  * SAUCE: buildenv: Show CVE entries in printchanges
  * SAUCE: buildenv: Send git-ubuntu-log informational message to stderr
  * Xen: dma: avoid unnecessarily SWIOTLB bounce buffering
    - LP: #247148
  * Update openvz patchset to apply to latest stable tree.
    - LP: #301634
  * XEN: Fix FTBS with stable updates
    - LP: #301634

  [Steve Conklin]

  * Add HID quirk for dual USB gamepad
    - LP: #140608

  [Tim Gardner]

  * Enable CONFIG_AX25_DAMA_SLAVE=y
    - LP: #257684
  * SAUCE: Correctly blacklist Thinkpad r40e in ACPI
    - LP: #278794
  * SAUCE: ALPS touchpad for Dell Latitude E6500/E6400
    - LP: #270643

  [Upstream Kernel Changes]

  * Revert "[Bluetooth] Eliminate checks for impossible conditions in IRQ
    handler"
    - LP: #217659
  * KVM: VMX: Clear CR4.VMXE in hardware_disable
    - LP: #268981
  * iov_iter_advance() fix
    - LP: #231746
  * Fix off-by-one error in iov_iter_advance()
    - LP: #231746
  * USB: serial: ch341: New VID/PID for CH341 USB-serial
    - LP: #272485
  * x86: Fix 32-bit x86 MSI-X allocation leakage
    - LP: #273103
  * b43legacy: Fix failure in rate-adjustment mechanism
    - LP: #273143
  * x86: Reserve FIRST_DEVICE_VECTOR in used_vectors bitmap.
    - LP: #276334
  * openvz: merge missed fixes from vanilla 2.6.24 openvz branch
    - LP: #298059
  * openvz: some autofs related fixes
    - LP: #298059
  * openvz: fix ve stop deadlock after nfs connect
    - LP: #298059
  * openvz: fix netlink and rtnl inside container
    - LP: #298059
  * openvz: fix wrong size of ub0_percpu
    - LP: #298059
  * openvz: fix OOPS while stopping VE started before binfmt_misc.ko loaded
    - LP: #298059
  * x86-64: Fix "bytes left to copy" return value for copy_from_user()
  * NET: Fix race in dev_close(). (Bug 9750)
    - LP: #301608
  * IPV6: Fix IPsec datagram fragmentation
    - LP: #301608
  * IPV6: dst_entry leak in ip4ip6_err.
    - LP: #301608
  * IPV4: Remove IP_TOS setting privilege checks.
    - LP: #301608
  * IPCONFIG: The kernel gets no IP from some DHCP servers
    - LP: #301608
  * IPCOMP: Disable BH on output when using shared tfm
    - LP: #301608
  * IRQ_NOPROBE helper functions
    - LP: #301608
  * MIPS: Mark all but i8259 interrupts as no-probe.
    - LP: #301608
  * ub: fix up the conversion to sg_init_table()
    - LP: #301608
  * x86: adjust enable_NMI_through_LVT0()
    - LP: #301608
  * SCSI ips: handle scsi_add_host() failure, and other err cl...

Changed in linux:
status: Fix Committed → Fix Released
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