kernel-packages team mailing list archive

[Adam Conrad <adconrad@xxxxxxx>]

Okay, had a long talk with mpee and benh on IRC, where a few things came
out of it:

1) This is absolutely an upstream kernel bug.
2) This code probably doesn't work on anything newer than a G5 *anyway*, even if they fix that one line.

Given those two points, the conclusion we came to is that we should
disable CONFIG_HIBERNATION for ppc64el, and they'll backburner an item
to some day see if they can make hibernation work on modern POWER CPUs,
but no one sees that as critical.

I did a testbuild on ppc64el with CONFIG_HIBERNATION=n, and that worked
fine, so that's what we should do for now.

** Package changed: binutils (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
     Assignee: Matthias Klose (doko) => (unassigned)

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Summary changed:

- 4.0 kernel build failure on ppc64el
+ Disable CONFIG_HIBERNATION on ppc64el

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1463836

Title:
  Disable CONFIG_HIBERNATION on ppc64el

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  We have uploaded our first 4.0 based Wily kernel to the archive but
  are unfortunately seeing the following build failure which we believe
  is related to our wily toolchain:

  https://launchpadlibrarian.net/208665203/buildlog_ubuntu-wily-
  ppc64el.linux_4.0.0-1.1_BUILDING.txt.gz

  /build/buildd/linux-4.0.0/arch/powerpc/kernel/swsusp_asm64.S: Assembler messages:
  /build/buildd/linux-4.0.0/arch/powerpc/kernel/swsusp_asm64.S:188: Error: missing operand
  /build/buildd/linux-4.0.0/scripts/Makefile.build:294: recipe for target 'arch/powerpc/kernel/swsusp_asm64.o' failed
  make[3]: *** [arch/powerpc/kernel/swsusp_asm64.o] Error 1
  /build/buildd/linux-4.0.0/Makefile:957: recipe for target 'arch/powerpc/kernel' failed
  make[2]: *** [arch/powerpc/kernel] Error 2

  We do not believe this is due to a kernel change as the code in
  question has not changed in years.  Additionally, we had 4.0 based
  test builds successfully passing in our PPA (ppa:canonical-kernel-
  team/ppa).  The last successful test build in our PPA was from May 21
  (the logs are still there if needed).  We were also unable to
  reproduce by cross-compiling.

  As added information, our wily kernel git repo can be seen at:

  https://git.launchpad.net/~ubuntu-
  kernel/ubuntu/+source/linux/+git/wily

  Let us know if any additional information is required to debug this.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: binutils 2.25-8ubuntu1
  ProcVersionSignature: Ubuntu 4.0.0-1.1-generic 4.0.5
  Uname: Linux 4.0.0-1-generic x86_64
  ApportVersion: 2.17.3-0ubuntu4
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Jun 10 06:16:10 2015
  Dependencies:
   gcc-5-base 5.1.1-9ubuntu2
   libc6 2.21-0ubuntu4
   libgcc1 1:5.1.1-9ubuntu2
   multiarch-support 2.21-0ubuntu4
   zlib1g 1:1.2.8.dfsg-2ubuntu1
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-03-17 (449 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140317)
  SourcePackage: binutils
  UpgradeStatus: Upgraded to wily on 2015-05-28 (12 days ago)

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