[Bug 1695093] Re: arm64: "unsupported RELA relocation: 275" loading certain modules

[dann frazier]

I uploaded a package w/ the patch from Comment #7 to ppa:dannf/test. Note that the tests took a *very* long time on arm64, with lots of timeouts:
  https://launchpad.net/~dannf/+archive/ubuntu/test/+build/13073558
This was not a problem for other architectures.

I did a local arm64 build of the *current* gcc-5 in xenial-updates, and observed the same symptoms - so I don't think this is a regression in my proposed fix. That said, this wasn't a problem with the current xenial-updates build:
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/security/+build/11132711

So it would appear that something has regressed for xenial since that
upload.

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https://bugs.launchpad.net/bugs/1695093

Title:
  arm64: "unsupported RELA relocation: 275" loading certain modules

Status in Linux:
  In Progress
Status in gcc-5 package in Ubuntu:
  New
Status in gcc-6 package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed
Status in gcc-5 source package in Xenial:
  Confirmed
Status in gcc-6 source package in Xenial:
  Invalid
Status in linux source package in Xenial:
  Confirmed
Status in gcc-5 source package in Yakkety:
  New
Status in gcc-6 source package in Yakkety:
  Confirmed
Status in linux source package in Yakkety:
  Confirmed
Status in gcc-5 source package in Zesty:
  New
Status in gcc-6 source package in Zesty:
  Confirmed
Status in linux source package in Zesty:
  Confirmed

Bug description:
  With the hwe-z kernel:

  ubuntu at grotian:~$ sudo modprobe libceph
  modprobe: ERROR: could not insert 'libceph': Exec format error
  ubuntu at grotian:~$ dmesg
  [66988.470307] module libceph: unsupported RELA relocation: 275

  This symptom is similar to LP: #1533009 but, in that case it impacted
  all modules, and the fix for that appears to remain in place.

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