[Bug 1934995] Re: Broken on ppc64el (toolchain bug?)

[Launchpad Bug Tracker]

This bug was fixed in the package mir - 2.4.1-0ubuntu2

---------------
mir (2.4.1-0ubuntu2) impish; urgency=medium

  * debian/patches/fix-UB-in-open-interposer.patch:
    - Cherry-pick upstream patches fixing UB in the test-suite, resulting in a
      FTBFS on ppc64el (LP: #1934995)
  * debian/patches/work-around-gcc-maybe-uninitialised-bug.patch:
    - Cherry-pick upstream patches working around an incorrect warning
      caused by a gcc bug exposed with the previous patch.

 -- Christopher James Halse Rogers <raof at ubuntu.com>  Wed, 28 Jul 2021
11:01:36 +1000

** Changed in: mir (Ubuntu)
       Status: New => Fix Released

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Title:
  Broken on ppc64el (toolchain bug?)

Status in glibc package in Ubuntu:
  Invalid
Status in mir package in Ubuntu:
  Fix Released
Status in umockdev package in Ubuntu:
  Invalid

Bug description:
  umockdev appears to be broken on ppc64el in impish. Running it on one
  of Mir's umockdev-using tests results in:

  (impish-ppc64el)root at juju-deb017-porterbox-1:/build/mir-Xn1VqE/umockdev# umockdev-run ../mir-2.4.1/build-ppc64el/bin/mir_umock_unit_tests
  MIR_CLIENT_PLATFORM_PATH=../mir-2.4.1/build-ppc64el/bin/../lib/client-modules/
  MIR_SERVER_PLATFORM_PATH=../mir-2.4.1/build-ppc64el/bin/../lib/server-modules/
  LD_LIBRARY_PATH=../mir-2.4.1/build-ppc64el/bin/../lib
  exec=../mir-2.4.1/build-ppc64el/bin/mir_umock_unit_tests.bin
  *** stack smashing detected ***: terminated
  umockdev-run: unable to propagate signal 6 to child 15833: No such process

  (You can also see this in the Mir 2.4.1-0ubuntu1 build log:
  https://launchpadlibrarian.net/546972958/buildlog_ubuntu-impish-
  ppc64el.mir_2.4.1-0ubuntu1_BUILDING.txt.gz )

  Installing umockdev 0.15.4-1 and libumockdev0 0.15.4-1 from hirsute
  results in those tests passing.

  Strangely, rebuilding umockdev 0.15.4-1 in a hirsute sbuild
  environment results in packages that do *not* pass those tests,
  suggesting a toolchain change might be responsible.

  Unfortunately, I've tried rebuilding umockdev with gcc-9, gcc-11, and
  vala 0.48.12-1 in Impish and none of these appear to work.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: umockdev 0.16.1-1
  ProcVersionSignature: Ubuntu 5.11.0-20.21+21.10.1-generic 5.11.21
  Uname: Linux 5.11.0-20-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu67
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Jul  8 16:04:15 2021
  InstallationDate: Installed on 2021-06-26 (11 days ago)
  InstallationMedia: Ubuntu 21.10.0 2021.05.28 amd64 "bcachefs" (20210622)
  SourcePackage: umockdev
  UpgradeStatus: No upgrade log present (probably fresh install)

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