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[Qemu-devel] [Bug 1077116] Re: automoc4 segfaults when building in an ar


From: Serge Hallyn
Subject: [Qemu-devel] [Bug 1077116] Re: automoc4 segfaults when building in an armhf pbuilder on an amd64 host
Date: Wed, 20 Feb 2013 15:44:37 -0000

Thanks for reporting this bug.  There seem to be a few bugs in the armhf
qemu-user-static right now.  I'll test against bleeding edge upstream.

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https://bugs.launchpad.net/bugs/1077116

Title:
  automoc4 segfaults when building in an armhf pbuilder on an amd64 host

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  Confirmed

Bug description:
  When trying to build kde4libs in an armhf pbuilder created with the
  pbuilder-scripts running on an amd64 host automoc4 recieves a
  segmentation fault and I can't get any useful information out of it:

  address@hidden:/tmp/kde4libs-4.9.3/build/kdeui# /usr/bin/automoc4 
kdeui_automoc.cpp ../../kdeui/ . moc-qt4 cmake
  unable to dump 00102c00
  Segmentation fault (core dumped)
  address@hidden:/tmp/kde4libs-4.9.3/build/kdeui# gdb /usr/bin/automoc4 
qemu_automoc4_20121108-211818_15839.core  
  GNU gdb (GDB) 7.5-ubuntu
  Copyright (C) 2012 Free Software Foundation, Inc.
  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  This is free software: you are free to change and redistribute it.
  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  and "show warranty" for details.
  This GDB was configured as "arm-linux-gnueabihf".
  For bug reporting instructions, please see:
  <http://www.gnu.org/software/gdb/bugs/>...
  Reading symbols from /usr/bin/automoc4...done.
  BFD: Warning: 
/tmp/kde4libs-4.9.3/build/kdeui/qemu_automoc4_20121108-211818_15839.core is 
truncated: expected core file size >= 5150720, found: 974848.
  [New LWP 15839]
  [New LWP 15866]
  Cannot access memory at address 0xf67fe954
  Cannot access memory at address 0xf67fe950
  (gdb) bt
  #0  0xf6630306 in ?? ()
  #1  0xf6415ff8 in ?? ()
  #2  0xf6415ff8 in ?? ()
  Backtrace stopped: previous frame identical to this frame (corrupt stack?)
  (gdb) 

  automoc4 runs fine when building on a nexus7 so this sounds like an issue in 
qemu.
  Tested in quantal and raring.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: qemu-user-static 1.2.0-2012.09-0ubuntu1
  Uname: Linux 3.6.2-030602-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.6.2-0ubuntu3
  Architecture: amd64
  Date: Fri Nov  9 19:29:28 2012
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2011-10-08 (398 days ago)
  InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20111007)
  MarkForUpload: True
  ProcEnviron:
   SHELL=/bin/bash
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   LANGUAGE=en_US.UTF-8
  SourcePackage: qemu-linaro
  UpgradeStatus: No upgrade log present (probably fresh install)

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