[Qemu-devel] [Bug 1254672] Re: ps segfaults with qemu-arm-static

[Ken Sharp]

qemu-powerpc-static on i386:

# ps
Invalid data memory access: 0x00000000
NIP 0feb05e4   LR 0feb1440 CTR 0feb13f0 XER 00000000
MSR 00006040 HID0 00000000  HF 00006000 idx 0
TB 00000000 00000000
GPR00 000000000ffc178c 00000000407fffa0 000000004083f720 0000000000000001
GPR04 0000000029292929 000000000a000000 00000000fefefeff 000000007f7f7f7f
GPR08 0000000000000000 0000000080808080 0000000000000008 00000000ffffffff
GPR12 0000000024000442 000000001002c180 0000000000000000 0000000000000000
GPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000001
GPR28 000000004080088c 0000000000000000 000000000ffa6ff4 0000000000000029
CR 44000444  [ G  G  -  -  -  G  G  G  ]             RES ffffffff
FPR00 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR04 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR08 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR12 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPSCR 00000000
Signal 11 (SEGV) caught by ps (procps-ng version 3.3.4).
/bin/ps:display.c:59: please report this bug

** Tags added: i386

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https://bugs.launchpad.net/bugs/1254672

Title:
  ps segfaults with qemu-arm-static

Status in QEMU:
  New
Status in Linaro QEMU:
  New
Status in “qemu-linaro” package in Ubuntu:
  New

Bug description:
  Host: Ubuntu Precise AMD64
  Guest: Debian Testing armhf (or armel)

  After running a debootstrap for Debian testing/armhf and entering the
  chroot, simply running "ps" causes a segmentation fault.

  $ sudo qemu-debootstrap --arch=armhf testing armhf 
http://ftp.uk.debian.org/debian/
  [...]
  $ sudo chroot armhf
  # ps
  Signal 11 (SEGV) caught by ps (procps-ng version 3.3.4).
  /bin/ps:display.c:59: please report this bug

  I couldn't find a bug report for procps, which would be unusual if
  such a bug existed, so I'm assuming the bug is in qemu.

  Unfortunately trying to run debootstrap for an Ubuntu variant fails to
  find the release file.

  ps is used a lot, as you can imagine, but specifically it fails when
  trying to install some packages via "apt-get install" and no attempt
  is made to recover.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: qemu-user-static 1.0.50-2012.03-0ubuntu2.1
  ProcVersionSignature: Ubuntu 3.8.0-33.48~precise1-generic 3.8.13.11
  Uname: Linux 3.8.0-33-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Mon Nov 25 10:43:12 2013
  Dependencies:

  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 
(20130820.1)
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: qemu-linaro
  UpgradeStatus: No upgrade log present (probably fresh install)

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