[Bug 1407619] Re: ltrace sleep 1 fails to get proper output in Ubuntu 15.04

Steve Langasek steve.langasek at canonical.com
Mon May 4 20:40:03 UTC 2015


*** This bug is a duplicate of bug 1398143 ***
    https://bugs.launchpad.net/bugs/1398143

** This bug has been marked a duplicate of bug 1398143
   Ltrace is broken on ppc64el

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https://bugs.launchpad.net/bugs/1407619

Title:
  ltrace sleep 1 fails to get proper output in Ubuntu 15.04

Status in ltrace package in Ubuntu:
  New

Bug description:
  == Comment: #0 - PAVAMAN SUBRAMANIYAM <pavsubra at in.ibm.com> - 2015-01-02 02:01:07 ==
  ---Problem Description---
  ltrace sleep 1 fails to get proper output in Ubuntu 15.04
   
  Contact Information = pavsubra at in.ibm.com 
   
  ---uname output---
  Linux ubuntu 3.16.0-28-generic #38-Ubuntu SMP Fri Dec 12 17:39:43 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = P8 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
  Install a Ubuntu 15.04 guest VM on a Power KVM Host on P8 Hardware.
  Then install ltrace package on the same and execute the below scenario.

  root at ubuntu:~# ltrace sleep 1
  strtod_l(2, 0x3fffdbcf3028, 0x3fffdbcf3040, 0x3fffdbcf30e0 <unfinished ...>
  abort()                                          = <void>
  __libc_start_main(0x10009da8, 0x10009db8, 0x3fff98a73618, 0x3fff98a73608) = 0x3fff98a2d0d8
  getopt_long(268475816, 0x3fff98a2d0e8, "efghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204"..., 0x65, -16843009) = 311955472
  lseek(268443296, 0, 0)                           = 0
  getopt_long(2, 0x3fffdbcf3028, "+", 0x10009ef0, nil <unfinished ...>
  __fprintf_chk(2, 0x3fffdbcf3028, 0x10009f50, 0x10009ef0 <no return ...>
  --- SIGSEGV (Segmentation fault) ---
  +++ killed by SIGSEGV +++
  root at ubuntu:~# echo $?
  0

  root at ubuntu:~# dpkg -S /usr/bin/ltrace
  ltrace: /usr/bin/ltrace

  root at ubuntu:~# dpkg --list | grep ltrace
  ii  ltrace                              0.7.3-4ubuntu6               ppc64el      Tracks runtime library calls in dynamically linked programs

  
   
  Userspace tool common name: /usr/bin/ltrace 

  Userspace rpm: ltrace 0.7.3-4ubuntu6 
   
  The userspace tool has the following bit modes: 64-bit 

  Userspace tool obtained from project website:  na 
   
  *Additional Instructions for pavsubra at in.ibm.com: 
  -Post a private note with access information to the machine that the bug is occuring on.
  -Attach ltrace and strace of userspace application.

  == Comment: #1 - PAVAMAN SUBRAMANIYAM <pavsubra at in.ibm.com> - 2015-01-02 02:03:42 ==
  This issue was earlier resolved with the latest version of ltrace debian package.
  Refer this tasty taco bug: https://bugs.launchpad.net/tasty-taco/+bug/1268841

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