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------- Comment (attachment only) From vaish123@xxxxxxxxxx 2015-07-02 09:03 EDT-------


** Attachment added: "output of 'perf trace --verbose sleep 1'"
   https://bugs.launchpad.net/bugs/1470578/+attachment/4423374/+files/file_126351.txt

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https://bugs.launchpad.net/bugs/1470578

Title:
  perf trace sleep 1 command is not giving any output

Status in linux package in Ubuntu:
  New

Bug description:
  Problem Description
  =====================
  perf trace sleep 1 command is not giving any output

  ---uname output---
  Linux alp15 3.19.0-20-generic #20~14.04.1-Ubuntu SMP Sat May 30 00:14:50 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = P8 
   
  Steps to Reproduce
  =======================
  Install a P8 Power VM LPAR with Ubuntu 14.04.2 ISO image.
  Then install the Ubuntu 14.04.3 kernel on the same and reboot.

  root@alp15:~# perf trace sleep 1
  root@alp15:~# echo $?
  0
  root@alp15:~# which perf
  /usr/bin/perf
  root@alp15:~# dpkg -S /usr/bin/perf
  linux-tools-common: /usr/bin/perf
  root@alp15:~# dpkg --list | grep linux-tools
  ii  linux-tools-3.19.0-20-generic              3.19.0-20.20~14.04.1                       ppc64el      Linux kernel version specific tools for version 3.19.0-20
  ii  linux-tools-common                         3.13.0-54.91                               all          Linux kernel version specific tools for version 3.13.0
   
  Userspace tool common name: /usr/bin/perf 
  Userspace rpm: linux-tools-common 
   The userspace tool has the following bit modes: 64-bit

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