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[Bug 1470578] [NEW] perf trace sleep 1 command is not giving any output

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From: Launchpad Bug Tracker <1470578@xxxxxxxxxxxxxxxxxx>
Date: Wed, 01 Jul 2015 20:44:37 -0000
Reply-to: Bug 1470578 <1470578@xxxxxxxxxxxxxxxxxx>
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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

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: architecture-ppc64le bot-comment bugnameltc-126351 severity-high targetmilestone-inin14043
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perf trace sleep 1 command is not giving any output
https://bugs.launchpad.net/bugs/1470578
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