Bug 6120

Summary:	perf top command does not work on QemuPPC
Product:	[Runtime] General Runtime	Reporter:	Catalin Scrieciu <catalin.scrieciu>
Component:	General Runtime	Assignee:	dengke <dengke.du>
Status:	RESOLVED NOTABUG	QA Contact:
Severity:	normal
Priority:	Medium	CC:	alexandra.safta, dvhart, richard.purdie, sgw
Version:	1.6
Target Milestone:	2.2 M3
Hardware:	x86
OS:	ppc
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	Don't know

Description Catalin Scrieciu 2014-04-04 13:00:32 UTC

While running the tools on target tests we discovered an issue when executing the "perf top" command"


root@qemuppc:~#perf top

Failed to open /tmp/perf-485.map, continuing without symbols

After the message above is displayed no prompt is returned and the target freezes.

Comment 1 Alexandra Safta 2014-04-08 07:13:29 UTC

Test object: 1.6_M5_RC2:3e528d3e4bc542ca2f654c54363c56af0fb9f61b
Test target: qemuPPC
Test host: Ubuntu 12.04

Comment 2 Darren Hart 2014-04-10 14:43:53 UTC

Does this only fail on PPC?

Comment 3 Alexandra Safta 2014-04-10 14:51:12 UTC

Yes, this worked fine on QemuARM.

Comment 4 Darren Hart 2014-04-10 14:52:31 UTC

This does work on x86 for me, this appears to be ppc specific. Enea, can you dig into this some more?

Comment 5 Chunrong Guo 2014-05-13 03:06:57 UTC

"perf top" command work well on p1022ds.
I think this is about qemppc kernel issue.

Comment 6 Catalin Scrieciu 2014-06-10 09:25:17 UTC

We at Enea have encountered the same issue in our Yocto based distribution also and this will be investigated in the near future. The investigation of this bug will be included in one of the next sprints. We will get back with information regarding this.

Comment 7 Stephen K Jolley 2014-06-18 17:41:02 UTC

Assigned to person we are requesting info from per RP.

Comment 8 Richard Purdie 2014-07-24 15:03:39 UTC

Bug will be worked on Status -> Accepted

Comment 9 dengke 2016-08-01 01:37:53 UTC

This works on my build.

../conf/local.conf:
......
IMAGE_INSTALL_append = " perf perf-doc"

Comment 10 dengke 2016-08-01 09:00:28 UTC

Now, this wroks for my build.

//dengke