Bug 1720834

Summary:	with pmdalinux running, the system reaches 100% CPU usage and completely unresponsive to keyboard inputs.
Product:	[Fedora] Fedora	Reporter:	Harish Pillay <hpillay>
Component:	pcp	Assignee:	Nathan Scott <nathans>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	30	CC:	brolley, fche, lberk, mgoodwin, nathans, scox
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Last Closed:	2019-07-24 01:27:51 UTC	Type:	Bug
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Description Harish Pillay 2019-06-15 14:45:54 UTC

Description of problem:
When pmdalinux runs, it brings the CPU to 100% and the whole system stops responding to all user inputs. I have to kill the pmdalinux process before anything can be done.

Version-Release number of selected component (if applicable):
Fedora 30, pcp tools latest install.

How reproducible:
With F30, install pcp tools and let the system run for about 24 hrs. At some point pmdalinux runs and that essentially takes up all of the processing and the system is not responsive to keyboard inputs.

Steps to Reproduce:
1. In Fedora 30 (latest kernel), have pcp installed
2. enable pcp
3. wait for pmdalinux to run and the system will slow to a crawl

I have just unstalled pcp tools and will test to see if the system become unresponsive and update this bz.

Comment 1 Nathan Scott 2019-06-15 22:01:37 UTC

This sounds like a duplicate of BZ 1699232.  Updating to PCP version pcp-4.3.2 should fix it (not sure what version you have installed currently, not listed in the initial report).  If that doesn't resolve the issue, please run 'perf top' while the system is in this degraded mode and add the output here.  Thanks!

Comment 2 Harish Pillay 2019-06-16 00:34:04 UTC

Yes, I missed out listing the version number of PCP. I posted the bz after I uninstalled PCP. I would have to assume that it was the latest at that point. I will reinstalled PCP (which shows up as pcp-4.3.2-1.fc30. Hopefully this has no issues. Will monitor.

Comment 3 Nathan Scott 2019-07-24 01:27:51 UTC

Marking as most likely a duplicate - please reopen if this persists/reoccurs, thanks.

*** This bug has been marked as a duplicate of bug 1699232 ***