Bug 2121037

Summary:	kernelshark unable to read trace.dat
Product:	[Fedora] Fedora	Reporter:	Bruno Wolff III <bruno>
Component:	libtracecmd	Assignee:	Zamir SUN <sztsian>
Status:	CLOSED ERRATA	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	jmarchan, skozina, sztsian
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	libtracecmd-1.1.3-3.fc38 libtracecmd-1.1.3-4.fc37	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-09-08 15:00:28 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Bruno Wolff III 2022-08-24 10:32:19 UTC

Description of problem:
I was unable to get kernelshark to read trace.dat from a dump of mac80211.

Version-Release number of selected component (if applicable):

kernelshark-2.1.0-2.fc37.x86_64

How reproducible:
On that file it happened repeatably.

Steps to Reproduce:
1. trace-cmd record -e mac80211 (as root)
2. kernelshark (as normal user with read access to trace.dat)
3.

Actual results:
[bruno@laptop1 ~]$ kernelshark
loading plugin "sched_events" from /usr/lib64/kernelshark/plugins/plugin-sched_events.so
loading plugin "event_field_plot" from /usr/lib64/kernelshark/plugins/plugin-event_field_plot.so
loading plugin "latency_plot" from /usr/lib64/kernelshark/plugins/plugin-latency_plot.so
loading plugin "kvm_combo" from /usr/lib64/kernelshark/plugins/plugin-kvm_combo.so
loading plugin "missed_events" from /usr/lib64/kernelshark/plugins/plugin-missed_events.so
Loading  "trace.dat"
version = 7
libtracecmd: No such file or directory
  Unsupported file compression zstd 1.5.2
ERROR: -17 while opening file  "trace.dat"
ERROR: File trace.dat contains no data.


Expected results:


Additional info:
libtracecmd is installed.

Comment 1 Fedora Update System 2022-09-08 14:57:24 UTC

FEDORA-2022-2ffb2d1bdd has been submitted as an update to Fedora 38. https://bodhi.fedoraproject.org/updates/FEDORA-2022-2ffb2d1bdd

Comment 2 Fedora Update System 2022-09-08 15:00:28 UTC

FEDORA-2022-2ffb2d1bdd has been pushed to the Fedora 38 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2022-09-08 15:26:51 UTC

FEDORA-2022-e222b2c80a has been submitted as an update to Fedora 37. https://bodhi.fedoraproject.org/updates/FEDORA-2022-e222b2c80a

Comment 4 Fedora Update System 2022-09-09 10:09:01 UTC

FEDORA-2022-e222b2c80a has been pushed to the Fedora 37 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2022-e222b2c80a`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2022-e222b2c80a

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2022-09-14 00:21:48 UTC

FEDORA-2022-e222b2c80a has been pushed to the Fedora 37 stable repository.
If problem still persists, please make note of it in this bug report.