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Description of problem:
Please update trace-cmd record to support --no-filter option.
trace-cmd record in RHEL-7 supports --no-filter option:
RHEL-7 package:
https://brewweb.engineering.redhat.com/brew/buildinfo?buildID=886630
* Tue Apr 23 2019 John Kacur <jkacur> - 2.7-2
- Optimize how pid filters are expresssed
- Add a --no-filter option
Resolves: rhbz#1472631
See also
https://bugzilla.redhat.com/show_bug.cgi?id=1472631#c18
We need the same option (--no-filter) to be available in RHEL-8 as well. Could we please update trace-cmd record in RHEL-8?
Version-Release number of selected component (if applicable):
Name : trace-cmd
Version : 2.7
Release : 8.el8
Architecture: x86_64
How reproducible:
trace-cmd record --no-filter -e sched:sched_migrate_task sleep 10
Actual results:
record: unrecognized option '--no-filter'
Expected results:
Succesfull trace-cmd record execution, same as in RHEL-7
FYI - we are using this to WA missing --no-filter option:
trace-cmd record -e sched:sched_migrate_task sleep 10 &
echo 0 > /sys/kernel/debug/tracing/events/sched/filter
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (trace-cmd bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2021:1725