https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276962
Bug ID: 276962
Summary: mac_priority(4) doesn't affect sched_setscheduler(2)
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Attachment #248339 text/plain
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Created attachment 248339
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=248339&action=edit
test_sched.c (example)
Setting real-time priority (via POSIX API) as regular user doesn't seem to work
for non-threaded programs.
$ kldload mac_priority
$ pw group mod realtime -m ${USER:-$(id -u)}
$ cc -o test_sched test_sched.c; ./test_sched
test_sched: FAILED: cannot set real-time scheduling priority to 0: Operation
not permitted
$ cc -DTHREADS -pthread -o test_sched test_sched.c; ./test_sched
test_sched: SUCCESS: set real-time scheduling priority to 0
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