import rt-tests-2.1-3.el8
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From 6a3dd40539c1804db8b1fe1684afa5fa111636fe Mon Sep 17 00:00:00 2001
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From: John Kacur <jkacur@redhat.com>
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Date: Thu, 11 Nov 2021 08:56:54 -0500
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Subject: [PATCH] rt-tests: deadline_tests: Null check to prevent floating
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point exception
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Fix a floating point exception that can occur if sd->nr_adjust is 0
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by checking it before performing a division by zero.
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Signed-off-by: John Kacur <jkacur@redhat.com>
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---
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src/sched_deadline/deadline_test.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/src/sched_deadline/deadline_test.c b/src/sched_deadline/deadline_test.c
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index 53abd4d2ca6b..b7e1e045b57c 100644
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--- a/src/sched_deadline/deadline_test.c
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+++ b/src/sched_deadline/deadline_test.c
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@@ -2050,8 +2050,10 @@ int main(int argc, char **argv)
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printf("missed deadlines = %d\n", sd->missed_deadlines);
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printf("missed periods = %d\n", sd->missed_periods);
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printf("Total adjustments = %lld us\n", sd->total_adjust);
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- printf("# adjustments = %lld avg: %lld us\n",
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- sd->nr_adjust, sd->total_adjust / sd->nr_adjust);
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+ if (sd->nr_adjust) {
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+ printf("# adjustments = %lld avg: %lld us\n",
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+ sd->nr_adjust, sd->total_adjust / sd->nr_adjust);
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+ }
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printf("deadline : %lld us\n", sd->deadline_us);
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printf("runtime : %lld us\n", sd->runtime_us);
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printf("nr_periods : %lld\n", sd->nr_periods);
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--
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2.31.1
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@ -6,7 +6,7 @@ Name: rt-tests
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# Numa argument to make: NUMA=1
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#
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Version: 2.1
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Release: 2%{?dist}
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Release: 3%{?dist}
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License: GPLv2
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Group: Development/Tools
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URL: git://git.kernel.org/pub/scm/utils/rt-tests/rt-tests.git
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@ -22,6 +22,7 @@ Requires: bash bc
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#Patches
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Patch1: rt-tests-Add-missing-option-F-to-optstring.patch
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Patch2: rt-tests-deadline_tests-Null-check-to-prevent-exception.patch
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%description
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rt-tests is a set of programs that test and measure various components of
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@ -31,6 +32,7 @@ latency. It also tests the functioning of priority-inheritance mutexes.
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%prep
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%setup -q -n %{name}-%{version}
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%patch1 -p1
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%patch2 -p1
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%build
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%set_build_flags
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@ -85,6 +87,10 @@ rm -rf ${build_root}
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%{_mandir}/man8/determine_maximum_mpps.8.*
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%changelog
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* Fri Nov 12 2021 John Kacur <jkacur@redhat.com> - 2.1-3
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- Null check to prevent floating point exception in deadline test
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Resolves: rhbz#1995005
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* Tue Oct 12 2021 Leah Leshchinsky <lleshchi@redhat.com> - 2.1-2
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- Add missing option F to optstring
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Resolves: rhbz#2000974
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