Merged update from upstream sources
This is an automated DistroBaker update from upstream sources. If you do not know what this is about or would like to opt out, contact the OSCI team. Source: https://src.fedoraproject.org/rpms/stalld.git#48b84729ed8e73ecec9853def1d89bf3c88eac85
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/stalld-1.0.tar.xz
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/stalld-1.1.tar.xz
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/stalld-1.2.tar.xz
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/stalld-1.4.tar.xz
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/stalld-1.6.tar.xz
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/stalld-1.8.tar.xz
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/stalld-1.9.tar.xz
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# stalld
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The stalld program (which stands for 'stall daemon') is a
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mechanism to prevent the *starvation* of operating system threads in a
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Linux system. The premise is to start up on a *housekeeping* cpu (one
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that is not used for real-application purposes) and to periodically
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monitor the state of each thread in the system, looking for a thread
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that has been on a run queue (i.e. ready to run) for a specifed length
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of time without being run. This condition is usually hit when the
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thread is on the same cpu as a high-priority cpu-intensive task and
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therefore is being given no opportunity to run.
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When a thread is judged to be starving, stalld changes
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that thread to use the SCHED_DEADLINE policy and gives the thread a
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small slice of time for that cpu (specified on the command line). The
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thread then runs and when that timeslice is used, the thread is then
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returned to its original scheduling policy and stalld then
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continues to monitor thread states.
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There is now an experimental option to boost using SCHED_FIFO. This
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logic is used if the running kernel does not support the
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SCHED_DEADLINE policy and may be forced by using the -F/--force_fifo
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option.
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## Command Line Options
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`Usage: stalld [-l] [-v] [-k] [-s] [-f] [-h] [-F]
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[-c cpu-list]
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[-p time in ns] [-r time in ns]
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[-d time in seconds] [-t time in seconds]`
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### Logging options
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- -l/--log_only: only log information (do not boost) [false]
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- -v/--verbose: print info to the std output [false]
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- -k/--log_kmsg: print log to the kernel buffer [false]
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- -s/--log_syslog: print log to syslog [true]
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### Startup options
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- -c/--cpu: list of cpus to monitor for stalled threads [all cpus]
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- -f/--foreground: run in foreground [false but true when -v]
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- -P/--pidfile: write daemon pid to specified file [no pidfile]
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### Boosting options
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- -p/--boost_period: SCHED_DEADLINE period [ns] that the starving task will receive [1000000000]
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- -r/--boost_runtime: SCHED_DEADLINE runtime [ns] that the starving task will receive [20000]
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- -d/--boost_duration: how long [s] the starving task will run with SCHED_DEADLINE [3]
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- -F/--force_fifo: force using SCHED_FIFO for boosting
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### Monitoring options
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- -t/--starving_threshold: how long [s] the starving task will wait before being boosted [60]
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- -A/--aggressive_mode: dispatch one thread per run queue, even when there is no starving
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threads on all CPU (uses more CPU/power). [false]
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### Miscellaneous
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- -h/--help: print this menu
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SHA512 (stalld-1.9.tar.xz) = f64d870b9f7883142289f1e92400733d39ff4f39550aa66663de49a230aceae54fc37bc175beda687ffc4316440425db39e1705e9ffd527672d5b4121200febb
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Name: stalld
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Version: 1.9
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Release: 1%{?dist}
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Summary: Daemon that finds starving tasks and gives them a temporary boost
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License: GPLv2
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URL: https://git.kernel.org/pub/scm/utils/stalld/stalld.git
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Source0: https://jcwillia.fedorapeople.org/%{name}-%{version}.tar.xz
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BuildRequires: glibc-devel
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BuildRequires: gcc
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BuildRequires: make
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BuildRequires: systemd-rpm-macros
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Requires: systemd
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%description
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The stalld program monitors the set of system threads,
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looking for threads that are ready-to-run but have not
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been given processor time for some threshold period.
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When a starving thread is found, it is given a temporary
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boost using the SCHED_DEADLINE policy. The default is to
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allow 10 microseconds of runtime for 1 second of clock time.
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%prep
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%autosetup
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%build
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%make_build CFLAGS="%{optflags} %{build_cflags} -DVERSION="\\\"%{version}\\\""" LDFLAGS="%{build_ldflags}"
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%install
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%make_install DOCDIR=%{_docdir} MANDIR=%{_mandir} BINDIR=%{_bindir} DATADIR=%{_datadir} VERSION=%{version}
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%make_install -C redhat UNITDIR=%{_unitdir}
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%files
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%{_bindir}/%{name}
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%{_bindir}/throttlectl
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%{_unitdir}/%{name}.service
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%config(noreplace) %{_sysconfdir}/sysconfig/stalld
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%doc %{_docdir}/README.md
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%doc %{_mandir}/man8/stalld.8*
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%license gpl-2.0.txt
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%post
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%systemd_post %{name}.service
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%preun
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%systemd_preun %{name}.service
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%postun
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%systemd_postun_with_restart %{name}.service
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%changelog
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* Wed Feb 17 2021 Clark Williams <williams@redhat.com> - 1.9-1
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- Set starvation threshold default to 30 seconds
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- rework read buffer allocation to properly find page size
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- Add the -g/--granularity option
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- Change the default granularity to five seconds
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- Implement idle detection
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- Implement the single-threaded mode
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- Add HRTICK_DL support
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* Fri Feb 5 2021 Clark Williams <williams@redhat.com> - 1.8-1
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- Fix Readiness Protocol Mismatch with systemd
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- test01: update to use buildin atomic operations
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- test01: add throttling check
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* Tue Feb 2 2021 Clark Williams <williams@redhat.com> - 1.7-1
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- rework detect_task_format and buffer_size logic
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- make CFLAGS for local compile match rpmbuild CFLAGS
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* Tue Jan 26 2021 Clark Williams <williams@redhat.com> - 1.6-1
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- add systemd handling of RT Throttling
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* Wed Jan 20 2021 Clark Williams <williams@redhat.com> - 1.5-1
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- fix signal handler to catch SIGTERM
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* Fri Dec 11 2020 Clark Williams <williams@redhat.com> - 1.4-1
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- stalld: Set rt_runtime to -1 before trying the SCHED_DEADLINE
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- Fix incorrect recursion of specfile version field
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* Fri Nov 20 2020 Clark Williams <williams@redhat.com> - 1.3-1
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- Readme: Add information about repositories
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- Add version management and version option
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- create doc and scripts directory and add info on releases
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* Mon Nov 2 2020 Clark Williams <williams@redhat.com> - 1.2-1
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- utils.c: added info() functions
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- detect and correctly parse old-style /proc/sched_debug
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- src/stalld: Fix an retval check while reading sched_debug
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- src/throttling: Fix a compilation warning
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- ensure we only count task lines in old-format sched_debug info
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- Add comments, clean up trailing whitespace
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- src/utils: Fix runtime parameters check
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- stalld: Do not take actions if log_only is set
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- remove warning from parse_old_task_format
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* Tue Oct 27 2020 Clark Williams <williams@redhat.com> - 1.1-1
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- Fix an option in README.md; consistency in user facing docs.
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- Makefile: add 'static' target to link stalld statically
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- gitignore: ignore object files and the stalld executable
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- use FIFO for boosting (v3)
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- stalld.c: fix sched_debug parsing and modify waiting task parsing
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- redhat: update release for features and bugfix
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- stalld: Do not die if sched_debug returns an invalid value
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- src/stalld: Do not die if the comm is too large
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- src/stalld: Do not die if cannot write a message to the log
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- src/stalld: Do not die if the main runs while a thread is monitoring the CPU
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- implement RT throttling management and refactor source files
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- more refactoring
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- src/stalld: Reuse already read nr_running nr_rt_running
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- src/stalld: Gracefully handle CPUs not found on sched_debug
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- src/stalld: Use dynamically allocated memory to read sched_debug
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- src/utils: Die with a divizion by zero if verbose
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- src/stalld: Add config_buffer_size variable
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- src/stalld: Increase the sched_debug read buffer if it gets too small
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- src/stalld: Fix an retval check while reading sched_debug
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- src/throttling: Fix a compilation warning
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* Sun Oct 4 2020 Clark Williams <williams@redhat.com> - 1.0-4
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- Fix an option in README.md; consistency in user facing docs.
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- gitignore: ignore object files and the stalld executable
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- Makefile: add 'static' target to link stalld statically
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- use FIFO for boosting (v3)
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- stalld: update usage message to include --force_fifo/-F option
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- stalld.c: fix sched_debug parsing and modify waiting task parsing
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* Tue Sep 1 2020 Clark Williams <williams@redhat.com> - 1.0-3
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- Place BuildRequires on individual lines
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- Fix changelog notations
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- Modify build command to pass in CFLAGS and LDFLAGS
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- fix compiler warnings in stalld.c
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* Mon Aug 31 2020 Clark Williams <williams@redhat.com> - 1.0-2
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- use _docdir macro for README.md
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- use _mandir macro for stalld.8 manpage
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- use tabs for spacing
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- added push Makefile target to copy latest to upstream URL
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* Tue Aug 25 2020 Clark Williams <williams@redhat.com> - 1.0-1
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- rename project to stalld
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- set version to 1.0
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- clean up rpmlint complaints
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* Fri Aug 21 2020 Clark Williams <williams@redhat.com> - 0.2-1
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- add pidfile logic
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* Thu Aug 20 2020 Clark Williams <williams@redhat.com> - 0.1-1
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- Added systemd service to redhat subdirectory
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- added make and rpm logic for systemd files
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* Wed Aug 19 2020 Clark Williams <williams@redhat.com> - 0.0-1
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- initial version of specfile
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- Makefile mods for RPM builds
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- added systemd service and config files
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