Re: [BUG} t2201.7+ Failure to Create Thread in 2.39.0-rc0

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[CC-ing Jeff, this is from the "stopwatch timers" topic]

On Thu, Nov 24 2022, rsbecker@xxxxxxxxxxxxx wrote:

> While running t2201.7 (and subsequent) for 2.39.0-rc0, I hit a condition
> where:

Don't you mean t0211-trace2-perf.sh?

> <snip>
> + test_when_finished rm trace.perf actual
> + test_config_global trace2.perfBrief 1
> + pwd
> + test_config_global trace2.perfTarget
> /home/ituglib/randall/jenkins/.jenkins/workspace/Git_Pipeline/t/trash
> directory.t0211-trace2-perf/trace.perf
> + test-tool trace2 101timer 5 10 3
> fatal: failed to create thread[0]
>
> was encountered, causing the test to fail. Pointers on resolving this would
> be helpful.

Apparently we really could use a NO_PTHREADS=Y CI setup, because that's
all that's needed to reproduce this on linux & elsewhere. Running the
test with that:
	
	+ test-tool trace2 101timer 5 10 3
	fatal: failed to create thread[0]
	error: last command exited with $?=128

For that all that's needed is this:
	
	diff --git a/t/t0211-trace2-perf.sh b/t/t0211-trace2-perf.sh
	index 0b3436e8cac..cfba6861322 100755
	--- a/t/t0211-trace2-perf.sh
	+++ b/t/t0211-trace2-perf.sh
	@@ -203,7 +203,7 @@ test_expect_success 'stopwatch timer test/test1' '
	 	have_timer_event "main" "timer" "test" "test1" 5 actual
	 '
	 
	-test_expect_success 'stopwatch timer test/test2' '
	+test_expect_success PTHREADS 'stopwatch timer test/test2' '
	 	test_when_finished "rm trace.perf actual" &&
	 	test_config_global trace2.perfBrief 1 &&
	 	test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&
	@@ -249,7 +249,7 @@ test_expect_success 'global counter test/test1' '
	 	have_counter_event "main" "counter" "test" "test1" 15 actual
	 '
	 
	-test_expect_success 'global counter test/test2' '
	+test_expect_success PTHREADS 'global counter test/test2' '
	 	test_when_finished "rm trace.perf actual" &&
	 	test_config_global trace2.perfBrief 1 &&
	 	test_config_global trace2.perfTarget "$(pwd)/trace.perf" &&

I think that's the correct fix here, and it should go into rc1.



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