fbc8207b73
Update to qemu 3.1.0-rc5. Is almost certainly the last rc, so should be same as 3.1.0 final. Putting into devel project 'early' because of SLE and Leap needs, not to get into Factory early. Look for the final 3.1 within a week. OBS-URL: https://build.opensuse.org/request/show/655897 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=433
44 lines
1.7 KiB
Diff
44 lines
1.7 KiB
Diff
From 18093a3b14c655d20f45966b99da7a8a0b93301b Mon Sep 17 00:00:00 2001
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From: Bruce Rogers <brogers@suse.com>
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Date: Fri, 13 Apr 2018 11:46:47 -0600
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Subject: [PATCH] tests: test-thread-pool is racy - add some barriers
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I imagine there is more to be done to fix the memory consistency
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races here, but these added barriers at least let it pass on ppc64le,
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whereas before it would fail regularly there.
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[BR: minor edits to pass qemu's checkpatch script]
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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tests/test-thread-pool.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/tests/test-thread-pool.c b/tests/test-thread-pool.c
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index 9cdccb3a47..2cbabaadd3 100644
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--- a/tests/test-thread-pool.c
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+++ b/tests/test-thread-pool.c
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@@ -171,6 +171,7 @@ static void do_test_cancel(bool sync)
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/* Cancel the jobs that haven't been started yet. */
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num_canceled = 0;
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for (i = 0; i < 100; i++) {
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+ smp_mb(); /* test is currently racy */
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if (atomic_cmpxchg(&data[i].n, 0, 3) == 0) {
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data[i].ret = -ECANCELED;
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if (sync) {
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@@ -185,6 +186,7 @@ static void do_test_cancel(bool sync)
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g_assert_cmpint(num_canceled, <, 100);
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for (i = 0; i < 100; i++) {
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+ smp_mb(); /* test is currently racy */
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if (data[i].aiocb && data[i].n != 3) {
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if (sync) {
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/* Canceling the others will be a blocking operation. */
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@@ -201,6 +203,7 @@ static void do_test_cancel(bool sync)
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}
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g_assert_cmpint(active, ==, 0);
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for (i = 0; i < 100; i++) {
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+ smp_mb(); /* test is currently racy */
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if (data[i].n == 3) {
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g_assert_cmpint(data[i].ret, ==, -ECANCELED);
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g_assert(data[i].aiocb == NULL);
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