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8280056: gtest/LargePageGtests.java#use-large-pages failed "os.release_one_mapping_multi_commits_vm"

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Reviewed-by: stuefe, gziemski
This commit is contained in:
Afshin Zafari 2024-01-12 08:21:42 +00:00
parent 82a63a03c0
commit 66520be7a7
1 changed files with 15 additions and 10 deletions
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25
test/hotspot/gtest/runtime/test_os.cpp
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@ -507,7 +507,9 @@ TEST_VM(os, release_multi_mappings) {
// ...re-reserve the middle stripes. This should work unless release silently failed.
address p2 = (address)os::attempt_reserve_memory_at((char*)p_middle_stripes, middle_stripe_len);
ASSERT_EQ(p2, p_middle_stripes);
PRINT_MAPPINGS("C");
// Clean up. Release all mappings.
@ -551,26 +553,29 @@ TEST_VM(os, release_bad_ranges) {
TEST_VM(os, release_one_mapping_multi_commits) {
// Test that we can release an area consisting of interleaved
// committed and uncommitted regions:
const size_t stripe_len = 4 * M;
const int num_stripes = 4;
const size_t stripe_len = os::vm_allocation_granularity();
const int num_stripes = 6;
const size_t total_range_len = stripe_len * num_stripes;
// reserve address space...
address p = reserve_one_commit_multiple(num_stripes, stripe_len);
ASSERT_NE(p, (address)NULL);
PRINT_MAPPINGS("A");
ASSERT_NE(p, (address)nullptr);
// .. release it...
ASSERT_TRUE(os::release_memory((char*)p, total_range_len));
// // make things even more difficult by trying to reserve at the border of the region
address border = p + num_stripes * stripe_len;
address p2 = (address)os::attempt_reserve_memory_at((char*)border, stripe_len);
PRINT_MAPPINGS("B");
// re-reserve it. This should work unless release failed.
address p2 = (address)os::attempt_reserve_memory_at((char*)p, total_range_len);
ASSERT_EQ(p2, p);
PRINT_MAPPINGS("C");
ASSERT_TRUE(p2 == nullptr || p2 == border);
ASSERT_TRUE(os::release_memory((char*)p, total_range_len));
PRINT_MAPPINGS("D");
PRINT_MAPPINGS("C");
if (p2 != nullptr) {
ASSERT_TRUE(os::release_memory((char*)p2, stripe_len));
PRINT_MAPPINGS("D");
}
}
static void test_show_mappings(address start, size_t size) {