caiyinyu d4ccda8e69
malloc: Fix tst bug in malloc/tst-free-errno-malloc-hugetlb1. ...
When transparent hugepages (THP) are configured to 32MB on x86/loongarch
systems, the current big_size value may not be sufficiently large to
guarantee that free(ptr) [1] will call munmap(ptr_aligned, big_size).
Tested on x86_64 and loongarch64.
PS: Without this patch and using 32M THP, there is a about 50% chance
that malloc/tst-free-errno-malloc-hugetlb1 will fail on both x86_64 and
loongarch64.
[1] malloc/tst-free-errno.c:
...
errno = 1789;
/* This call to free() is supposed to call
munmap (ptr_aligned, big_size);
which increases the number of VMAs by 1, which is supposed
to fail. */
-> free (ptr);
TEST_VERIFY (get_errno () == 1789);
}
...
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com >
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d4ccda8e69