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tests/tcg: Extend file in linux-madvise.c

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When guest page size > host page size, this test can fail
due to the SIGBUS protection hack.  Avoid this by making
sure that the file size is at least one guest page.

Visible with alpha guest on x86_64 host.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-26-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-01-02 12:58:00 +11:00
parent e9206163d9
commit 6ada861951
1 changed files with 2 additions and 0 deletions
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2
tests/tcg/multiarch/linux/linux-madvise.c
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@ -42,6 +42,8 @@ static void test_file(void)
assert(ret == 0);
written = write(fd, &c, sizeof(c));
assert(written == sizeof(c));
ret = ftruncate(fd, pagesize);
assert(ret == 0);
page = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE, fd, 0);
assert(page != MAP_FAILED);