[PULL 30/39] tests/tcg: Extend file in linux-madvise.c

Richard Henderson posted 39 patches 9 months, 1 week ago
Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Riku Voipio <riku.voipio@iki.fi>, Warner Losh <imp@bsdimp.com>, Kyle Evans <kevans@freebsd.org>, Stefan Berger <stefanb@linux.vnet.ibm.com>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Yanan Wang <wangyanan55@huawei.com>, Laurent Vivier <laurent@vivier.eu>, Peter Xu <peterx@redhat.com>, Fabiano Rosas <farosas@suse.de>, David Hildenbrand <david@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Nicholas Piggin <npiggin@gmail.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, "Cédric Le Goater" <clg@kaod.org>, "Alex Bennée" <alex.bennee@linaro.org>, Yoshinori Sato <ysato@users.sourceforge.jp>
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[PULL 30/39] tests/tcg: Extend file in linux-madvise.c
Posted by Richard Henderson 9 months, 1 week ago
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>
---
 tests/tcg/multiarch/linux/linux-madvise.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/tcg/multiarch/linux/linux-madvise.c b/tests/tcg/multiarch/linux/linux-madvise.c
index 29d0997e68..539fb3b772 100644
--- a/tests/tcg/multiarch/linux/linux-madvise.c
+++ b/tests/tcg/multiarch/linux/linux-madvise.c
@@ -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);
 
-- 
2.34.1