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[217.132.71.241]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49cdce10148sm18749815e9.5.2026.08.31.14.22.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Aug 2026 14:22:18 -0700 (PDT) From: Roi Klevansky To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= , Laurent Vivier , Helge Deller , Pierrick Bouvier , Roi Klevansky Subject: [PATCH 2/2] tests/tcg: add linux-user test for madvise returning ENOMEM Date: Tue, 1 Sep 2026 00:20:40 +0300 Message-ID: <20260831212040.1833650-3-roiklevansky@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260831212040.1833650-1-roiklevansky@gmail.com> References: <20260831212040.1833650-1-roiklevansky@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::32c; envelope-from=roiklevansky@gmail.com; helo=mail-wm1-x32c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 31 Aug 2026 19:54:06 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add tests for madvise() under linux-user with partially and fully unmapped address ranges, making sure it returns ENOMEM, just like the kernel does. Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/4382 Signed-off-by: Roi Klevansky --- tests/tcg/multiarch/linux/linux-madvise.c | 43 +++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/tests/tcg/multiarch/linux/linux-madvise.c b/tests/tcg/multiarch/linux/linux-madvise.c index 539fb3b772..b7a52abb6c 100644 --- a/tests/tcg/multiarch/linux/linux-madvise.c +++ b/tests/tcg/multiarch/linux/linux-madvise.c @@ -1,4 +1,5 @@ #include +#include #include #include #include @@ -63,10 +64,52 @@ static void test_file(void) assert(ret == 0); } +static void test_mapped_and_unmapped(void) +{ + int pagesize = getpagesize(); + void *page; + int ret; + + page = mmap(NULL, pagesize, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); + assert(page != MAP_FAILED); + + ret = madvise(page, pagesize, MADV_NORMAL); + assert(ret == 0); + + ret = munmap(page, pagesize); + assert(ret == 0); + + ret = madvise(page, pagesize, MADV_NORMAL); + assert(ret == -1); + assert(errno == ENOMEM); +} + +static void test_partially_unmapped_enomem(void) +{ + int pagesize = getpagesize(); + void *page; + int ret; + + page = mmap(NULL, 3 * pagesize, PROT_READ, + MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); + assert(page != MAP_FAILED); + ret = munmap((char *)page + pagesize, pagesize); + assert(ret == 0); + + ret = madvise(page, 3 * pagesize, MADV_NORMAL); + assert(ret == -1); + assert(errno == ENOMEM); + + ret = munmap(page, 3 * pagesize); + assert(ret == 0); +} + int main(void) { test_anonymous(); test_file(); + test_mapped_and_unmapped(); + test_partially_unmapped_enomem(); return EXIT_SUCCESS; } -- 2.55.0