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[66.91.136.155]) by smtp.gmail.com with ESMTPSA id z16sm27216482pff.125.2020.01.16.10.31.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 16 Jan 2020 10:31:03 -0800 (PST) Subject: Re: [PATCH 0/3] linux-user: Implement x86_64 vsyscalls To: =?UTF-8?Q?Alex_Benn=c3=a9e?= References: <20200114210921.11216-1-richard.henderson@linaro.org> <87imlblbi3.fsf@linaro.org> From: Richard Henderson Message-ID: <7435787b-7bf0-66c6-b520-120fa74904b8@linaro.org> Date: Thu, 16 Jan 2020 08:31:00 -1000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <87imlblbi3.fsf@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::541 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org, pbonzini@redhat.com, riku.voipio@iki.fi, laurent@vivier.eu, peter.maydell@linaro.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 1/16/20 4:30 AM, Alex Bennée wrote: > /x86_64-linux-user/qemu-x86_64 ~/lsrc/linux.git/tools/testing/selftests/x86/test_vsyscall_64 > [WARN] failed to find vDSO > no vsyscall map in /proc/self/maps > [RUN] test gettimeofday() > [RUN] test time() > [RUN] getcpu() on CPU 0 > [RUN] getcpu() on CPU 1 > [RUN] Checking read access to the vsyscall page > [OK] We do not have read access: #PF(0x4) > [RUN] Make sure that vsyscalls really page fault > ** > ERROR:/home/alex/lsrc/qemu.git/linux-user/x86_64/../i386/cpu_loop.c:185:emulate_vsyscall: assertion failed: (ret != -TARGET_EFAULT) > qemu:handle_cpu_signal received signal outside vCPU context @ pc=0x7f6eed31b613 Ok, thanks. r~