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Re: [PATCH 0/3] linux-user: Implement x86_64 vsyscalls

From: Richard Henderson
Subject: Re: [PATCH 0/3] linux-user: Implement x86_64 vsyscalls
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

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.


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