From: Ingo Molnar <mingo@kernel.org>
To: Dmitry Safonov <dsafonov@virtuozzo.com>
Cc: linux-kernel@vger.kernel.org, 0x7f454c46@gmail.com,
mingo@redhat.com, luto@kernel.org, linux-mm@kvack.org,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Shuah Khan <shuahkh@osg.samsung.com>,
x86@kernel.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCHv10 2/2] selftest/x86: add mremap vdso test
Date: Fri, 8 Jul 2016 14:17:04 +0200 [thread overview]
Message-ID: <20160708121704.GA31371@gmail.com> (raw)
In-Reply-To: <20160628113539.13606-3-dsafonov@virtuozzo.com>
* Dmitry Safonov <dsafonov@virtuozzo.com> wrote:
> Or print that mremap for vDSO is unsupported:
> [root@localhost ~]# ./test_mremap_vdso_32
> AT_SYSINFO_EHDR is 0xf773c000
> [NOTE] Moving vDSO: [0xf773c000, 0xf773d000] -> [0xf7737000, 0xf7738000]
> [FAIL] mremap() of the vDSO does not work on this kernel!
Hm, I tried this on a 64-bit kernel and got:
triton:~/tip/tools/testing/selftests/x86> ./test_mremap_vdso_32
AT_SYSINFO_EHDR is 0xf7773000
[NOTE] Moving vDSO: [0xf7773000, 0xf7774000] -> [0xf776e000, 0xf776f000]
Segmentation fault
Thanks,
Ingo
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prev parent reply other threads:[~2016-07-08 12:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-28 11:35 [PATCHv10 0/2] mremap vDSO for 32-bit Dmitry Safonov
2016-06-28 11:35 ` [PATCHv10 1/2] x86/vdso: add mremap hook to vm_special_mapping Dmitry Safonov
2016-07-06 14:03 ` Andy Lutomirski
2016-06-28 11:35 ` [PATCHv10 2/2] selftest/x86: add mremap vdso test Dmitry Safonov
2016-07-08 12:17 ` Ingo Molnar [this message]
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