From: Stefani Seibold <stefani@seibold.net>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
x86@kernel.org, tglx@linutronix.de, mingo@redhat.com,
ak@linux.intel.com, aarcange@redhat.com, john.stultz@linaro.org,
luto@amacapital.net, xemul@parallels.com, gorcunov@openvz.org,
andriy.shevchenko@linux.intel.com,
Martin.Runge@rohde-schwarz.com, Andreas.Brief@rohde-schwarz.com
Subject: Re: [PATCH 0/4] Add 32 bit VDSO time function support
Date: Thu, 30 Jan 2014 16:52:11 +0100 [thread overview]
Message-ID: <1391097131.2898.5.camel@wall-e.seibold.net> (raw)
In-Reply-To: <52EA704D.2000809@zytor.com>
Am Donnerstag, den 30.01.2014, 07:31 -0800 schrieb H. Peter Anvin:
> On 01/30/2014 02:49 AM, stefani@seibold.net wrote:
> > The VDSO page for a 32 bit resided now on 0xffffc000, followed by the VVAR and
> > HPET page.
>
> Any reason to not move the vdso base page to the top, in order to avoid
> breaking broken applications? It seems a fairly innocuous shuffle...
> probably little gain, but very little cost.
>
> -hpa
>
The reason is that i get need than an additional VMA for HPET and VVAR.
I seen no break of applications since the __FIXADDR_TOP is not on a fix
place. Lguest, XEN, OPLC and the reservetop Kernel Parameter will change
the VDSO Page Address.
- Stefani
next prev parent reply other threads:[~2014-01-30 15:51 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-30 10:49 [PATCH 0/4] Add 32 bit VDSO time function support stefani
2014-01-30 10:49 ` [PATCH 1/4] Make vsyscall_gtod_data handling x86 generic stefani
2014-01-30 18:05 ` Andy Lutomirski
2014-01-30 19:27 ` Stefani Seibold
2014-01-30 19:51 ` Andy Lutomirski
2014-01-30 20:19 ` Stefani Seibold
2014-01-31 0:10 ` Andi Kleen
2014-02-01 14:51 ` Stefani Seibold
2014-01-30 10:49 ` [PATCH 2/4] Add new func _install_special_mapping() to mmap.c stefani
2014-01-30 10:49 ` [PATCH 3/4] Add 32 bit VDSO support for 32 kernel stefani
2014-01-30 15:30 ` H. Peter Anvin
2014-01-30 15:53 ` Stefani Seibold
2014-01-30 18:17 ` Andy Lutomirski
2014-01-30 19:39 ` Stefani Seibold
2014-01-30 19:50 ` Andy Lutomirski
2014-01-30 10:49 ` [PATCH 4/4] Add 32 bit VDSO support for 64 kernel stefani
2014-01-30 18:21 ` Andy Lutomirski
2014-01-30 19:43 ` Stefani Seibold
2014-01-31 23:12 ` Andy Lutomirski
2014-01-30 15:31 ` [PATCH 0/4] Add 32 bit VDSO time function support H. Peter Anvin
2014-01-30 15:52 ` Stefani Seibold [this message]
2014-01-30 15:54 ` H. Peter Anvin
2014-01-30 17:57 ` Andy Lutomirski
2014-01-30 18:03 ` H. Peter Anvin
2014-01-30 18:08 ` Andy Lutomirski
-- strict thread matches above, loose matches on Subject: below --
2014-02-01 15:32 stefani
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