Date: Mon, 9 Mar 2015 09:55:48 +0000 (UTC) From: Ji-Haw Foo <foojihaw@yahoo.com> To: =?UTF-8?Q?Mika=C3=ABl_Urankar?= <mikael.urankar@gmail.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: porting node to Pi Message-ID: <686713608.847728.1425894948596.JavaMail.yahoo@mail.yahoo.com> In-Reply-To: <CAJwjRmT6hGZry07MFJj%2Be2QvWyjhitivravE1C00GLJTey3Tpw@mail.gmail.com> References: <CAJwjRmT6hGZry07MFJj%2Be2QvWyjhitivravE1C00GLJTey3Tpw@mail.gmail.com>
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Sorry for the delay. Love to unblock node for FreeB+Pi!=20
On Monday, March 2, 2015 1:36 AM, Mika=C3=ABl Urankar <mikael.urankar@=
gmail.com> wrote:
=20
2015-03-02 10:14 GMT+01:00 Ji-Haw Foo <foojihaw@yahoo.com>:
> Would you know what's missing in FreeBSD that stops 0.12.x from working? =
I
> have 0.12.x on Debian on Pi.
Ok, I've made a mistake in my previous statement. I will have a look
at www/node later today, do you want to help?
From owner-freebsd-arm@FreeBSD.ORG Mon Mar 9 09:58:21 2015
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Subject: Re: porting node to Pi
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How can I help?=20
On Monday, March 9, 2015 2:55 AM, Ji-Haw Foo <foojihaw@yahoo.com> wrot=
e:
=20
Sorry for the delay. Love to unblock node for FreeB+Pi!=20
On Monday, March 2, 2015 1:36 AM, Mika=C3=ABl Urankar <mikael.urankar@=
gmail.com> wrote:
=20
2015-03-02 10:14 GMT+01:00 Ji-Haw Foo <foojihaw@yahoo.com>:
> Would you know what's missing in FreeBSD that stops 0.12.x from working? =
I
> have 0.12.x on Debian on Pi.
Ok, I've made a mistake in my previous statement. I will have a look
at www/node later today, do you want to help?
=20
From owner-freebsd-arm@FreeBSD.ORG Mon Mar 9 12:16:41 2015
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Date: Mon, 9 Mar 2015 12:16:41 +0000
To: freebsd-arm@freebsd.org
From: "zbb (Zbigniew Bodek)" <phabric-noreply@FreeBSD.org>
Subject: [Differential] [Commented On] D2017: Allow to disable alignment
faults in the kernel configuration file
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zbb added a comment.
**Jakub Palider wrote:**
(NOTE)
Unaligned access is controlled by two bits in SCTRL register on ARMv6+
architectures, the U bit for unaligned support (on ARMv7+ always set)
and the A bit. This patch refers to bit A only, so we can just tell the
processor not to raise exception when such situation happens, but rather
silently perform additional fetches etc. I believe that has nothing to
do with userspace, unless someone aims at fine-tuning their application
and wants notification on unaligned accesses just to eventually get rid
of them, but that is another story. In kernel we do have unaligned
accesses, so extra handling results in unnecessary overhead and
performance degradation.
REVISION DETAIL
https://reviews.freebsd.org/D2017
To: zbb, ian, andrew, imp
Cc: freebsd-arm
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