Your message dated Sun, 3 Aug 2008 09:04:12 +0300
with message-id <[EMAIL PROTECTED]>
and subject line Re: Bug#397616: /proc/cpu/alignment should default to warn and
fixup on arm
has caused the Debian Bug report #397616,
regarding [arm] /proc/cpu/alignment should default to warn and fixup
* Riku Voipio <[EMAIL PROTECTED]> [2008-05-04 22:07]:
> 2) warnings can cause bad side-effects (imagine a unaligned
> error in sysklogd..)
>
> http://thread.gmane.org/gmane.linux.ports.arm.kernel/34044
I think that's a good argument for not changing the upstream default.
So I think we should clos
I think this should be pushed via upstream. In the following
thread, it seems to be concluded that 1) fixups should be default
2) warnings can cause bad side-effects (imagine a unaligned
error in sysklogd..)
http://thread.gmane.org/gmane.linux.ports.arm.kernel/34044
On Fri, Apr 25, 2008 at 03:12:
In order of preference
2 or 3: fixup misaligned accesses
4 or 5: SIGBUS the process in question, rather than silently giving
the wrong results (it is the same logic as dividing by zero or
accessing memory through an invalid pointer).
0 or 1: silently give wrong results.
I'm afraid the linked IRC d
I'd like to hear Riku's opinion on this.
But I'm inclined not to move away from the upstream default, although
I must admit that Sjoerd has good arguments for changing it.
Maybe you could ask upstream whether it's time to change the default
to a warning?
* Sjoerd Simons <[EMAIL PROTECTED]> [200
* Sjoerd Simons <[EMAIL PROTECTED]> [2006-11-08 14:02]:
> By default the ARM kernel just ignores unaligned accesses from
> userspace and can just accesses another address then actually
> specified. This can cause strange behaviour by userspace programs.
...
Nothing has been done with regards
* Sjoerd Simons <[EMAIL PROTECTED]> [2006-11-08 21:07]:
> Sure, wookey had some extra comments after i asked for permission to post it
> so
> i've added those too:
> http://beast.luon.net/~sjoerd/arm_unaligned.log
http://netwinder.osuosl.org/users/b/brianbr/public_html/alignment.html
Ok, thank
On Wed, Nov 08, 2006 at 06:46:38PM +, Martin Michlmayr wrote:
> * Sjoerd Simons <[EMAIL PROTECTED]> [2006-11-08 14:02]:
> > Some discussion on #debian-arm indicates that it the current default
>
> Can you make logs of that discussion available?
Sure, wookey had some extra comments after i a
* Sjoerd Simons <[EMAIL PROTECTED]> [2006-11-08 14:02]:
> Some discussion on #debian-arm indicates that it the current default
Can you make logs of that discussion available?
--
Martin Michlmayr
http://www.cyrius.com/
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> retitle 397616 [arm] /proc/cpu/alignment should default to warn and fixup on
> arm
Bug#397616: /proc/cpu/alignment should default to warn and fixup on arm
Changed Bug title.
> thanks
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Package: linux-2.6
Severity: normal
Hi,
By default the ARM kernel just ignores unaligned accesses from
userspace and can just accesses another address then actually
specified. This can cause strange behaviour by userspace programs.
While i agree that these programs are somewhat buggy, b
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