From: Johannes Erdfelt <johannes@erdfelt.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: [PATCH] avoid unaligned access to data
Date: Sat, 13 Mar 2004 16:57:04 +0000 [thread overview]
Message-ID: <20040313165704.GC31201@sventech.com> (raw)
In-Reply-To: <20040229204531.GA25308@suse.de>
On Fri, Mar 12, 2004, Greg KH <greg@kroah.com> wrote:
> On Sat, Mar 13, 2004 at 12:59:39AM +0100, Olaf Hering wrote:
> > it complains about unaligned memory access.
> >
> > udevinfo(4922): unaligned access to 0x6000000000015747, ip=0x4000000000001dd0
> So all userspace programs have to be modified to prevent this from
> happening?
>
> Does it cause a segfault, or just a warning in the syslog?
>
> Seems like a pretty stupid architecture to be complaining of this :)
Most architectures don't allow unaligned accesses. x86 is one of the few
that does allow it.
Linux ia64 will perform unaligned accesses in software for userspace
programs when the trap occurs, but will also print a warning.
JE
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prev parent reply other threads:[~2004-03-13 16:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-29 20:45 [PATCH] avoid unaligned access to data Olaf Hering
2004-03-05 22:21 ` Olaf Hering
2004-03-12 23:40 ` Greg KH
2004-03-12 23:41 ` Greg KH
2004-03-12 23:59 ` Olaf Hering
2004-03-13 0:03 ` Olaf Hering
2004-03-13 0:11 ` Greg KH
2004-03-13 9:58 ` Olaf Hering
2004-03-13 16:57 ` Johannes Erdfelt [this message]
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