From: Robin Holt <holt@sgi.com>
To: Chuck Lever <chuck.lever@oracle.com>, tony.luck@intel.com
Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: kernel unaligned accesses on 2.6.29.
Date: Wed, 25 Mar 2009 01:21:01 +0000 [thread overview]
Message-ID: <20090325012101.GC8908@sgi.com> (raw)
In-Reply-To: <20090325011418.GB8908@sgi.com>
On Tue, Mar 24, 2009 at 08:14:18PM -0500, Robin Holt wrote:
> Had a few minutes to look around.
...
> This one is:
> u64 *p = (u64 *)&nsm->sm_priv.data;
> ...
> *p = (unsigned long)nsm;
...
> > e3d0: 0a 60 28 1c 8d 39 [MMI] cmp4.eq p12,p13\x10,r14;;
> > e3d6: 00 a8 95 30 23 00 st8 [r37]=r53
>
Well, that was easy. This is the store part of
*p++ = timespec_to_ns(&ts);
Again, comes down to &nsm->sm_priv.data not being aligned.
Robin
next prev parent reply other threads:[~2009-03-25 1:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-24 17:28 kernel unaligned accesses on 2.6.29 Robin Holt
2009-03-25 1:14 ` Robin Holt
2009-03-25 1:21 ` Robin Holt [this message]
2009-03-25 2:04 ` David Miller
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