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From: alexmcwhirter@triadic.us
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Miller <davem@davemloft.net>,
	rlwinm@sdf.org, chunkeey@googlemail.com,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, Al Viro <viro@ftp.linux.org.uk>
Subject: Re: PROBLEM: network data corruption (bisected to e5a4b0bb803b)
Date: Wed, 27 Jul 2016 20:26:48 -0400	[thread overview]
Message-ID: <8b3126f66186015956e0f8090fb70532@triadic.us> (raw)
In-Reply-To: <20160728003102.GS2356@ZenIV.linux.org.uk>

On 2016-07-27 20:31, Al Viro wrote:
> On Wed, Jul 27, 2016 at 04:45:43PM -0700, David Miller wrote:
> 
>> > I highly expect both my issue and OP's issue to revolve not around
>> > commit e5a4b0bb803b specifically, but around other code that no longer
>> > behaves as expected because of it.
>> 
>> Indeed, and that fault address rounding bug occurs two other times
>> in arch/sparc/lib/user_fixup.c
>> 
>> The mentioned patchwork patch should fix the bug and I'll get that
>> into my sparc tree, merged, and queued up for -stable ASAP.
> 
> Plausible for sparc, but I don't see similar __copy_to_user_inatomic()
> bugs in case of x86_64...

I'm going to go ahead and say this is where my issue and the op's issue 
begin to branch apart from one another. He's seeing this on all incoming 
data, whereas i am only seeing it on ssl data and not on sun4v.

At this point i would say data from my issue is only going to cloud this 
issue as they seem to be two completely different issues revolving 
around the same commit. If i come across any relevant data for x86_64 
ill be sure to post it if this isn't resolved by then, but for now i'm 
going to refrain from submitting anything sparc related.

  reply	other threads:[~2016-07-28  0:37 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-24  3:35 Alan Curry
2016-07-24 17:45 ` Christian Lamparter
2016-07-24 19:02   ` Al Viro
2016-07-26  4:57     ` Alan Curry
2016-07-26 13:59       ` Christian Lamparter
2016-07-26 18:15         ` alexmcwhirter
2016-07-27  6:39           ` Kalle Valo
2016-07-27  1:14         ` Alan Curry
2016-07-27 10:32     ` Alan Curry
2016-07-27 18:04       ` alexmcwhirter
2016-07-27 23:02         ` alexmcwhirter
2016-07-27 23:45           ` David Miller
2016-07-28  0:31             ` Al Viro
2016-07-28  0:26               ` alexmcwhirter [this message]
2016-07-28  1:22                 ` Al Viro
2016-08-03  3:49                   ` Alan Curry
2016-08-03 12:43                     ` Christian Lamparter
2016-08-03 23:25                       ` Alan Curry
2016-07-26  4:32   ` Alan Curry
2016-07-26  4:38   ` alexmcwhirter

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