linux-kernel - Re: [patch 071/149] ARM: 6166/1: Proper prefetch abort handling on pre-ARMv6

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100701222541.GB10481@shutemov.name>
Date:	Fri, 2 Jul 2010 01:25:41 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Greg KH <gregkh@...e.de>
Cc:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Anfei Zhou <anfei.zhou@...il.com>,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: Re: [patch 071/149] ARM: 6166/1: Proper prefetch abort handling on
 pre-ARMv6

On Thu, Jul 01, 2010 at 03:17:28PM -0700, Greg KH wrote:
> On Fri, Jul 02, 2010 at 01:14:20AM +0300, Kirill A. Shutemov wrote:
> > On Thu, Jul 01, 2010 at 10:31:37AM -0700, Greg KH wrote:
> > > 2.6.32-stable review patch.  If anyone has any objections, please let us know.
> > > 
> > > ------------------
> > > 
> > > From: Anfei <anfei.zhou@...il.com>
> > > 
> > > commit 5e27fb78df95e027723af2c90ecc9b4527ae59e9 upstream.
> > > 
> > > Instruction faults on pre-ARMv6 CPUs are interpreted as
> > > a 'translation fault', but do_translation_fault doesn't
> > > handle well if user mode trying to run instruction above
> > > TASK_SIZE, and result in the infinite retry of that
> > > instruction.
> >  
> > Actually, this patch helps also on ARMv6+. Probably, better to correct
> > commit message for stable.
> 
> We (well, I) like to keep the commit log identical to what is upstream
> just to make things easier all around.  Otherwise people start asking
> for spelling fixes, clarifications, and all sorts of other stuff (like
> this.)

Ok, fair enough.

I asked for it because I was confused by this commit message while
investigate (the same) problem on ARMv7 CPU.

-- 
 Kirill A. Shutemov
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/