linux-kernel - Re: Breaking userspace? Re: 3.0.24 broke aufofs on mixed 32/64bit environment

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Message-ID: <4F96D1F6.80701@msgid.tls.msk.ru>
Date:	Tue, 24 Apr 2012 20:16:54 +0400
From:	Michael Tokarev <mjt@....msk.ru>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Ian Kent <raven@...maw.net>,
	"stable@...nel.org" <stable@...nel.org>, autofs@...r.kernel.org,
	Linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Breaking userspace? Re: 3.0.24 broke aufofs on mixed 32/64bit
 environment

On 24.04.2012 20:12, Michael Tokarev wrote:
> On 24.04.2012 19:08, Linus Torvalds wrote:

>>> Kernel has been shipping with this brokeness for quite
>>> some time, namely, since introduction of autofs4, dated
>>> Mon Mar 27 01:14:55 2006 -0800 (commit 5c0a32fc2cd0).
>>

>> Actually, that's just not true. The *main* users of the interface seem
>> to have never fixed anything. As far as I know, neither the upstream
>> autofs tools nor several of the big distributions ever had patches to
>> make 32-bit autofs work with the old broken 64-bit compat layer.
[]
> I don't know how old this code is, but it definitely is in the
> 5.0.1 upstream tarball, and the file there is dated
> Feb-20, 2007 - at least 3 years after the initial bug in kernel.

I meant to say "about a year after the initial bug in kernel".

And I think it was me who found the original issue, -- i mean,
discovered that it does not work, not found the real bug - but
I don't remember anymore.  This stuff looks very familiar for
some reason however... ;)

Thanks,

/mjt
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