linux-kernel - Re: unaligned accesses in SLAB etc.

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Message-Id: <20141019.131855.1429160564158795766.davem@davemloft.net>
Date:	Sun, 19 Oct 2014 13:18:55 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	mroos@...ux.ee
Cc:	iamjoonsoo.kim@....com, linux-kernel@...r.kernel.org, cl@...ux.com,
	penberg@...nel.org, rientjes@...gle.com, akpm@...ux-foundation.org,
	linux-mm@...ck.org, sparclinux@...r.kernel.org
Subject: Re: unaligned accesses in SLAB etc.

From: Meelis Roos <mroos@...ux.ee>
Date: Sun, 19 Oct 2014 20:12:43 +0300 (EEST)

>> > > I don't want to define the array size of the fpregs save area
>> > > explicitly and thereby placing an artificial limit there.
>> > 
>> > Nevermind, it seems we have a hard limit of 7 FPU save areas anyways.
>> > 
>> > Meelis, please try this patch:
>> 
>> Works fine with 3.17.0-09670-g0429fbc + fault patch.
>> 
>> Will try current git next to find any new problems :)
> 
> Works on all 3 machines, with latest git (only had to apply the no-ipv6 
> patch on one of them). Thank you for the good work!

Thanks for testing.

Hopefully we can kill the gcc-4.9 bug next, and then see if that
exit_mmap() crash is still happening.
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