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To: Anton Blanchard <anton@samba.org>, benh@kernel.crashing.org,
 paulus@samba.org, cyrilbur@gmail.com, scottwood@freescale.com,
 mikey@neuling.org, khandual@linux.vnet.ibm.com
From: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: powerpc: Fix DSCR inheritance over fork()
Message-Id: <20151214094750.F0DA4140556@ozlabs.org>
Date: Mon, 14 Dec 2015 20:47:50 +1100 (AEDT)
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On Wed, 2015-09-12 at 09:11:47 UTC, Anton Blanchard wrote:
> Two DSCR tests have a hack in them:
> 
> 	/*
> 	 * XXX: Force a context switch out so that DSCR
> 	 * current value is copied into the thread struct
> 	 * which is required for the child to inherit the
> 	 * changed value.
> 	 */
> 	sleep(1);
> 
> We should not be working around this in the testcase, it is a kernel bug.
> Fix it by copying the current DSCR to the child, instead of what we
> had in the thread struct at last context switch.
> 
> Signed-off-by: Anton Blanchard <anton@samba.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/db1231dcdb4dc6cdcbdef0ba

cheers