From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (bilbo.ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zh7cf0P09zF12y for ; Wed, 14 Feb 2018 16:43:46 +1100 (AEDT) In-Reply-To: <20180201050944.30332-1-aik@ozlabs.ru> To: Alexey Kardashevskiy , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Cc: Alexey Kardashevskiy Subject: Re: [kernel, v2] powerpc/mm: Flush radix process translations when setting MMU type Message-Id: <3zh7cd6WzLz9t3C@ozlabs.org> Date: Wed, 14 Feb 2018 16:43:45 +1100 (AEDT) List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2018-02-01 at 05:09:44 UTC, Alexey Kardashevskiy wrote: > Radix guests do normally invalidate process-scoped translations when > a new pid is allocated but migrated guests do not invalidate these so > migrated guests crash sometime, especially easy to reproduce with > migration happening within first 10 seconds after the guest boot start on > the same machine. > > This adds the "Invalidate process-scoped translations" flush to fix > radix guests migration. > > Signed-off-by: Alexey Kardashevskiy > Tested-by: Laurent Vivier > Tested-by: Daniel Henrique Barboza Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/62e984ddfd6b056d399e24113f5e6a cheers