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Mon, 05 Apr 2021 19:45:42 -0700 (PDT) Received: from localhost ([144.130.156.129]) by smtp.gmail.com with ESMTPSA id q19sm16057055pgv.38.2021.04.05.19.45.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Apr 2021 19:45:42 -0700 (PDT) Date: Tue, 06 Apr 2021 12:45:37 +1000 From: Nicholas Piggin Subject: Re: [PATCH] powerpc/64s: power4 nap fixup in C To: Andreas Schwab References: <20210312012044.3660743-1-npiggin@gmail.com> <87y2e6fu7v.fsf__9754.75274478725$1616992871$gmane$org@mpe.ellerman.id.au> <87v99aj7tr.fsf__47134.2879392736$1617031867$gmane$org@igel.home> <87r1jyj5e1.fsf@igel.home> <1617262357.w4yq2kiecw.astroid@bobo.none> <1617627247.3cjpyzcob4.astroid@bobo.none> <87pmz8d6ro.fsf@igel.home> In-Reply-To: <87pmz8d6ro.fsf@igel.home> MIME-Version: 1.0 Message-Id: <1617677100.it1iqiczd2.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Excerpts from Andreas Schwab's message of April 6, 2021 2:40 am: > On Apr 05 2021, Nicholas Piggin wrote: >=20 >> I worked it out. There was a window where it could take another=20 >> interrupt before the first one adjusts the nip. >> >> I managed to trigger it in qemu and this version fixed it. >=20 > Works for me as well. Aha, thank you for testing it. Finally fixed it. I'll resubmit the patch. Thanks, Nick