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[24.9.64.241]) by smtp.gmail.com with ESMTPSA id n82sm8506653iod.23.2020.06.15.14.04.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Jun 2020 14:04:08 -0700 (PDT) Subject: Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm) To: Takashi Iwai , David Rientjes Cc: Linus Torvalds , Linux Kernel Mailing List , Christoph Hellwig , Shuah Khan References: <446c7a14-db97-6389-a03c-9ffccd251529@linuxfoundation.org> From: Shuah Khan Message-ID: Date: Mon, 15 Jun 2020 15:04:07 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/15/20 2:53 PM, Shuah Khan wrote: > On 6/15/20 1:57 PM, Takashi Iwai wrote: >> On Mon, 15 Jun 2020 20:48:11 +0200, >> Shuah Khan wrote: >>> >>> I am seeing the following problem on my system. I haven't started debug >>> yet. Is this a known issue? >> >> Yes, the recent fix by David should paper over it: >> >> http://lore.kernel.org/r/alpine.DEB.2.22.394.2006110025250.13899@chino.kir.corp.google.com >> >> IIRC, Christoph already merged it in his tree. >> >> I also made another fix series in the sound driver side (found in >> topic/dma-fix2 branch in my sound.git tree). >> But I guess I'll queue it for 5.9 after more testing. >> >> > > David and Takashi, > > I applied the patch David pointed me to. > > http://git.infradead.org/users/hch/dma-mapping.git/commitdiff/dbed452a078d56bc7f1abecc3edd6a75e8e4484e > > > I have CONFIG_AMD_MEM_ENCRYPT enabled. Building now. Will keep > you updated. > This patch took care of the problem. thanks, -- Shuah