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Message-ID: <ef100771-ae52-dd35-2d6b-762e5dda6e81@linuxfoundation.org>
Date:   Mon, 15 Jun 2020 14:53:59 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Takashi Iwai <tiwai@...e.de>, David Rientjes <rientjes@...gle.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@....de>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

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.

thanks,
-- Shuah

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