Re: Linux 5.8-rc1 BUG unable to handle page fault (snd_pcm)

From: Shuah Khan
Date: Mon Jun 15 2020 - 17:04:14 EST


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@xxxxxxxxxxxxxxxxxxxxxxxxx
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