From mboxrd@z Thu Jan  1 00:00:00 1970
From: Takashi Iwai <tiwai@suse.de>
Subject: Re: [PATCH v2 12/12] ASoC: SOF: Intel: hda-codec: fix
	memory allocation
Date: Thu, 23 May 2019 10:15:54 +0200
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To: "Yang, Libin" <libin.yang@intel.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>, "broonie@kernel.org" <broonie@kernel.org>, Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
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On Thu, 23 May 2019 10:03:03 +0200,
Yang, Libin wrote:
> 
> Please let me describe the issue here. 
> 
> The test case is:
> 1) Unload module with script "sudo ./sof_remove.sh" , 
> 2) reload module with script "sudo ./sof_insert.sh"
> 
> After several rounds of removing and inserting kernel modules,
> system will complain like below:
> "BUG: unable to handle kernel paging request at 000000292a282031"

Did you try some kernel debug options?  It might show what went wrong.


Takashi