On 5/23/19 3:24 AM, Yang, Libin wrote:
Hi Takashi,
-----Original Message-----
From: Takashi Iwai [mailto:tiwai@xxxxxxx]
Sent: Thursday, May 23, 2019 4:16 PM
To: Yang, Libin <libin.yang@xxxxxxxxx>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>; alsa-
devel@xxxxxxxxxxxxxxxx; broonie@xxxxxxxxxx
Subject: Re: [PATCH v2 12/12] ASoC: SOF: Intel: hda-codec:
fix memory allocation
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.
No, I haven't. I'm not sure which options I can use for this case. Could you
please give me some suggestions?
BTW: I have enabled DEBUG_DEVRES. Are there any other options I can try?
There are already a set of kconfig fragments for debug, see
https://github.com/thesofproject/kconfig and select memory-debug-defconfig.
I guess I will need to require this test in the SOF CI, I really don't
get how this issue was not seen earlier. Gah.
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