Hi Krzysztof,
Cc: Charles
On 2/5/19 22:16, Krzysztof Kozlowski wrote:
Bisect pointed to commit: commit 078a85f2806f0ffd11289009462a6a390f9adb5c Author: Charles Keepax ckeepax@opensource.cirrus.com Date: Thu Jan 31 13:30:18 2019 +0000 ASoC: dapm: Only power up active channels from a DAI
as a bad commit for NULL pointer on my Odroid XU3 and Odroid U3 board when doing "aplay /usr/share/sounds/alsa/Front_Right.wav".
- Arch ARM Linux
- exynos_defconfig
- Odroid U3, XU3, Exynos SoC, ARMv7
Last address is in calltrace: c079552c dapm_update_dai_unlocked sound/soc/soc-dapm.c:2586
Thanks for bisecting this, I ran into same issue last night and I'm starting to debug this now. I have added some debug prints and it looks like it oopses on NULL playback_widget of the dummy DAI.
[ 30.701182] hdmi-audio-codec hdmi-audio-codec.0.auto: Update DAI routes for i2s-hifi playback [ 30.709630] dapm_update_dai_unlocked:2586 w=8bd27d28 [ 30.714403] dapm_update_dai_unlocked:2594 w=8bd27d28 [ 30.724688] max98090 5-0010: Update DAI routes for HiFi playback [ 30.730163] dapm_update_dai_unlocked:2586 w=3fc942af [ 30.735154] dapm_update_dai_unlocked:2594 w=3fc942af [ 30.745051] snd-soc-dummy snd-soc-dummy: Update DAI routes for snd-soc-dummy-dai playback [ 30.753128] dapm_update_dai_unlocked:2586 w= (null) [ 30.758114] Unable to handle kernel NULL pointer dereference at virtual address 0000007c