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OpenVoiceOS
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buildroot-external
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board
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ovos
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raspberrypi
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kernel.config
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Switch to a voluntary kernel preemption. The respeaker mic hats and possibly (many) others are using the x-powers ac108 adc chip however the driver of this chip is not compatible with 64bit PREEMPT kernels crashing the drivers with "BUG: scheduling while atomic" spinlock issues. PREEMPT is used for low latency desktops PREEMPT_NONE is used for servers As we are not a (low-latency needed) desktop however not a server as well, the middle ground actually works perfectly fine with the benefit of having a more stable respeaker driver. This accounts for ALL different respeaker HATs except the 2-mic as that one is based on the WM8960 chip which is actually already supported mainline if you want anyway.
2022-02-09 14:15:41 +01:00
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
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