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by colonelpanic
Wed Apr 25, 2018 12:10 pm
Forum: Troubleshooting
Topic: High CPU usage when booting from USB
Replies: 35
Views: 6146

Re: High CPU usage when booting from USB

The issue is resolved when I boot from the SD card instead. The filesystem on the USB is unchanged, but simply booting from SD instead of USB solves the problem. Something about booting from USB is triggering a lot of interrupt requests.
by colonelpanic
Tue Apr 24, 2018 9:42 pm
Forum: Troubleshooting
Topic: High CPU usage when booting from USB
Replies: 35
Views: 6146

High CPU usage when booting from USB

Ever since I set my pi up to boot from a USB flash drive, the system has been pegging the cpu at right around 0.25 24/7. To troubleshoot I performed: echo workqueue:workqueue_queue_work > /sys/kernel/debug/tracing/set_event cat /sys/kernel/debug/tracing/trace_pipe > out.txt and see a stream of entr...

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