I think what's going on is the bug has already hit, which turns off the
tracing. We need to turn it back on. Before executing the steps I
mentioned, please do the following:

$ sudo sh -c "echo 1 > /sys/kernel/debug/tracing/tracing_enabled"
$ sudo sh -c "echo 1 > /sys/kernel/debug/tracing/tracing_on"

Then continue with the steps outlined in the wiki page.

Thanks

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BUG: scheduling while atomic: swapper/0/0x10010000
https://bugs.launchpad.net/bugs/555261
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