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Date: Thu, 24 Jan 2013 17:57:06 +0200
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Subject: CPU soft lockup in usb-audio
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I've spent months hunting for this random crash bug until today when I 
finally found a way to reliably reproduce it (run a software that I 
develop under valgrind). Log received over netconsole:

http://pastie.org/5848168

Is this a known issue or do you need more information to debug it?