Eric, you might learn something if you have the Console app running while one of these crashes happens. On recent versions of macOS, most syslog-type messages are lost unless the Console is running. But its output is *extremely* verbose, so you'd have to search to an enormous haystack to find any possible needles. Since the most informative messages are likely to come from a kernel extension, you could winnow down the output by filtering on "kernel". You'd still have a ton of messages to wade through, though.
Bug 1576767 Comment 92 Edit History
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Eric, you might learn something if you have the Console app running while one of these crashes happens. On recent versions of macOS, most syslog-type messages are lost unless the Console is running. But its output is *extremely* verbose, so you'd have to search through an enormous haystack to find any possible needles. Since the most informative messages are likely to come from a kernel extension, you could winnow down the output by filtering on "kernel". You'd still have a ton of messages to wade through, though.