Crash when recording clock_gettime

Benjamin King benjaminking at
Mon Aug 28 18:49:42 UTC 2017

Hi Rob,

>> > My libc is custom built with frame pointers but without further modifications.
>> Can you try it with system libc?
>I'll try that a bit later.
I could reproduce the identical issue on my laptop. This has Ubuntu 16.04
with a stock libc6 (libc6_2.23-0ubuntu9_amd64.deb) and a stock gcc 5.4.0

That machine also has a different CPU and a newer kernel than my machine at

I'll see if I can figure out where that address is coming from which crashes
the process.


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