[erlang-questions] Erlang 20 Access Violation crash on Windows

Agustin Cautin <>
Thu Aug 17 08:41:14 CEST 2017


Hello,

We are having crashes in our production systems every 4-6 hours, we don't
have much information regarding the crash as the vm just suddenly stops due
to access violation the only information we have is from the system event
log:

Faulting application name: erl.exe, version: 0.0.0.0, time stamp: 0x59497e1a
Faulting module name: beam.smp.dll, version: 0.0.0.0, time stamp: 0x59497e05
Exception code: 0xc0000005
Fault offset: 0x0000000000137528
Faulting process id: 0x1720
Faulting application start time: 0x01d311b3967b4ead
Faulting application path: d:\K2Informatics\sbsgui\erts-9.0\bin\erl.exe
Faulting module path: d:\K2Informatics\sbsgui\erts-9.0\bin\beam.smp.dll
Report Id: 069f7e2b-7db4-11e7-acb4-3cd92bfb3e2e


This is happening in a cluster of 6 machines but only under load, so far we
haven't been able to reproduce the crash on systems outside the production
environment, any help in how to get to the root cause or which tools can we
use to debug it will be greatly appreciated.

Regards.
Agustin.
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