[erlang-questions] beam crasher: ets + write_concurrency

Sverker Eriksson <>
Fri Oct 9 10:34:46 CEST 2009

Dave Smith wrote:
> I believe that I have identified a VM crasher when using ETS with
> write concurrency enabled. Sample code is as follows:
> T = ets:new(?MODULE, [{write_concurrency, true}]),
> ets:insert_new(T, {foo, 1}),
> ets:match(T, {nosuchvalue, '$1'})

Yes, it's repeatable on my machine as well (Linux x86_64, 64-bit VM).
I will have a look at it right now.

Thanks for reporting.
/Sverker, Erlang/OTP

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