[erlang-questions] erts design information/experts around?
Raimo Niskanen
raimo+erlang-questions@REDACTED
Thu Jul 3 17:53:03 CEST 2008
On Thu, Jul 03, 2008 at 10:12:27AM -0500, Paul Fisher wrote:
> I sent the following note to erlang-bugs two days ago and have not seen
> anyone comment.
>
> > We have a system where we run lots of linked-in driver ports that get
> > created/used/closed frequently and sometimes very quickly. Today when
> > several open_port/2, port_command/2 and port_close/1 cycles happened
> > rapid succession, a SIGSEGV occurrect in erl_bif_ddl.c:
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 1125235040 (LWP 12087)]
> > 0x0000000000449712 in erl_ddll_try_unload_2 (p=0x2aaaab11fc90,
> > name_term=659339, options=46912503328425) at beam/erl_bif_ddll.c:592
> >
>
> ???This is not the first email about runtime internals that I have sent
> which has gone without comment, and so I am wondering if the people with
> detailed knowledge of the runtime do not follow these lists.
>
They are on vacation. We would need both the experts on
SMP and the experts on Windows debugging.
Were it on Unix we would have requested a core dump,
but on Windows I do not know if there is such a thing,
or if there has to be a VisualStudio 8 installation
plus source code on the failing machine. The experts
on Windows debugging would know.
> Is there a better place/way to get in contact? (What I am really
> looking for is a discussion of the overall internals design of the smp
> runtime structures, so that I can get a jump start on fixing these types
> of thing myself.)
Erlang-questions is a good place. Here there are lots of
smart guys that not all read erlang-bugs and may
have a clue.
>
> thanks in advance,
>
>
> --
> paul
>
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--
/ Raimo Niskanen, Erlang/OTP, Ericsson AB
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