[erlang-questions] Any tcp related changes in R15B* that might cause this?

Anders Nygren <>
Thu Dec 6 21:02:20 CET 2012


No, its the other way around, that code compiled with a newer version
is not sure to work on an older system.

/Anders

On Thu, Dec 6, 2012 at 1:48 PM, Wes James <> wrote:
> I thought code compiled, say for R14 would work on all R14 releases, but if
> you want to run on R15, you would need to recompile on R15 for it to work
> properly.
>
> wes
>
>
>
> On Thu, Dec 6, 2012 at 12:38 PM, Anthony Molinaro
> <> wrote:
>>
>> Hi,
>>
>>   I've been testing out R15B02 on one of our production machines
>> (CentOS 5, erlang compiled from source), and comparing it to the
>> same system running on R14B04.  The code is the same (it was all
>> compiled with R14B04, and deployed on both systems).
>>
>> On the R15B02 I see this error crop up every so often
>>
>> 2012-12-01 00:01:33 =CRASH REPORT====
>>   crasher:
>>     initial call: mochiweb_acceptor:init/3
>>     pid: <0.2942.3599>
>>     registered_name: []
>>     exception error:
>> {{badmatch,{error,einval}},[{mochiweb_http,new_request,3,[]},{mochiweb_http,handle_invalid_request,3,[]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,227}]}]}
>>     ancestors: [webmachine_mochiweb,web_serve_sup,<0.619.0>]
>>     messages: [{tcp_closed,#Port<0.222190389>}]
>>     links: [<0.873.0>]
>>     dictionary: []
>>     trap_exit: false
>>     status: running
>>     heap_size: 987
>>     stack_size: 24
>>     reductions: 541
>>   neighbours:
>>
>> It doesn't happen extremely often (once or twice a minute), but its enough
>> to make me wary of an upgrade.
>>
>> I looked through all the readme's for R15B, R15B01 and R15B02 but didn't
>> find anything which looked like it could be a cause.
>>
>> Anyone have any ideas?
>>
>> Thanks,
>>
>> -Anthony
>>
>> --
>> ------------------------------------------------------------------------
>> Anthony Molinaro                           <>
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