> I have a locally registered gen_server [1], which traping exits and
> monitoring list of processes (which saved in ETS table in it's state).
> The priority of this gen_server set to high.
> We also use fullsweep_after = 0.
> The only job of this gen_server is to spawn gen_servers of other type
> and update ETS table with their pids.
> The priority of a spawned gen_server process is normal.

> For some reason the message queue length of this gen_server start
> increasing, whith messages which supposedly should processed by
> gen_server:handle_info/2 [2].
> Any ideas?

> [2]

> (mynode@myhost)9>  whereis(myserver).
> <0.194.0>
> (mynode@myhost)10>  i(0,194,0).
> [{registered_name,myserver},
>   {current_function,{proc_lib,sync_wait,2}},
>   {initial_call,{proc_lib,init_p,5}},
>   {status,waiting},
>   {message_queue_len,43388},
>   {messages,[{'EXIT',<0.17263.1>,normal},
>              {'DOWN',#Ref<0.0.220.23782>,process,<0.17263.1>,normal},
>              {'EXIT',<0.19870.0>,normal},
>              {'DOWN',#Ref<0.0.7.128134>,process,<0.19870.0>,normal},
>              {'EXIT',<0.19945.0>,normal},
>              {'DOWN',#Ref<0.0.7.183474>,process,<0.19945.0>,normal},
>              {'EXIT',<0.19927.0>,normal},
>              {'DOWN',#Ref<0.0.7.166242>,process,<0.19927.0>,normal},
>              {'EXIT',<0.19847.0>,normal},
>              {'DOWN',#Ref<0.0.7.119123>,process,<0.19847.0>,normal},
>              {'EXIT',<0.19935.0>,normal},
>              {'DOWN',#Ref<0.0.7.174779>,process,<0.19935.0>,normal},
>              {'EXIT',<0.17267.1>,normal},
>              {'DOWN',#Ref<0.0.220.24915>,process,<0.17267.1>,normal},
>              {'EXIT',<0.19833.0>,normal},
>              {'DOWN',#Ref<0.0.7.109092>,process,<0.19833.0>,normal},
>              {'EXIT',<0.19895.0>,normal},
>              {'DOWN',#Ref<0.0.7.135024>,process,...},
>              {'EXIT',<0.19906.0>,...},
>              {'DOWN',...},
>              {...}|...]},
>   {links,[<0.14463.0>,<0.1452.1>,<0.28537.1>,<0.6041.2>,
>           <0.11523.2>,<0.13320.2>,<0.13691.2>,<0.14031.2>,<0.14312.2>,
>           <0.14363.2>,<0.14502.2>,<0.14514.2>,<0.14518.2>,<0.14523.2>,
>           <0.14516.2>,<0.14509.2>,<0.14512.2>,<0.14506.2>,<0.14471.2>,
>           <0.14490.2>|...]},
>   {dictionary,[{'$ancestors',[router_core_sup,router_sup,
>                               <0.189.0>]},
>                {'$initial_call',{myserver,init,1}}]},
>   {trap_exit,true},
>   {error_handler,error_handler},
>   {priority,high},
>   {group_leader,<0.188.0>},
>   {total_heap_size,1346269},
>   {heap_size,1346269},
>   {stack_size,26},
>   {reductions,3818768},
>   {garbage_collection,[{min_bin_vheap_size,46368},
>                        {min_heap_size,233},
>                        {fullsweep_after,0},
>                        {minor_gcs,0}]},
>   {suspending,[]}]

> --------------------------------------

> [1]

> -module(myserver).
> -behaviour(gen_server).

> ..

> handle_info({'EXIT', Pid, _}, State) ->
>    delete_by_pid(Pid, State),
>      {noreply, State};

> handle_info({'DOWN', _, process, Pid, _}, State) ->
>    delete_by_pid(Pid, State),
>      {noreply, State};

> handle_info(Info, State) ->
>      {stop, {unknown_info, Info}, State}.
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