castoroides spinlock failure on test_shm_mq

Has anybody noticed the way castoroides is randomly failing?
 SELECT test_shm_mq_pipelined(16384, (select string_agg(chr(32+(random()*95)::int), '') from
generate_series(1,270000)),200, 3);
 
! PANIC:  stuck spinlock (100cb92f4) detected at atomics.c:30
! server closed the connection unexpectedly
!     This probably means the server terminated abnormally
!     before or while processing the request.
! connection to server was lost


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Álvaro Herrera                http://www.2ndQuadrant.com/
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