On 05/24/2015 08:07 PM, Andres Freund wrote:
On 2015-05-24 19:44:37 -0400, Andrew Dunstan wrote:
Buildfarm members casteroides and protosciurus have been having some
problems that seem puzzling. These animals both run on the same machine, but
with different compilers.
casteroides runs with the Sun Studio 12 compiler, and has twice in the last
3 days demonstrated this error:
[5561ce0c.51b7:25] LOG: starting background worker process "test_shm_mq"
[5561ce1e.5287:9] PANIC: stuck spinlock (100cb77f4) detected at
atomics.c:30
[5561ce1e.5287:10] STATEMENT: SELECT test_shm_mq_pipelined(16384, (select
string_agg(chr(32+(random()*95)::int), '') from generate_series(1,270000)),
200, 3);
[5561ce0c.51b7:26] LOG: server process (PID 21127) was terminated by
signal 6
[5561ce0c.51b7:27] DETAIL: Failed process was running: SELECT
test_shm_mq_pipelined(16384, (select string_agg(chr(32+(random()*95)::int), '')
from generate_series(1,270000)), 200, 3);
[5561ce0c.51b7:28] LOG: terminating any other active server processes
It's not constant - between the two failures was a success.
That's indeed rather odd. For one the relevant code does nothing but
lock/unlock a spinlock. For another, there's been no recent change to
this and casteroides has been running happily for a long time.
Yes, but it wasn't running these tests until a few days ago when its
buildfarm software was upgraded.
cheers
andrew
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