Tatsuo Ishii <t-ishii@sra.co.jp> writes:
>>> How can I check it?
>>
>> The 'stuck' message should at least give you a code location...
> FATAL: s_lock(0x2ac2d016) at spin.c:158, stuck spinlock. Aborting.
Hmm, that's SpinAcquire, so it's one of the predefined spinlocks
(and not, say, a buffer spinlock). You could try adding some
debug logging here, although the output would be voluminous.
But what would really be useful is a stack trace for the stuck
process. Consider changing the s_lock code to abort() when it
gets a stuck spinlock --- then you could gdb the coredump.
regards, tom lane