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(parent: c5e5d44) | patch
Replace ia64 S_UNLOCK compiler barrier with a full memory barrier.
authorAndres Freund <andres@anarazel.de>
Mon, 29 Jun 2015 12:53:32 +0000 (14:53 +0200)
committerAndres Freund <andres@anarazel.de>
Mon, 29 Jun 2015 12:53:32 +0000 (14:53 +0200)
commit07cb8b02ab4c8b65bb2e3b87ad2402fdc6cce978
treece19e0ccdde4f7065524a15dfc3e7236f53e1e9ftree | snapshot
parentc5e5d444de85a7caff462443c5915544d4406a62commit | diff
Replace ia64 S_UNLOCK compiler barrier with a full memory barrier.

_Asm_sched_fence() is just a compiler barrier, not a memory barrier. But
spinlock release on IA64 needs, at the very least, release
semantics. Use a full barrier instead.

This might be the cause for the occasional failures on buildfarm member
anole.

Discussion: 20150629101108.GB17640@alap3.anarazel.de
src/include/storage/s_lock.h diff | blob | history
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