On Mon, Apr 25, 2016 at 11:52:04AM -0700, Andres Freund wrote:
> On 2016-04-23 21:54:07 -0400, Noah Misch wrote:
> > The bug is that the pg_atomic_compare_exchange_*() specifications
> > grant "full barrier semantics", but generic-xlc.h provided only the
> > semantics of an acquire barrier.
>
> I
On 2016-04-23 21:54:07 -0400, Noah Misch wrote:
> I missed a second synchronization bug in generic-xlc.h, but the pgbench test
> suite caught it promptly after commit 008608b.
Nice catch.
> The bug is that the pg_atomic_compare_exchange_*() specifications
> grant "full barrier semantics", but ge
On Mon, Feb 15, 2016 at 02:02:41PM -0500, Tom Lane wrote:
> Noah Misch writes:
> > That commit (0d32d2e) permitted things to compile and usually pass tests,
> > but
> > I missed the synchronization bug. Since 2015-10-01, the buildfarm has seen
> > sixteen duplicate-catalog-OID failures.
>
> I'd
On 5 July 2015 at 06:54, Andres Freund wrote:
> I wrote this entirely blindly, as evidenced here by the changes you
> needed. At the time somebody had promised to soon put up an aix animal,
> but that apparently didn't work out.
>
Similarly, I asked IBM for XL/C for a POWER7 Linux VM to improve
Noah Misch writes:
> That commit (0d32d2e) permitted things to compile and usually pass tests, but
> I missed the synchronization bug. Since 2015-10-01, the buildfarm has seen
> sixteen duplicate-catalog-OID failures.
I'd been wondering about those ...
> These suggested OidGenLock wasn't doing
On Mon, Feb 15, 2016 at 06:33:42PM +0100, Andres Freund wrote:
> On 2016-02-15 12:11:29 -0500, Noah Misch wrote:
> > These suggested OidGenLock wasn't doing its job. I've seen similar symptoms
> > around WALInsertLocks with "IBM XL C/C++ for Linux, V13.1.2 (5725-C73,
> > 5765-J08)" for ppc64le. T
On 2016-02-15 12:11:29 -0500, Noah Misch wrote:
> These suggested OidGenLock wasn't doing its job. I've seen similar symptoms
> around WALInsertLocks with "IBM XL C/C++ for Linux, V13.1.2 (5725-C73,
> 5765-J08)" for ppc64le. The problem is generic-xlc.h
> pg_atomic_compare_exchange_u32_impl() iss
On Sat, Jul 04, 2015 at 08:07:49PM -0400, Noah Misch wrote:
> On Sun, Jul 05, 2015 at 12:54:43AM +0200, Andres Freund wrote:
> > On 2015-07-04 18:40:41 -0400, Noah Misch wrote:
> > > (1) "IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)". Getting it
> > > working
> > > required the attached patch
On Sun, Jul 05, 2015 at 12:54:43AM +0200, Andres Freund wrote:
> On 2015-07-04 18:40:41 -0400, Noah Misch wrote:
> > (1) "IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)". Getting it working
> > required the attached patch.
> Will you apply? Having the ability to test change seems to put you in
On 2015-07-04 18:40:41 -0400, Noah Misch wrote:
> (1) "IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)". Getting it working
> required the attached patch. None of my xlc configurations have an
> header, and a web search turned up no evidence of one in connection with xlc
> platforms. Did you l
On Wed, Jun 25, 2014 at 07:14:34PM +0200, Andres Freund wrote:
> * gcc, msvc work. acc, xlc, sunpro have blindly written support which
> should be relatively easy to fix up.
I tried this on three xlc configurations.
(1) "IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)". Getting it working
req
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