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Date: Sat, 28 Aug 2010 01:28:55 +0100 From: Hedi Berriche <hedi@....com> To: "Luck, Tony" <tony.luck@...el.com> Cc: Petr Tesarik <ptesarik@...e.cz>, "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: Serious problem with ticket spinlocks on ia64 On Sat, Aug 28, 2010 at 00:55 Tony Luck wrote: | > this fails so catastrophically | | Interesting ... getting rid of some of the fancy asm bits | (replacing both the ld4.c.nc and the ld2.bias with simple | "serve = *p" and "tmp = *p") makes this run a lot better. *Hasty* look seems to suggest that keeping the fancy asm bits but compiling with -O2 -frename-registers makes it work equally well. Don't take my word for it though, double check it, it's been a long week and brain is anything but alert at this time of the night. Cheers, Hedi. -- Hedi Berriche Global Product Support http://www.sgi.com/support -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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