Date: Sat, 6 Aug 2011 15:02:10 -0400 From: Super Bisquit <superbisquit@gmail.com> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: freebsd-ppc@freebsd.org Subject: Re: Lags and setjmp Message-ID: <CA%2BWntOvwEP4E88RqruvVzUtNxMkmWZ8H0n=MpFqDZ6ySqPSBUA@mail.gmail.com> In-Reply-To: <4E3D5FA6.80207@freebsd.org> References: <CA%2BWntOvpqj0FSE%2BcYA2UqsefvhaxPhaaKdaz3DC%2BPyFe01iRDA@mail.gmail.com> <4E3D5FA6.80207@freebsd.org>
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On Sat, Aug 6, 2011 at 11:37 AM, Nathan Whitehorn <nwhitehorn@freebsd.org>wrote: > On 08/05/11 10:47, Super Bisquit wrote: > >> The file /usr/src/sys/powerpc/powerpc/**setjmp.S has >> >> #ifdef __powerpc64__ >> >> at line nine. Maybe this is affecting the system because: >> the lag seems to occur on Xorg/Xserver with the cursor having to be moved >> before there is a response. >> I'm wondering if setting the vale to powerpc instead of powerpc64 would >> stop >> this action. >> >> > It wouldn't for the reason Justin said, and this file only applies to the > kernel besides. I've also never experienced this bug you're referring to. Is > X using longjmp/setjmp() internally? One thing we do not do is save/restore > FP registers for long jumps. It's not required by the spec, but Linux does > do it. > -Nathan > > ______________________________**_________________ > freebsd-ppc@freebsd.org mailing list > http://lists.freebsd.org/**mailman/listinfo/freebsd-ppc<http://lists.freebsd.org/mailman/listinfo/freebsd-ppc>; > To unsubscribe, send any mail to "freebsd-ppc-unsubscribe@**freebsd.org<freebsd-ppc-unsubscribe@freebsd.org> > " > How's it going? Anyway, I'm not sure. I'll restart X with a more verbose output and will attach the file next reply. I'm curious, what machines are you using for the 9.0 PowerPC ?
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