Date: Sun, 7 Aug 2011 19:24:57 -0400 From: Super Bisquit <superbisquit@gmail.com> To: freebsd-x11@freebsd.org Subject: Fwd: Lags and setjmp Message-ID: <CA%2BWntOuLFwGVjokc4FCGFaFqp0Pca_Z9jin%2BFOk8ygGz7HHyYw@mail.gmail.com> In-Reply-To: <CA%2BWntOtGqN4GP-rii61EkNwU9eep%2BjV%2BRQJiycwyyQgi_SjCSw@mail.gmail.com> References: <CA%2BWntOvpqj0FSE%2BcYA2UqsefvhaxPhaaKdaz3DC%2BPyFe01iRDA@mail.gmail.com> <4E3D5FA6.80207@freebsd.org> <CA%2BWntOvwEP4E88RqruvVzUtNxMkmWZ8H0n=MpFqDZ6ySqPSBUA@mail.gmail.com> <CA%2BWntOvM7CT_HLG0VzujPAfkLsRJzKT6axXG2PmDpAbqSqTAEw@mail.gmail.com> <CA%2BWntOtGqN4GP-rii61EkNwU9eep%2BjV%2BRQJiycwyyQgi_SjCSw@mail.gmail.com>
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--001636e1fc5f7f987804a9f2a3fa Content-Type: text/plain; charset=ISO-8859-1 Anyone on the X11 list with similar equipment? ---------- Forwarded message ---------- From: Super Bisquit <superbisquit@gmail.com> Date: Sun, 7 Aug 2011 15:19:39 -0400 Subject: Re: Lags and setjmp To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: freebsd-ppc@freebsd.org On Sun, Aug 7, 2011 at 11:19 AM, Super Bisquit <superbisquit@gmail.com>wrote: > On 8/6/11, Super Bisquit <superbisquit@gmail.com> wrote: > > 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 ? > > > > > I did not find anything. This problem only occurs with the G4 systems. > Unless someone else has the same equipment, it's just an "annoyance" > bug for me. > Anyone with the following systems: iMac G4 800MHz nVidia NV11 /GeForce MX/MX 400, Quicksilver G4 2002 933MHz with Radeon 7500/RV200 QW, or a B&W G3 400MHz with ATI Rage 128? The files included show a lag/hang when the pointer is moved during a glxgears session. I've ran glxgears on FreeBSD/i386 using an IGP and did not have the problem. Nathan Whitehorn mentioned that the problem may- forgive my paraphrasing- be at stjmp and longjmp. Okay, then why does this problem not occur with Debian or OpenBSD? Just curious if it is the driver and FreeBSD or possible what Matthieu Herb stated. Has pixmap caused problems before? 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