On Sat, 2008-11-08 at 17:55 -0500, Dylan Taft wrote: > Hi all, > > I posted a bug a while ago > https://bugs.freedesktop.org/show_bug.cgi?id=18402 > I'm using anholt's for review kernel, on a p5q-EM board with 3 gigs of > ram and a dual core CPU, with dual screens. > > In i830_accel, when I830Sync is called, an IRQ is emitted and then > immediately waited on. > In static int i915_wait_irq(struct drm_device * dev, int irq_nr) in > DRM, with debugging on, it can show the IRQ NR it's waiting on. If I > modprobe drm with debug, I get those debugging messages, > > But if I do this, I'm unable to reproduce this error!?! If I hold > down J in mplayer, freetype renders text, and sometimes its drawn to > the screen incorrectly, totally solid black, or corrupted...and X can > lock. If I have debug on, it's always rendered correctly, and I'm > unable to get X to lock. > > It's like IRQs are being missed?
My experience thus far indicates that the interrupt rate is the trigger. Try running running glxgears with vblank_mode=0 and see if irq's vaporize within a couple of minutes. Which chip are you seeing this on specifically? robert. . > Does anyone have any idea what could be going on here? > Thanks! > Dylan > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > -- > _______________________________________________ > Dri-devel mailing list > Dri-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dri-devel
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