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Open Source and information security mailing list archives
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Date: Wed, 12 Jan 2011 15:06:40 -0800 From: Jesse Barnes <jbarnes@...tuousgeek.org> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Dave Airlie <airlied@...ux.ie>, Chris Wilson <chris@...is-wilson.co.uk>, linux-kernel@...r.kernel.org, DRI mailing list <dri-devel@...ts.freedesktop.org> Subject: Re: [git pull] drm intel only fixes On Wed, 12 Jan 2011 14:31:33 -0800 Linus Torvalds <torvalds@...ux-foundation.org> wrote: > On Wed, Jan 12, 2011 at 2:22 PM, Jesse Barnes <jbarnes@...tuousgeek.org> wrote: > > > > Ah, ok. So it could be our internal FDI link is underrunning; it goes > > between the CPU and PCH and carries display bits. > > I'm not sure it's an underrun or anything like that: the corruption is > long-term in the non-video case. So I take back the "looks like memory > bandwidth problems", because it really looks more like a corrupted > blit operation there. Ah ok if it's long running then yeah it's more likely to be a rendering issue. It could also be the FDI link getting its timings messed up though, and consistently delivering the wrong bits; that could show up in the same place on the screen each time, or it might move in a pattern across the screen (usually from top to bottom). > Will do. I'll have to reboot to the broken kernel (my bisection ended > in a non-broken case) Great, thanks. -- Jesse Barnes, Intel Open Source Technology Center -- 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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