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    SubjectRe: Revert 737a3bb9416ce2a7c7a4170852473a4fcc9c67e8 ?
    On Wed, Apr 13, 2011 at 02:12:16PM +0200, Michel Dänzer wrote:
    > On Mit, 2011-04-13 at 09:59 +0200, Gabriel Paubert wrote:
    > > On Tue, Apr 12, 2011 at 07:29:22PM +0200, Michel Dänzer wrote:
    > > > On Die, 2011-04-12 at 14:00 +0200, Gabriel Paubert wrote:
    > > > > On Tue, Apr 12, 2011 at 01:46:10PM +0200, Michel Dänzer wrote:
    > > > > > >
    > > > > > > With no_wb=1 the driver goes a bit further but the X server ends
    > > > > > > up in an infinite ioctl loop and the logs are:
    > > > > >
    > > > > > Which ioctl does it loop on? Please provide the Xorg.0.log file as well.
    > > > >
    > > > > From memory, the code was 0x64, which is DRM_RADEON_GEM_WAIT_IDLE.
    > > >
    > > > Note that it's normal for this ioctl to be called every time before the
    > > > GPU accessible pixmap memory is accessed by the CPU. Unless the ioctl
    > > > always returns an error, this may not indicate a problem on its own.
    > >
    > > It seems to be an infinite loop, always returning EINTR because
    > > of regular SIGALRM delivery.
    >
    > That does sound like the GPU locks up. Do you get any messages in dmesg
    > about lockups and attempts to reset the GPU at any time?

    No.

    Gabriel
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