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    SubjectRe: X "Hangs" with RS690 + 2.6.26
    On Fri, Jul 25, 2008 at 11:10:07AM +0100, Dave Airlie wrote:
    > > I've started to see "hangs" with X on an ATI RS690 with a 2.6.26 kernel.
    > > The symptoms are that load average goes up, X stops accepting keypresses
    > > or mouse clicks, but the cursor still moves around the screen in
    > > response to the mouse being moved. I can't switch to a VT but can ssh in
    > > remotely to see that things are still running. I don't seem to be able
    > > to kill X but "shutdown -r now" cleanly reboots.
    > >
    > > radeon driver is recent git - 1c5858484da4fb1c9bc3ac3b4d7a97863ab99730
    > > but I've seen it with older revisions too.
    > >
    > > It can take a couple of days for me to hit the problem, so a git bisect
    > > could be a lengthy process. If anyone has any suggestions about faster
    > > ways to track down the issue I'd like to hear them.
    >
    > git log v2.6.25..v2.6.26 drivers/char/drm
    ...
    > not sure if you wanna try reverting some of those and seeing which is the
    > cause maybe..

    I never figured out which of these caused the issues, but as a further
    data point for anyone else suffering from the issue 2.6.27-rc kernels
    appear to fix (or at least significantly ease) the problem; I managed a
    23 day uptime on 2.6.27-rc5 with I think one X freeze during that period
    that cleaned up after a Ctrl-Alt-Backspace. Not seen the same thing at
    all on 2.6.27-rc7 (though only ran it for 14 days before rebooting into
    2.6.27 proper).

    J.

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