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mutter
mutter-bsc1133445-Fix-time-comparison-bug-causi...
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File mutter-bsc1133445-Fix-time-comparison-bug-causing-hang.patch of Package mutter
From 6be56de14010b175eba76b6dcaa44184a0d7545c Mon Sep 17 00:00:00 2001 From: Jeff Smith <whydoubt@gmail.com> Date: Wed, 31 Jan 2018 23:27:19 -0600 Subject: [PATCH] backends/x11: Fix time-comparison bug causing hang A comparison in translate_device_event() does not account for the fact that X's clock wraps about every 49.7 days. When triggered, this causes an unresponsive GUI. Replace simple less-than comparison with XSERVER_TIME_IS_BEFORE macro, which accounts for the wrapping of X's clock. Closes: https://gitlab.gnome.org/GNOME/mutter/issues/12 --- src/backends/x11/meta-backend-x11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/backends/x11/meta-backend-x11.c b/src/backends/x11/meta-backend-x11.c index 233532435..f447f785f 100644 --- a/src/backends/x11/meta-backend-x11.c +++ b/src/backends/x11/meta-backend-x11.c @@ -112,7 +112,7 @@ translate_device_event (MetaBackendX11 *x11, if (!device_event->send_event && device_event->time != CurrentTime) { - if (device_event->time < priv->latest_evtime) + if (XSERVER_TIME_IS_BEFORE (device_event->time, priv->latest_evtime)) { /* Emulated pointer events received after XIRejectTouch is received * on a passive touch grab will contain older timestamps, update those -- 2.16.4
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