Yeah, it should. Thanks for the ping.
Marking fixed with commit fe4c774c572e3f55a7417f0ca336ae1479a966ad
Author: Nikhil Mahale <nmah...@nvidia.com>
Date: Sat Jan 24 17:06:59 2015 -0800
os: Fix timer race conditions
Fixing following kind of race-conditions -
WaitForSomething()
|
----> // timers -> timer-1 -> timer-2 -> null
while (timers && (int) (timers->expires - now) <= 0)
// prototype - DoTimer(OsTimerPtr timer, CARD32 now,
OsTimerPtr *prev)
DoTimer(timers, now, &timers)
|
|
----> OsBlockSignals(); .... OS Signal comes just before
blocking it,
.... timer-1 handler gets called.
// timer-1 gets served and
scheduled again;
// timers -> timer-2 ->
timer-1 -> null
....
*prev = timer->next;
timer->next = NULL; // timers -> null
// timers list gets corrupted here and timer-2 gets
removed from list.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=86288
Signed-off-by: Nikhil Mahale <nmah...@nvidia.com>
Reviewed-by: Julien Cristau <jcris...@debian.org>
v2: Apply warning fixes from Keith Packard <kei...@keithp.com>
Reviewed-by: Aaron Plattner <aplatt...@nvidia.com>
Signed-off-by: Aaron Plattner <aplatt...@nvidia.com>
Signed-off-by: Keith Packard <kei...@keithp.com>
os/WaitFor.c | 41 ++++++++++++++++++++++++++---------------
1 file changed, 26 insertions(+), 15 deletions(-)
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1220426
Title:
[nvidia-prime]Freeze while using touchpad
Status in X.Org X server:
Fix Released
Status in xorg-server package in Ubuntu:
Triaged
Bug description:
Using Asus N43SL laptop as an example, with nvidia-prime installed, so
the dedicated NVIDIA graphics card (GT 540m) is in use, once in a
while, my screen will freeze when I use my touchpad.
WORKAROUND: Use USB mouse.
WORKAROUND: Uninstall nvidia-prime and use integrated graphics.
WORKAROUND: Do a VT switch via Ctrl+Alt+F1 then Ctrl+Alt+F7.
In the attached Xorg.0.log, you can see "synaptics: ETPS/2 Elantech Touchpad:
touchpad found" each time I did a VT switch and regained control:
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1220426/+attachment/3801516/+files/Xorg.0.log
The following upstream report has a patch that addresses this issue:
https://bugs.freedesktop.org/show_bug.cgi?id=86288
To manage notifications about this bug go to:
https://bugs.launchpad.net/xorg-server/+bug/1220426/+subscriptions
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