Created attachment 1270619 [details] Filtered journalctl showing the NULL pointer access at the end Description of problem: With the latest available i686 kernel (4.10.8-200) I am getting frequent session lockups under Gnome with Wayland. The lockups do not seem to happen if I use Gnome under Xorg. When the lockup happens, the entire screen freezes and the keyboard and mouse become unresponsive, although the disk and the WiFi card keep going. I have to hard reset the netbook in order to recover. This lockup seems to happen more when I switch between windows while trying to move the mouse, but this is not a reliable reproducer. The kernel logs show a very clear NULL pointer access at the moment the lockup happens. Log attached. Version-Release number of selected component (if applicable): xorg-x11-drv-intel-2.99.917-26.20160929.fc25.i686 kernel-PAE-core-4.10.8-200.fc25.i686 How reproducible: Frequent Steps to Reproduce: 1. 2. 3. Actual results: Screen lockup Expected results: No lockup Additional info: This is the exact same machine affected by https://bugzilla.redhat.com/show_bug.cgi?id=1438258 .
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Fixed under Fedora 26 in latest kernel (but see also https://bugzilla.redhat.com/show_bug.cgi?id=1438258 and https://bugzilla.redhat.com/show_bug.cgi?id=1498725).