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Created attachment 1123645 [details] dmesg.4.3.5-300.fc23.i686+PAE.log Description of problem: After kernel upgrade from 4.2.8 to 4.3.5 and reboot, login to GNOME and kernel error message. GNOME shell responds very slowly most of the times. Multiple intel video driver backtraces are shown in dmesg. Video chipset is i945 GM. Note that this CPU does not support PAT, and kernel 4.2 to 4.3 phased out MTRR in favor of PAT. The same behavior was observed with kernel 4.3.3 Tried with kernel 4.4.1-300.vanilla.knurd.1.fc23.i686+PAE, seems better responding, but still multiple backtraces are shown in dmesg. Version-Release number of selected component (if applicable): kernel How reproducible: Steps to Reproduce: boot the system with kernel > 4.2.8 Multiple ABRT problems and dmesg backtraces are systematically reported with 4.3.3, 4.3.5, 4.4.1 Actual results: Expected results: GNOME desktop responds regularly. No backtraces, no problems in ABRT Additional info: This bug was reported via ABRT as well, and detected as duplicate of 1298878, but I see comments about wireless card there, so I submitted a new one.
Created attachment 1123646 [details] dmesg.4.4.1-300.vanilla.knurd.1.fc23.i686+PAE.log
Created attachment 1123650 [details] dmesg.4.5.0-0.rc3.git2.1.vanilla.knurd.1.fc23.i686+PAE.log Tried with kernel.4.5.0-0.rc3.git2.1.vanilla.knurd.1.fc23.i686+PAE, system boot fails with no consoles, no DM: [ 42.146178] kernel BUG at include/linux/page-flags.h:272! [ 42.146178] invalid opcode: 0000 [#1] SMP at i915_gem_object_attach_phys
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Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.