Once asking libdrm maintainer for help.
(Well, in this bugzilla my additional comments are seen first, and next the reporter's first comments appear. Also the reported date looks "in the future", perhaps due to DST change?)
Description of problem: XScreenSaver freezed the computer, needed to reboot. Version-Release number of selected component: xscreensaver-gl-extras-5.20-1.fc17 Additional info: libreport version: 2.0.16 abrt_version: 2.0.16 backtrace_rating: 4 cmdline: pipes -root crash_function: nouveau_pushbuf_flush kernel: 3.4.11-1.rt19.2.fc17.ccrma.x86_64.rt truncated backtrace: :Thread no. 1 (10 frames) : #4 nouveau_pushbuf_flush at nouveau_pushbuf.c:274 : #5 MARK_RING at /usr/include/nouveau/nouveau_pushbuf.h:55 : #6 nv50_vertex_arrays_validate at nv50_vbo.c:341 : #7 nv50_state_validate at nv50_state_validate.c:393 : #8 nv50_draw_vbo at nv50_vbo.c:660 : #9 st_draw_vbo at state_tracker/st_draw.c:1128 : #10 vbo_save_playback_vertex_list at vbo/vbo_save_draw.c:298 : #11 ext_opcode_execute at main/dlist.c:602 : #12 execute_list at main/dlist.c:7505 : #13 _mesa_CallList at main/dlist.c:8922
Created attachment 637874 [details] File: core_backtrace
Created attachment 637875 [details] File: environ
Created attachment 637876 [details] File: limits
Created attachment 637877 [details] File: backtrace
Created attachment 637878 [details] File: cgroup
Created attachment 637879 [details] File: smolt_data
Created attachment 637880 [details] File: maps
Created attachment 637881 [details] File: dso_list
Created attachment 637882 [details] File: proc_pid_status
Created attachment 637883 [details] File: open_fds
Created attachment 637884 [details] File: var_log_messages
This message is a reminder that Fedora 17 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 17. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '17'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 17's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 17 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior to Fedora 17's end of life. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 17 changed to end-of-life (EOL) status on 2013-07-30. Fedora 17 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. Thank you for reporting this bug and we are sorry it could not be fixed.