Description of problem: `vblank_mode="" glxgears` dumps core after useful "Fatal error in __driConfigOptions line 10, column 0: illegal default value for vblank_mode: ." Probably not the best way to handle invalid/unexpected values… Version-Release number of selected component: glx-utils-8.1.0-4.fc20 Additional info: reporter: libreport-2.2.2 backtrace_rating: 4 cmdline: glxgears crash_function: parseOptInfoAttr executable: /usr/bin/glxgears kernel: 3.15.5-200.fc20.x86_64 runlevel: N 5 type: CCpp Truncated backtrace: Thread no. 1 (10 frames) #2 parseOptInfoAttr at xmlconfig.c:590 #3 optInfoStartElem at xmlconfig.c:638 #4 doContent at lib/xmlparse.c:2443 #5 contentProcessor at lib/xmlparse.c:2105 #6 doProlog at lib/xmlparse.c:4016 #7 prologProcessor at lib/xmlparse.c:3739 #8 XML_ParseBuffer at lib/xmlparse.c:1651 #9 XML_Parse at lib/xmlparse.c:1617 #10 driParseOptionInfo at xmlconfig.c:709 #11 driCreateNewScreen2 at dri_util.c:183
Created attachment 919319 [details] File: backtrace
Created attachment 919320 [details] File: core_backtrace
Created attachment 919321 [details] File: dso_list
Created attachment 919322 [details] File: environ
Created attachment 919323 [details] File: maps
Created attachment 919324 [details] File: open_fds
Created attachment 919325 [details] File: proc_pid_status
Created attachment 919326 [details] File: var_log_messages
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This is very old bug, if you still can reproduce it - please reopen.
It's very easy to reproduce. It's also a completely trivial bug, which is why I imagine no one cares.
This bug appears to have been reported against 'rawhide' during the Fedora 25 development cycle. Changing version to '25'.
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Please test with latest updates and reopen if still reproducible.
Still reproducible, with exactly the same message even
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This has been fixed at some point: $ vblank_mode="" glxgears illegal environment value for vblank_mode: "". Ignoring. ATTENTION: option value of option vblank_mode ignored. Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. 316 frames in 5.0 seconds = 63.040 FPS