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Description of problem: Running Fedora 15, current on updates. In Firefox, navigate to any https page, click just to left of https to bring up security info. Security summary dialog then appears "you are xxxx, verified by yyyy". Lower right hand corner button says "More information" Clicking this button causes system lockup * Running top shows firefox climbs to 100% of cpu * X / gnome3 no longer accepts events, not possible to bring up any other window to check stack trace or get any additional information. * Only way to bring back system has been to power down * Happens for both verified and self signed certificates * Running the 64 bit version Version-Release number of selected component (if applicable): firefox-7.0-1.fc15.x86_64 How reproducible: always Steps to Reproduce: 1. navigate to any https page 2. bring up certificate summary 3. click more information Actual results: Total system lockup. X no longer accepts any events, changing windows impossible. Expected results: Display of certificate Additional info: I've tried a few things to try and isolate the problem further. Rebooting to an older kernel does not affect the problem. /var/log/messages does not show any message that indicates a problematic component. Not sure how to troubleshoot further, when this occurs my system is effectively dead.
When it happens can you attach gdb to it? Find the firefox pid and attach debugger by: $gdb --pid=xxx where xxx is the pid. Don't forget to install debuginfo packages by: #debuginfo-install firefox xulrunner when the gdb is attached, please list the backtrace here. (by "thread apply all bt" gdb commnad).