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Sometimes when a user logs out of GNOME the session becomes responsive instead of logging out. When this happens, gnome-session is stuck in a futex() call and the user's .xsession-errors file mentions finding a corrupted double-linked list. The deadlock appears to be because the process of printing the error during a call to realloc is calling dlopen and then malloc again, which is not allowed. A backtrace is attached. So the problem seems to be in both (a) gnome-session, which has a memory corruption somewhere, and (b) glibc, which shouldn't deadlock while trying to print the error message. Version-Release number of selected component (if applicable): glibc-2.14-5.x86_64 gnome-session-3.0.1-2.fc15.x86_64 How reproducible: Unknown, but in a lab of 35 machines four ended up locked up Steps to Reproduce: 1. Log out of GNOME session. Actual results: Session stops responding Expected results: Session should log out
Created attachment 526092 [details] Backtrace of deadlocked gnome-session process
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