Fresh install of xubuntu on VirtualBox, 32bit. error occurs only on 2nd and subsequent reboots. xfce4-notifyd assert failure: *** Error in `/usr/lib/i386-linux-gnu/xfce4/notifyd/xfce4-notifyd': double free or corruption (fasttop): 0x022dd7c0 ***
Could you try to get a backtrace of this bug by running xfce4-notifyd through gdb?
Simon Steinbeiss referenced this bugreport in commit 112bd7f0b4859c043df6e0c6cfa3052e807210f6 Fix crash because of double-free (Bug #14060) https://git.xfce.org/apps/xfce4-notifyd/commit?id=112bd7f0b4859c043df6e0c6cfa3052e807210f6
This bug should be fixed, please test!
Should be fixed in 0.4.2
Marking as fixed. Please re-open if you can still reproduce this bug with 0.4.2.