I am currently running Jaunty 9.04, and am having the same problem. Firefox does not quit here, even after a few minutes. I ran firefox --debug, then when the process hang, sent it a SIGHUP and generated a stack trace using gdb, this is the output:
Program received signal SIGHUP, Hangup. [Switching to Thread 0x7fd9622f0700 (LWP 9750)] 0x00007fd961ee2a94 in __lll_lock_wait () from /lib/libpthread.so.0 (gdb) bt #0 0x00007fd961ee2a94 in __lll_lock_wait () from /lib/libpthread.so.0 #1 0x00007fd961ede190 in _L_lock_102 () from /lib/libpthread.so.0 #2 0x00007fd961edda7e in pthread_mutex_lock () from /lib/libpthread.so.0 #3 0x00007fd95a155a3c in xcb_writev () from /usr/lib/libxcb.so.1 #4 0x00007fd95caf6dde in _XSend () from /usr/lib/libX11.so.6 #5 0x00007fd95caf6f21 in _XReply () from /usr/lib/libX11.so.6 #6 0x00007fd95caeae13 in XSync () from /usr/lib/libX11.so.6 #7 0x00007fd95cdbaf8a in XRenderFindDisplay () from /usr/lib/libXrender.so.1 #8 0x00007fd95cdb89fe in XRenderFreePicture () from /usr/lib/libXrender.so.1 #9 0x00007fd951482c74 in ?? () from /usr/lib/libQtGui.so.4 #10 0x00007fd951483390 in ?? () from /usr/lib/libQtGui.so.4 #11 0x00007fd9514740f3 in QPixmap::deref () from /usr/lib/libQtGui.so.4 #12 0x00007fd951474434 in QPixmap::~QPixmap () from /usr/lib/libQtGui.so.4 #13 0x00007fd950d9bcfc in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so #14 0x00007fd950da7cf7 in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so #15 0x00007fd9611eb6ed in exit () from /lib/libc.so.6 #16 0x00007fd9611d35ad in __libc_start_main () from /lib/libc.so.6 #17 0x00000000004011b9 in ?? () #18 0x00007fff6a30e748 in ?? () #19 0x000000000000001c in ?? () #20 0x0000000000000001 in ?? () #21 0x00007fff6a3106e3 in ?? () #22 0x0000000000000000 in ?? () (gdb) detach Detaching from program: /usr/lib/firefox-3.0.7/firefox, process 9750 (gdb) quit dazj...@dazjorz-desktop:~$ strace -p 9750 Process 9750 attached - interrupt to quit futex(0xe75c68, FUTEX_WAIT_PRIVATE, 2, NULL^C <unfinished ...> Process 9750 detached -- Firefox is already running message https://bugs.launchpad.net/bugs/308605 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs