It could be the 'noatime' attribute. I've relatime and it works fine. I've reproduced the problem and update notifier only shows the popup after it being written.
(Before) $ ls -latr /var/crash/ total 31460 drwxr-xr-x 16 root root 4096 2009-07-01 20:14 .. -rw------- 1 kmos kmos 406999 2009-09-08 22:48 _usr_bin_update-notifier.1000.crash -rw------- 1 kmos kmos 610551 2009-09-11 23:35 _bin_bash.1000.crash -rwxr-xr-x 1 root root 0 2009-09-13 09:50 .lock drwxrwxrwt 2 root root 4096 2009-09-13 09:50 . ---------- 1 kmos kmos 31176366 2009-09-13 09:51 _usr_lib_firefox-3.5.3_firefox.1000.crash (After) $ ls -latr /var/crash/ total 32804 drwxr-xr-x 16 root root 4096 2009-07-01 20:14 .. -rw------- 1 kmos kmos 406999 2009-09-08 22:48 _usr_bin_update-notifier.1000.crash -rw------- 1 kmos kmos 610551 2009-09-11 23:35 _bin_bash.1000.crash -rwxr-xr-x 1 root root 0 2009-09-13 09:50 .lock drwxrwxrwt 2 root root 4096 2009-09-13 09:50 . -rw------- 1 kmos kmos 32550943 2009-09-13 09:51 _usr_lib_firefox-3.5.3_firefox.1000.crash ** Changed in: apport (Ubuntu) Status: New => Confirmed -- notifier detects crashes before core is finished being written https://bugs.launchpad.net/bugs/224071 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