User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.8) Gecko/20100216 Fedora/3.5.8-1.fc12 Firefox/3.5.8 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.8) Gecko/20100216 Fedora/3.5.8-1.fc12 Firefox/3.5.8 Firefox frequently loops on futex system call after a crash. I let it run awhile but it never seems to recover. This is with the latest debug version of firefox. F S UID PID PPID LWP NLWP CLS PRI ADDR SZ WCHAN STIME TTY TIME CMD 0 S root 14482 1 14482 1 TS 19 - 1228 wait 00:24 pts/12 00:00:00 /bin/sh /opt/firefox.verss/firefox -sync 0 S root 14489 14482 14489 1 TS 19 - 1228 wait 00:24 pts/12 00:00:00 /bin/sh /opt/firefox.verss/run-mozilla.sh /opt/firefox.verss/firefox-bin -sync 4 R root 14493 14489 14493 20 TS 19 - 212462 - 00:24 pts/12 00:30:54 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14494 20 TS 19 - 212462 poll_s 00:24 pts/12 00:00:13 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14497 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14498 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14501 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:14 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14527 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14537 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14538 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 5 S root 14493 14489 14539 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 14589 20 TS 19 - 212462 futex_ 00:24 pts/12 00:08:28 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 14590 20 TS 19 - 212462 futex_ 00:24 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 14742 20 TS 19 - 212462 poll_s 00:25 pts/12 00:00:15 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 14743 20 TS 19 - 212462 poll_s 00:25 pts/12 00:00:47 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 17608 20 TS 19 - 212462 futex_ 00:40 pts/12 00:00:06 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 17700 20 TS 19 - 212462 futex_ 00:41 pts/12 00:00:21 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 18794 20 TS 19 - 212462 poll_s 00:45 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 24084 20 TS 19 - 212462 futex_ 01:18 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 24088 20 TS 19 - 212462 futex_ 01:18 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 24089 20 TS 19 - 212462 futex_ 01:18 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 1 S root 14493 14489 24100 20 TS 19 - 212462 futex_ 01:18 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync 0 S root 24113 1 24113 1 TS 19 - 1228 wait 01:18 pts/12 00:00:00 /bin/sh /opt/firefox.verss/firefox -sync 0 S root 24118 24113 24118 1 TS 19 - 1228 wait 01:18 pts/12 00:00:00 /bin/sh /opt/firefox.verss/run-mozilla.sh /opt/firefox.verss/firefox-bin -sync 4 S root 24122 24118 24122 1 TS 19 - 9916 poll_s 01:18 pts/12 00:00:00 /opt/firefox.verss/firefox-bin -sync Reproducible: Always Actual Results: loop after crash which never ends. see included strace after crash. Expected Results: successful restart It looks like another version of firefox is trying to start but the first instance appears to be looping.

This a gziped output of this command: "strace -xvfp <pid> -o firefox.strace"

Duplicate of/related to bug 505146?

Reporter, are you still seeing this issue with Firefox 3.6.13 or later in safe mode? If not, please close. These links can help you in your testing. http://support.mozilla.com/kb/Safe+Mode http://support.mozilla.com/kb/Managing+profiles You can also try to reproduce in Firefox 4 Beta 8 or later, there are many improvements in the new version, http://www.mozilla.com/en-US/firefox/all-beta.html

Hm, I also see hangs in futex_wait_queue_me in SeaMonkey 2.1b2pre (parallel to Firefox 4.0b9pre), but not in safe mode; see bug 570316 and the about:support listing attached to it. Reporter, I'd be interested to know if we have extensions in common (those which are enabled are listed with "true" next to them).

No reply, INCOMPLETE. Please retest with Firefox 3.6.13 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.