[Bug 764621] Re: /usr/lib/firefox-4.0/plugin-container hangs upon Firefox exit, which prevents computer shutdown from GNOME
Michael Mess
764621 at bugs.launchpad.net
Wed Jan 11 14:19:58 UTC 2012
I just straced the firefox-bin process:
michael at quad:~$ strace -p 18727
Process 18727 attached - interrupt to quit
futex(0xa2cffbd8, FUTEX_WAIT, 18767, NULL) = ? ERESTARTSYS (To be restarted)
--- SIGCHLD (Child exited) @ 0 (0) ---
futex(0xa2cffbd8, FUTEX_WAIT, 18767, NULL) = ? ERESTARTSYS (To be restarted)
--- SIGCHLD (Child exited) @ 0 (0) ---
futex(0xa2cffbd8, FUTEX_WAIT, 18767, NULL) = ? ERESTARTSYS (To be restarted)
--- SIGCHLD (Child exited) @ 0 (0) ---
futex(0xa2cffbd8, FUTEX_WAIT, 18767, NULL) = 0
munmap(0xb62fe000, 8392704) = 0
writev(14, [{"GIOP\1\2\1\5\0\0\0\0", 12}], 1) = -1 EPIPE (Broken pipe)
--- SIGPIPE (Broken pipe) @ 0 (0) ---
close(14) = 0
writev(12, [{"GIOP\1\2\1\5\0\0\0\0", 12}], 1) = -1 EPIPE (Broken pipe)
--- SIGPIPE (Broken pipe) @ 0 (0) ---
close(12) = 0
close(9) = 0
close(8) = 0
unlink("/tmp/orbit-michael/linc-4927-0-3d737aaabe747") = 0
close(13) = 0
close(86) = 0
exit_group(0) = ?
Process 18727 detached
Then I sent SIGCHILD to it some times with no success, because I remembered that SIGCHILD was sometimes useful to reanimate a hanging Netscape process in the past.
When I killed the plugin-container subprocess (kill -9 18768), the firefox-bin process continued and terminated normally.
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https://bugs.launchpad.net/bugs/764621
Title:
/usr/lib/firefox-4.0/plugin-container hangs upon Firefox exit, which
prevents computer shutdown from GNOME
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