User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b8pre) Gecko/20101127 Firefox/4.0b8pre Build Identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0b8pre) Gecko/20101127 Firefox/4.0b8pre For the past week or so, Minefield sometimes will hang when I try to quit the browser. The browser must then be force quit. Reproducible: Sometimes Steps to Reproduce: 1. Command-Q 2. Minefield's windows close 3. Minefield appears active in the dock. OS X reports the application as hung. Minefield must be force-quit. Actual Results: Minefield hangs. Expected Results: Minefield quits.

ive noticed the same thing with 4.0b8 on 32bit linux i'll try to get a better backtrace next time it happens

There is a known bug for FF on OSX. The browser goes into the offline mode and hangs if you quit it. Could it be that bug ?

sounds very likely now that i have this line from the backtrace #10 0xb6cf6272 in nsSocketTransportService::Shutdown (this=0xb3e18000) at ../../../../netwerk/base/src/nsSocketTransportService2.cpp:465 #11 0xb6ce1fe8 in nsIOService::SetOffline (this=0xb581f000, offline=1) at ../../../../netwerk/base/src/nsIOService.cpp:729 except my end is running 32bit linux another posibly related bug is that the menubar becomes non-responsive when i go into offline mode, and then i cant bring it back online

I don't think that the browser is going into offline mode. At least, if it is, I can't tell, because the browser has already closed all its windows and no longer responds. I'm certainly not putting it into offline mode myself...

nsXREDirProvider::DoShutdown (this=0xbfffe3f0) at toolkit/xre/nsXREDirProvider.cpp:798 this function sends out profile-change-net-teardown, which then triggers nsIOService::SetOffline which attempts to shutdown the IO thread however the IO thread itself is hung on something else, nsSocketTransportService::DetachSocket (this=0xb3e18000, sock=0xb3e18290) at netwerk/base/src/nsSocketTransportService2.cpp:187 so it never detects that mShuttingDown == true, and never shuts down

I've reproduced the same backtrace on a local compile of Firefox, so now gdb isn't fighting me any more, I'll see if i can debug it more when i have time

This sounds like a dupe of bug 614286 to me...

Should be fixed by bug 614286. If you can reproduce this after that bug's landing, please reopen.

i think i reproduced it under baa5ae44f0ba, but the debug symbols where missing again

(In reply to comment #10) > i think i reproduced it under baa5ae44f0ba, but the debug symbols where missing > again This should be addressed by bug 614958. Please file a new bug and CC me on it if you can reproduce this with a revision after the fixes for that bug.

I'm not sure if this is part of the same bug or not, but I've noticed that over the past few days, Minefield has thought that it was in offline mode after my Mac wakes from sleep. However, I don't put it into offline mode, Offline Mode isn't checked, and my network is clearly up, because other programs are using it immediately upon wake.

(In reply to comment #12) > I'm not sure if this is part of the same bug or not, but I've noticed that over > the past few days, Minefield has thought that it was in offline mode after my > Mac wakes from sleep. However, I don't put it into offline mode, Offline Mode > isn't checked, and my network is clearly up, because other programs are using > it immediately upon wake. Yes, that is part of that bug.