Uncaught Exception NS_ERROR_FAILURE JS frame :: chrome://navigator/content/tabbrowser.xml :: line 2364



9 years ago
8 years ago


(Reporter: Hb, Unassigned)


Firefox Tracking Flags

(Not tracked)





9 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20091011 Lightning/1.0pre SeaMonkey/2.0pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20091011 Lightning/1.0pre SeaMonkey/2.0pre AND Mozilla/5.0 (X11; U; Linux i686; de; rv: Gecko/20091008 Lightning/1.0pre SeaMonkey/2.0pre

Closing the MailNews window throws an uncaught exception, even in new profile.

Reproducible: Always

Steps to Reproduce:
1. Close the MailNews window
Actual Results:  
Error console shows:
Error: uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIObserverService.removeObserver]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: chrome://navigator/content/tabbrowser.xml ::  :: line 2364"  data: no]
[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv: Gecko/20091007 SeaMonkey/2.0] (release, rc1) (W2Ksp4)

Code is
2364           os.removeObserver(this, "browser:purge-session-history");

Obviously, Session Restore is not yet implemented for MailNews...
Component: MailNews: Message Display → Session Restore
Flags: wanted-seamonkey2.0?
QA Contact: message-display → session.restore
Version: unspecified → Trunk
But if we do call the dtor, we should have called the ctor as well, so must be more going wrong here...
Caused by bug 521803, which hinders the observer registration in the ctor.
Depends on: 521803
Flags: wanted-seamonkey2.0?
[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.3a1pre) Gecko/20100131 SeaMonkey/2.1a1pre] (home, optim default) (W2Ksp4)

(Bug still there.)
It happens during mochitest-chrome test_idcheck.xul too. (line is 2380 now).

Comment 5

8 years ago
Is this bug about sessionstore ? Seems wrong component ...

Comment 6

8 years ago
Does it still happen? Does it belong in a different component?
(In reply to comment #6)
> Does it still happen?

Yes, see bug 613823 comment 1, for example.
This bug just needs bug 521803 to be fixed...
2688           os.removeObserver(this, "browser:purge-session-history");
2689           this.savedBrowsers.forEach(function(aTabData) {
2690             delete aTabData._tab;
2691             delete aTabData._browser;
2692             delete aTabData._history;
2693           });
2694         ]]>
2695       </destructor>

Iiuc, not executing the forEach loop might be causing memory leaks and/or later logic errors...
Would that make you reconsider wanted/blocking flags for bug 521803?


8 years ago
Depends on: 628918
No longer depends on: 521803

Comment 9

8 years ago
Now that bug 628918 has landed these errors should go away. Serge?

Comment 10

8 years ago
Fixed by bug 628918.
Last Resolved: 8 years ago
Resolution: --- → FIXED
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