283823 - (my !?) MailNews "hangs" when it should be closing: CPU goes to 18%

Status: RESOLVED WORKSFORME

(MailNews Core :: Networking: IMAP, defect)

Description

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050223] (nightly) (W98SE)

Everything is fine, until I want to "Exit" Mozilla.
"Hangs": have to kill the process, using WinTop.

(I found old (stalled) bug 95130, but they should be different !?)

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8a5) Gecko/20041122] (release) (W98SE)

Closes fine.

Comment 1

[Serge Gautherie (:sgautherie)]

Odd:
this happens only if I never displayed a message: just started the 3-pane window !

Steps:
0. (MAS being closed)
1. Start MailNews, without displaying a message
2. Close/Exit the window !

Comment 2

[Troodon]

See also bug 283523.

Comment 3

[Serge Gautherie (:sgautherie)]

(In reply to comment #1)
> Odd:
> this happens only if I never displayed a message: just started the 3-pane window !

This is not always enough to not get the bug...

> Steps:
> 0. (MAS being closed)
> 1. Start MailNews, without displaying a message
> 2. Close/Exit the window !

But this reproduces it all the time.


(In reply to comment #2)
> See also bug 283523.

That bug seems closely related:
marking it as "blocked" since that other one states that Navigator hangs too,
which is not the case on my computer.

Comment 4

[R.K.Aa.]

Not a mailbug - its has to do with closing windows as such. Behaves just like
recent bug 280427 -> bug 280456, but occures in newer builds
Recently also reported in bug 283523 and bug 284204

Comment 5

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050701] (nightly) (W98SE)

It still happens: I'm not sure how/why.

It can be EXITing MAS, or simply closing MailNews with another window
(Browser/JSConsole) still opened.

I think I looked at it at some point (with WinTop):
there seemed to be "4-5" Windows threads running, and one was having like 15% of
my CPU.

I can't be very specific ... but the hang IS there from times to times :-(

Comment 6

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b2) Gecko/20050705 SeaMonkey/1.0a]
(nightly) (W98SE)

Once again: 8 threads = 7 inactive, 1 taking 17% CPU.

Comment 7

[Serge Gautherie (:sgautherie)]

(In reply to comment #6)
> Once again: 8 threads = 7 inactive, 1 taking 17% CPU.

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b3) Gecko/20050714 SeaMonkey/1.0a]
(nightly) (W98SE)

Same.

Comment 8

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b4) Gecko/20050720 SeaMonkey/1.0a]
(nightly) (W98SE)

My case (8 threads, 17% CPU) could very much be "network" (caused by IMAP and/or
NNTP ?!) related.

Today,

case 1) I set my Network card to Full Duplex, which my current cable modem does
not seem to handle; I clicked on a newsgroup to retrieve the headers; this began
but did not progress very much; I exited the application: got the bug.

case 2) With the restored & supported Half Duplex setting, I got the bug on one
of my exit after reading newsgroups ... I had the idea to check the open network
connections: still opened, there was my IMAP ones, and 2-3 NNTP ones.

Case 2 could be a consequence, but case 1 makes me guess it could be the cause.

Further confirmation from me/others could help ... but that a(nother) way to
investigate.

Comment 9

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b4) Gecko/20050720 SeaMonkey/1.0a]
(nightly) (W98SE)

Happened again: this time, only my 2 IMAP connections were opened.
(I'm pretty sure I had not used NNTP in this session)

Comment 10

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.9a1) Gecko/20050816 SeaMonkey/1.0a]
(nightly) (W98SE)

(still there)

Comment 11

[Serge Gautherie (:sgautherie)]

Attachment: IMAP:5 log of a hanged MailNews close

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.9a1) Gecko/20050907
SeaMonkey/1.1a] (nightly) (W98SE)

I get this bug repeatedly today;
and "worse": I'm closing MailNews, and have to use C-A-D to kill the process,
as launching WinTop for example is delayed until Mozilla is killed :-/

Can a log like this one help ?

NB: From a few tests I tried, it could be that I never get the bug if I go
offline before closing MailNews.
(PS: going back online after going offline and before closing doesn't trigger
the bug either.)

Comment 12

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b4) Gecko/20050910 SeaMonkey/1.0a]
(nightly) (W98SE)

In SMv1.0a candidate too;
but that's still my home computer only so far...

Comment 13

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8) Gecko/20051027 SeaMonkey/1.0b] (release) (W98SE)

(still there)

Comment 14

[Serge Gautherie (:sgautherie)]

(In reply to comment #13)
> (still there)

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.9a1) Gecko/20051030 SeaMonkey/1.1a] (nightly) (W98SE)

(And on Trunk too.)

Comment 15

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.9a1) Gecko/20051124 SeaMonkey/1.5a] (nightly) (W98SE)

I did not got this bug for a while,
then it happened again today.

A wild guess would be that it happens when I close MailNews while Navigator is loading a page.?.

Comment 16

[Serge Gautherie (:sgautherie)]

(In reply to comment #12)
> [Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b4) Gecko/20050910
> SeaMonkey/1.0a]
> (nightly) (W98SE)

(For the record, that build was a release :->)

(In reply to comment #13)
> [Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8) Gecko/20051027 SeaMonkey/1.0b]
> (release) (W98SE)

(For the record, that build was a nightly :->)

Comment 17

[Wayne Mery (:wsmwk)]

last seen ... 2005-11-27?

Comment 18

[Serge Gautherie (:sgautherie)]

(In reply to comment #17)
> last seen ... 2005-11-27?

No, I simply stopped reporting.

I'm pretty sure it still happened until some days/weeks ago with SMv1.5a/Trunk.

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.0.2) Gecko/20060407 SeaMonkey/1.0.1] (nightly) (W98SE)

And it happened only minutes ago with SMv1.0.1 branch.

I think it happened a few times with SMv1.0 on my previous job Win2K too.

(But I still don't have any precise idea on why/when this bug is triggered :-()

Comment 19

[Serge Gautherie (:sgautherie)]

(In reply to comment #18)
> I think it happened a few times with SMv1.0 on my previous job Win2K too.

(That was WinXP, not Win2K.)

Comment 20

[Wayne Mery (:wsmwk)]

bug 283523 is now wfm, so removing this as blocker.

has imap log been examined yet?

Comment 21

[Serge Gautherie (:sgautherie)]

(In reply to comment #20)
> bug 283523 is now wfm, so removing this as blocker.

Then, adding it back, but in the 'depends on' list, to keep the link.

> has imap log been examined yet?

It seems that it has not.
(At this time, I'm too sure (anymore) about anything like the offline/online trick either :-/)

Comment 22

[Serge Gautherie (:sgautherie)]

I'm still seeing this bug in recent SeaMonkey v1.1a nighlies.

After reading bug 246909, let me write that:
I use 'Clean up ("Expunge") Inbox on Exit';
I don't use 'Empty Trash on Exit'.

Then, let's add a dependency to bug 312775 for now.

Comment 23

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.1a3) Gecko/20060617 SeaMonkey/1.1a] (nightly) (W98SE)

Bug 312775 checkin did not solve the current bug.

Comment 24

[Serge Gautherie (:sgautherie)]

Hoping bug 342784 fix solved this bug too...

Comment 25

[Serge Gautherie (:sgautherie)]

[Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8.1a3) Gecko/20060706 SeaMonkey/1.1a] (nightly) (W98SE)

I got it once:
closed Browser and MailNews,
ChatZilla was left but impossible to restore it.

Comment 26

[Wayne Mery (:wsmwk)]

Serge, do you see this in the newer 1.1.xs?

Comment 27

[Wayne Mery (:wsmwk)]

tested on trunk?

Comment 28

[Wayne Mery (:wsmwk)]

Serge, it would be great if we could compare notes on your present situation with this. It may be mail related as you think - TB occasionally fails to close for me.  Or, it could be some thing more central to gecko shutdown.

also, you have regression noted in keywords but don't have a regression range. Did this problem not happen for you prior to 20050223 nightly build?

bug 342784 fixed 2006-07-05 which did not help you so removing dependency.
stm bug 283523 should be removed also - there is no relationship afaict

 

Comment 29

[Serge Gautherie (:sgautherie)]

(Sorry for not answering this for a long time.)

I'm not using Win98SE anymore...
I'm not experiencing hanged process with my Win2K (and whatever build(s) I use nowadays).
I think I sometimes get a little delay during exit ... assuming some cleanup is taking place (maybe related to IMAP ?).

Since the attached log file was never analyzed, I'm R.WorksForMe this bug.
I'll reopen a new/cleaner one if need be.