[Bug 1012858] Re: "Sending of message failed" dialog needs 100% of one CPU as long as it is open.

Thu Jun 14 19:34:04 UTC 2012

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On 2012-04-05T12:52:38+00:00 Marek-nos wrote:

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0
Build ID: 20120312181643

Steps to reproduce:

1) Set SMTP server to one that timeout, particularly my network doesn't allow pings or more specific limitation. The SMTP definitely works outside this network.
2) Try to send an email

Actual results:

3) Message that connection to SMTP timeouted
4) CPU usage is raised to 50% (one core) until the message is clicked

Expected results:

3) Message that connection to SMTP timeouted
4) CPU usage is standard

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/0

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On 2012-04-06T07:22:15+00:00 hashemmasoud wrote:

(In reply to Marek Nos from comment #0)
Found 2 similar bugs: bug 311663 & bug 189738.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/1

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On 2012-04-09T15:20:58+00:00 Ludovic-mozilla wrote:

Marek can you follow the instructions at
https://developer.mozilla.org/en/How_to_get_a_stacktrace_with_WinDbg and
get us a stack trace of your issue ?

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/2

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On 2012-04-10T14:36:17+00:00 Marek-nos wrote:

Created attachment 613600
stacktrace

Running this tool for the first time. Excuse any incompleteness. This is
what I got.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/3

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On 2012-04-10T15:33:35+00:00 Acelists wrote:

Is that SMTP server public so that you could tell us the host name? We
do NOT need any username/password. We can try to connect to it and wait
for the timeout.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/4

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On 2012-04-10T15:48:09+00:00 Marek-nos wrote:

smtp.centrum.cz:25

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/5

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On 2012-04-10T16:15:05+00:00 Marek-nos wrote:

note: CPU usage is raised right after Thunderbird starts connecting to
SMTP server, not after timeout message is shown.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/6

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On 2012-04-10T17:03:16+00:00 Dbienvenu wrote:

nothing useful in that stack trace, unfortunately.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/7

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On 2012-04-11T19:58:53+00:00 Acelists wrote:

I got the raised CPU usage just after pressing Send, but I assume that
is the spinning progressbar about "Connected to server XXX". It was just
about 25% of a 3Ghz core.

I could not get the timeout from the server. I connected to it but did
not provide any password. I let TB hang in the dialog requesting the
password. After several minutes I gave a wrong password. The dialog
closed and the send failed. But I didn't get any high CPU usage.

What should I try next?

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/8

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On 2012-04-11T20:38:24+00:00 Marek-nos wrote:

Created attachment 614146
Steps to reproduce

To be correct it took 50% on my machine. Now I checked per core and it
took more or less equally around 50% from each core. So maybe its
natural load. But the load is there since I clicked send [1], then
timeout message appeared. Load was still there until I clicked either
cancel sending [2] or OK on timeout message [3] which in turn cancels
sending. But when cancel sending [2] is clicked then timeout message is
still there, but load drops. So it's definitely not caused by timeout
message, but the connecting part, and it takes load (quite high) even
timeout message is there. See attached image for more explanation on
steps.

>From user perspective, this SMTP is supposed to be available and should
require log in. Don't know why it timeouts for me or if the error is
somewhere else. Try at different networks with same result. It might be
related to this high load.

Secure connection is none, authentication is set to password.

C:\Users\Marek Nos>telnet smtp.centrum.cz 25
Connecting To smtp.centrum.cz...Could not open connection to the host, on port 25: Connect failed

It does work for you?

Reply at: https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/9

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On 2012-04-11T20:57:51+00:00 Acelists wrote:

Yes, I can connect to the server via telnet. Also TB log file shows it
talked to the server.

Maybe that is the problem, that you do not even connect to the server and get the timeout. I used a nonexistent server now. I got timeout immediately and the progressbar still spinning.
Also notice there is another small progress bar in the bottom right corner of the compose window. So all those animations could be quite heavy, maybe they are redrawing too frequently. I can confirm this part of the bug.

Just for reference, what is your CPU?

Reply at:
https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/10

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On 2012-04-12T13:56:58+00:00 Marek-nos wrote:

Intel Core2 duo U9400, 1.4 ghz

Reply at:
https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/11

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On 2012-06-14T07:58:42+00:00 Acelists wrote:

*** Bug 764701 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/thunderbird/+bug/1012858/comments/15

** Changed in: thunderbird
       Status: Unknown => Confirmed

** Changed in: thunderbird
   Importance: Unknown => Medium

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Title:
  "Sending of message failed" dialog needs 100% of one CPU as long as it
  is open.

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