760859 - thunderbird blocks UI completely (Not Responding) / beach ball while saving draft message with big files attached

Status: NEW

(Thunderbird :: Message Compose Window, defect)

Description

[matteo sisti sette]

User Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5

Steps to reproduce:

Make sure autosave is turned on
Start composing a new message.
Attach some big file (such as a few megabytes)
keep typing the new message


Actual results:

Every once in a while, when the message is automatically saved, thunderbird completely blocksb and stops responding until saving is done. This can take several seconds


Expected results:

Oh, do I need to say it? Saving should be done asynchronously and shouldn't block the interface.

Comment 1

[Hashem Masoud]

(In reply to matteo sisti sette from comment #0)
I think you need to enable SMTP logging https://wiki.mozilla.org/MailNews:Logging After that, we can see where the issue is.

There was a similar bug (bug 716791). Do you have anti-virus installed?

Comment 2

[matteo sisti sette]

No antivirus, no (do they even exist in Linux?)

Comment 3

[[:Aureliano Buendía]]

Most probably this is a dupe of bug #319058: matteo do you agree?

Comment 4

[matteo sisti sette]

They are two different issues. Saving should be done asynchronously in a separate thread  regardless of whether or not attachment are attached when autosaving.
The issue in this report is not that saving takes too long, it's that it blocks Thunderbird during the whole time it takes.

Obviously not attaching the attachments would make this bug much less relevant, but indeed I don't even agree that the attachments should not be included when autosaving. They should be included _and_ re-attached from source prior to sending if still available.

Comment 5

[Wayne Mery (:wsmwk)]

I can reproduce this.  And I would expect beach ball on Mac.  The larger the file, and I assume the slower the server, the larger the delay.  I tested with a mere 46MB file.

bug 319058 should be investigated IMO, though perhaps not even possible to do, given how we  handle attachments (I think starting in v3?)

anyway, I don't find any obvious duplicates. confirming

Comment 7

[Wayne Mery (:wsmwk)]

Would also likely be helped by bug 1116055

Comment 9

[Wayne Mery (:wsmwk)]

Alfred, can you test and get a profile link for this?

1. Use Thunderbird 68 or newer - beta or current nightly build
2. Install profiler add-on into thunderbird - get the add-on file from https://github.com/firefox-devtools/Gecko-Profiler-Addon/blob/master/gecko_profiler.xpi?raw=true and in Tools > add-ons click the gear to install add-on from file
3. Follow instructions at https://profiler.firefox.com/ Also see videos based on Firefox, but applicable to Thunderbird.
4. Create a profiler URL and post it here.