973266 - Thunderbird trunk start up takes 1-2 minutes to get to profile manager

Status: RESOLVED WORKSFORME

(Thunderbird :: General, defect)

Description

[Jonathan Kamens]

I just newly rebuilt Thunderbird from trunk code checked out with "python client.py checkout" just a few minutes ago, so it's pretty current.

Thunderbird is taking a huge amount of time to start up. The main window pops up, but then it sits there blank for an incredibly long time before filling with content. For example, it just took 1:45 to start up. 

While it's sitting there blank, there are two Thunderbird processes shown in "ps aux" output with consecutive PIDs. The one with the higher number is sucking 100% of one of my CPUs. When I run strace on it, it's calling "sched_yield" over and over again.

This doesn't happen with the Fedora-built Thunderbird 24.2.0.

Comment 1

[Jonathan Kamens]

This is broken in the 2014-02-15 nightly Linux x86_64 build, but works in the previous 2014-02-14 nightly Linux x86_64 build. I'm not sure how to generate the corresponding changeset.

(Can somebody explain to me how to use the .mar files to reconstruct builds so I don't have to download them all in complete form when bisecting? I couldn't find documentation anywhere for how to do this.)

Comment 2

[Magnus Melin [:mkmelin]]

In -safe-mode too? Because I haven't noticed anything...

Comment 3

[Jonathan Kamens]

Yes, happens with -safe-mode -- several minutes before the safe-mode configuration window pops up.

Even happens with -ProfileManager -- several minutes before the profile manager window pops up -- so apparently whatever is causing the hang is not related to my profile.

Comment 4

[Wayne Mery (:wsmwk)]

If it's slow getting to profile manager I would think it would be a mozilla-central checkin. Approx pushlog range http://hg.mozilla.org/mozilla-central/pushloghtml?startdate=2014-02-14%2004:00:00&enddate=2014-02-15%2005:00:00

if not then comm-central http://hg.mozilla.org/comm-central/pushloghtml?startdate=2014-02-14%2004:00:00&enddate=2014-02-15%2005:00:00

Comment 5

[Jonathan Kamens]

No longer occurring in trunk today.