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[Bug Watch Updater <788102@xxxxxxxxxxxxxxxxxx>]

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https://bugzilla.mozilla.org/show_bug.cgi?id=579260.

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On 2010-07-16T05:37:51+00:00 Roc-ocallahan wrote:

Scrolling the main GMail window is slow. It should be super fast.

One issue is that the GMail window contains an IFRAME with all the
actual content. That IFRAME's viewport scrollframe is not always active,
we only activate it on a timer. So when you scroll, it's flipping
between active and inactive a lot, which forces repainting of the entire
window a lot.

So there's a few things we could do:
1) Increase the scroll activity timeout so we don't flip between active and inactive while scrolling. In selected cases we could make the timeout infinite.
2) Item 1 means we'll be displaying non-subpixel-AA text for longer, so we should fix that for as many cases as possible (including GMail) by detecting when a transparent ThebesLayer has a solid color behind it, and making the ThebesLayer opaque with that background color. That will also speed up drawing and compositing.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/0

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On 2010-07-17T00:27:29+00:00 Matjk7 wrote:

Roc I noticed some slow scrolling cases that happen only if you hover a
particular area, for instance on
http://upload.wikimedia.org/wikipedia/commons/2/2c/USA_New_Jersey_location_map.svg
if you mouse over the image it scrolls slowly, but on the white area it
scrolls fine. This seems to happen on embed youtube videos as well. Are
they related to this bug or is it something else?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/1

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On 2010-07-17T20:09:10+00:00 Mbeltzner wrote:

I suggest that we block final release on this; GMail's a pretty key site
:)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/2

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On 2010-07-23T22:26:37+00:00 Peter-vanderwoude wrote:

I don't know if bug 581576 is the same issue, if so, please feel free to
duplicate and make it block final release.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/3

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On 2010-08-10T00:56:50+00:00 Roc-ocallahan wrote:

*** Bug 583038 has been marked as a duplicate of this bug. ***

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/4

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On 2010-08-30T15:07:24+00:00 Mbeltzner wrote:

--> beta6+

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/5

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On 2010-09-15T12:10:34+00:00 Trapanator wrote:

me too on pre beta7

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/6

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On 2010-09-15T12:11:00+00:00 Trapanator wrote:

please ignore my above comment

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/7

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On 2010-10-20T23:23:38+00:00 geeknik wrote:

Would this bug also cover the slow scrolling on Google Reader?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/8

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On 2010-10-28T04:38:08+00:00 Mbeltzner wrote:

Roc, what's our plan here going forward? Just want to make sure this
doesn't fall off the radar.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/9

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On 2010-11-21T15:24:45+00:00 Scott wrote:

Is there any progress going into this bug or atleast has the cause been
investigated?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/10

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On 2010-11-21T23:10:39+00:00 Roc-ocallahan wrote:

If there had been, I would have commented.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/11

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On 2010-11-29T08:35:43+00:00 Roc-ocallahan wrote:

The changes I mentioned in comment #0 were made in other bugs.

I tested scrolling in GMail's conversation view and folder view. During
continuous scrolling, at each step we're only painting the scrollbar and
the horizontal strip that was scrolled into view. This is good. It's
still true even when a chat pane is open --- the chat pane is placed in
its own layer, so doesn't cause extra repainting. Everything is working
as designed there.

This bookmarklet:
javascript:void((function(){var%20i=0;var%20start=Date.now();function%20f(){if(++i==50){alert((Date.now()-start)+"ms");return;}document.getElementsByTagName('iframe')[4].contentWindow.scrollTo(0,i*5);setTimeout(f,10);}f();})())
is a good way of measuring GMail scrolling performance.

In a big folder view (100 threads of my Bugzilla folder), I get about
2900ms (Linux, megafast PC) without GPU acceleration. That's about 58ms
per frame which is definitely not good. (With GL acceleration it's a
little slower, which is probably expected on this testcase, since on
this machine the X server is perfectly capable of keeping up as it
composites everything asynchronously.)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/12

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On 2010-11-29T08:53:10+00:00 Roc-ocallahan wrote:

Er, those numbers were for a debug build. For an opt build, it's 2200ms.
That's still 44ms per frame, so still room for improvement!

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/13

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On 2010-11-29T09:02:04+00:00 Roc-ocallahan wrote:

Er, fail again. I was measuring a different version of the bookmarklet
that scrolled through a lot more frames. With the bookmarklet above, my
opt build takes about 560ms if I run the bookmarklet repeatedly, about
700ms if I wait for five seconds between each invocation (which lets the
scroll activity timer expire).

So that's better than 60fps. If GMail scrolling speed is a problem, I'll
need a slower machine to see it :-).

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/14

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On 2010-11-29T09:06:44+00:00 geeknik wrote:

I've used the bookmarklet here and gotten 521ms. PC is running Windows 7
Pro x64, GeForce 7950GT, Core i7-920 @ 2.8ghz, 6GB DDR3, etc etc.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/15

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On 2010-11-29T09:19:05+00:00 Roc-ocallahan wrote:

That's pretty fast. Does GMail scrolling feel fast to you in practice?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/16

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On 2010-11-29T09:29:08+00:00 geeknik wrote:

I don't have any scrolling issues with Gmail at this time.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/17

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On 2010-11-29T22:29:28+00:00 Roc-ocallahan wrote:

On my nearly-4-year-old Macbook Pro, I get around 1200ms for 50 frames.
Not bad, but less than 60fps. I'll dig into this a little more.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/18

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On 2010-11-29T23:18:03+00:00 Roc-ocallahan wrote:

76% of the time is under _handleWindowNeedsDisplay --- painting. The
rest is system/Appkit overhead plus some event firing (timeout events,
scroll events).

Under painting:

16.7% under BuildDisplayListForStackingContext (display list construction)
10% under nsDisplayList::ComputeVisibilityForRoot (computing visible rects for everything)
9.3% under FrameLayerBuilder::BuildContainerLayerFor (layer construction)
2.5% under FrameLayerBuilder::WillEndTransaction (updating FrameLayerBuilder stuff)
31.7% under BasicLayerManager::EndTransaction (compositing layer tree)

Under EndTransaction:
10% painting the scrolled-into-view contents of ThebesLayers
21% drawing ThebesLayerBuffers into the destination. Almost all of that is in CGBlt_copyBytes --- memcpy.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/19

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On 2010-11-30T22:07:04+00:00 Roc-ocallahan wrote:

Created attachment 494154
GMail folder view display list

Looking into ComputeVisibilityForRoot, the cost is all about
nsDisplayClip::ComputeVisibility and the region manipulation it does.

This is a dumped display list for the GMail folder view. There are 1353
display items, of which 565 are nsDisplayClip. That seems excessive!

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/20

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On 2010-12-10T04:24:15+00:00 Roc-ocallahan wrote:

I'm going to take this off the blocker list. Scrolling GMail is not
really slow at this point. If anyone disagrees, renominate with some
performance data and a definition of what "slow" means :-)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/21

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On 2010-12-10T05:01:57+00:00 Scott wrote:

(In reply to comment #21)
> I'm going to take this off the blocker list. Scrolling GMail is not really slow
> at this point. If anyone disagrees, renominate with some performance data and a
> definition of what "slow" means :-)

Seems fine here, no bad scroll performance or cpu usage during scroll
(even on c2d laptop). Should probably be marked as resolved??

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/22

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On 2010-12-10T11:54:59+00:00 Roc-ocallahan wrote:

I'm going to leave it open because I can still make it a bit faster and
it probably is slow for someone :-)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/23

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On 2011-01-13T01:30:36+00:00 Shaunld wrote:

Using the bookmarklet,

1. 4111 ms
2. 3944 ms
3. 3973 ms

on an i945GM, Core Duo laptop.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/24

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On 2011-01-13T01:38:29+00:00 geeknik wrote:

In comment #15, I posted a time of 521ms. I just ran the bookmarklet
again, same machine, same specs and got 1035ms, 1200ms, 871ms, 1105ms
and 825ms. Latest nightly build (Built from http://hg.mozilla.org
/mozilla-central/rev/c0e05d518f57).

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/25

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On 2011-01-13T01:53:29+00:00 Boxerboi76 wrote:

I'm getting 1377ish consistently using build: Mozilla/5.0 (Windows NT
5.1; rv:2.0b10pre) Gecko/20110112 Firefox/4.0b10pre ID:20110112135818

It's jerky at times when scrolling in GMail.

~B

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/26

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On 2011-01-13T02:40:50+00:00 Roc-ocallahan wrote:

Shaun, Brian, Bryan: are you using acceleration or not?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/27

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On 2011-01-13T02:55:53+00:00 geeknik wrote:

I'm not using smooth scrolling, never liked it, and even with the scores
I got from the bookmarket, it seems to scroll fine for me.

Graphics (about:support)
Adapter Description NVIDIA GeForce 7950 GT
Vendor ID 10de
Device ID 0295
Adapter RAM 256
Adapter Drivers nvd3dumx,nvd3dum
Driver Version 8.17.12.6099
Driver Date 10-16-2010
Direct2D Enabled false
DirectWrite Enabled true
WebGL Renderer TransGaming Inc. -- ANGLE -- OpenGL ES 2.0 (git-devel Jan 12 2011 04:24:03)
GPU Accelerated Windows1/1 Direct3D 9

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/28

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On 2011-01-13T02:56:22+00:00 Boxerboi76 wrote:

Robert, yes I'm using acceleration:

Adapter Description: NVIDIA Quadro FX 4600
Vendor ID: 10de
Device ID: 019e
Adapter RAM: Unknown
Adapter Drivers: nv4_disp
Driver Version: 6.14.12.5981
Driver Date: 9-26-2010
Direct2D Enabled: false
DirectWrite Enabled: true
WebGL Renderer: TransGaming Inc. -- ANGLE -- OpenGL ES 2.0 (git-devel Jan 11 2011 15:51:27)
GPU Accelerated Windows: 1/1 Direct3D 9

~B

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/29

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On 2011-01-13T02:57:52+00:00 Boxerboi76 wrote:

Let me also add that I'm not using smooth scrolling either.

~B

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/30

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On 2011-01-13T03:06:48+00:00 Roc-ocallahan wrote:

1000ms is about 50fps which is a reasonable scrolling speed.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/31

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On 2011-01-13T03:23:46+00:00 Boxerboi76 wrote:

Robert, what would be the cause of the occasional jerkiness?  I don't
have much of anything running on this box.  I also noticed that
scrolling in gmail using that bookmarklet as well as with my scroll
wheel sends CPU up in the high 40's percentage wise.

~B

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/32

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On 2011-01-13T03:24:34+00:00 Roc-ocallahan wrote:

I don't know, jerkiness is hard to diagnose.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/33

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On 2011-01-13T04:28:40+00:00 Shaunld wrote:

My chipset is completely blocklisted.

Adapter Description: V1.2 Sherry Driver for 945
Vendor ID: 0000
Device ID: 27a2

Adapter RAM: Unknown
Adapter Drivers: igdumdx32 igd10umd32

Driver Version: 1.2.0.9190
Driver Date: 8-15-2010

Direct2D Enabled: false
DirectWrite Enabled: false

WebGL Renderer: TransGaming Inc. -- ANGLE -- OpenGL ES 2.0 (git-devel
Jan 12 2011 04:24:03)

GPU Accelerated Windows: 0/1

(This is with all the forced options set to true)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/34

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On 2011-01-14T07:50:28+00:00 geeknik wrote:

Just retested this with an updated video card. Went from a 7950GT to an
8600GT. Not much of an upgrade, but at least it supports CUDA and DX10.
=)

811ms, 770ms, 766ms, 799ms, 775ms

Adapter Description NVIDIA GeForce 8600 GT 
Vendor ID 10de
Device ID 0402
Adapter RAM 256
Adapter Drivers nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
Driver Version 8.17.12.6099
Driver Date 10-16-2010
Direct2D Enabled true
DirectWrite Enabled true
WebGL Renderer TransGaming Inc. -- ANGLE -- OpenGL ES 2.0 (git-devel Jan 13 2011 03:37:36)
GPU Accelerated Windows 2/2 Direct3D 10

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/35

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On 2011-01-24T09:02:42+00:00 Shaunld wrote:

Is there any more data I can submit (using simple tools which give
reproducible results) from my entry-level setup which will help the
debugging?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/36

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On 2011-01-28T02:26:21+00:00 Daniel Holbert wrote:

(FWIW, I filed bug 629568 on another scrolling slowdown w/ layers
enabled, using a bookmarklet similar to the one in this bug.  That one
appears to be a Linux-specific issue (or at least magnified-on-linux),
hence filing a separate bug.)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/37

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On 2011-01-31T17:52:30+00:00 Farley13 wrote:

Wanted to add one note here about CPU use - on a system with not much
else running, scrolling looks good to me (~900 ms using the bookmarklet)
however this came at a cost of about 65% cpu usage peak. Your
bookmarklet in Safari gave me ~600 ms and only a 30% cpu usage.

I can imagine some of these complaints may stem from systems under load.
Moving the scroll bar around manually (vigorously!) I could get up to
90% use, Safari peaked at about 30% which eliminates running the
bookmarklet as the primary cpu use.

Was using top -s 1 with 10 trials for the cpu.

Build:

Firefox Version 4.0b10 User Agent Mozilla/5.0 (Macintosh; Intel Mac OS X
10.6; rv:2.0b10) Gecko/20100101 Firefox/4.0b10 - Direct2D Enabled false
| DirectWrite Enabled false WebGL Renderer ATI Technologies Inc. -- ATI
Radeon X1600 OpenGL Engine -- 2.0 ATI-1.6.24GPU Accelerated Windows0/1

Safari Version 5.0.3 (6533.19.4)

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/38

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On 2011-02-01T00:48:54+00:00 Roc-ocallahan wrote:

What if you open a chat window?

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/39

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On 2011-02-01T03:32:45+00:00 Farley13 wrote:

Chat window open is about the same as no chat window in Firefox. However
chat window minimized look like ~100 ms more.

For whatever reason my Safari performance has tanked though and isn't so
useful - it's 2700 ms now without a chat window and 3000 ms with one
open. Wish I could tell you why it tanked.. (reset just about
everything, restarted and shutdown as well). I'll pipe up again if
things look any different.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/40

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On 2011-02-14T11:31:15+00:00 coldReactive wrote:

Chat Window, Pop-out chat window, Google Voice window, etc. They all
don't slow down scrolling in GMail for me on Beta 11.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/41

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On 2011-08-15T22:23:03+00:00 Rjesup wrote:

Reading over this, I wonder if the jerkiness might be sessionstore.js
saving a whole bunch of data (JSON encoding it, then saving to disk).  A
simple search on google can leave the tab with 200-800K of sessionstore
data to save every time.  Even without that, it will tend to interrupt
you every few seconds.

See bug 669034 and related

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/44

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On 2011-09-01T10:00:15+00:00 Noisyblocks wrote:

With absolutely no evidence to support this, I'm convinced that this
issue could be related to <a
href="https://bugzilla.mozilla.org/show_bug.cgi?id=680090";>680090</a>...at
least for certain users.

Since having upgraded to version 6 I've experienced a significant
performance slowdown and hangs/freeze (spinning beach ball) sometimes
every 2-3 minutes on certain websites. These sites are almost always
javascript-intensive ones or sites that rely on lots of nested content
(ie: iframes).

I notice this poor behavior particularly when I have many tabs open
(FYI: Google maps slows to a crawl--it never used to). Is Google maps
possibly something to be looking at to identify this problem? As it
stands I'm having to consider reverting to 5.x...it gets so bad.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/45

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On 2011-09-01T11:34:03+00:00 coldReactive wrote:

(In reply to Emlyn from comment #43)
> With absolutely no evidence to support this, I'm convinced that this issue
> could be related to <a
> href="https://bugzilla.mozilla.org/show_bug.cgi?id=680090";>680090</a>...at
> least for certain users.

Since the problem has been happening since before 5.x (for me) I don't
think so.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/46

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On 2011-10-01T06:13:26+00:00 kmaglione wrote:

*** Bug 280917 has been marked as a duplicate of this bug. ***

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/47

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On 2011-11-15T18:03:08+00:00 Miahzmiahz+bmo wrote:

Scrolling in Gmail has never been super fast for me. But i could live
with it. The "Old Look" with the new Preview theme scrolled my inbox at
about 5000ms. With the Classic theme it scrolls about 7000ms (higher
info density). CPU spikes to near 100% either way.

Currently on Firefox 8 (beta6)
MacBookPro3,1 - 2.2 GHz Core 2 Duo - GeForce 8600M GT 128MB

But now with Gmail's "New Look" they are rolling out
[http://gmailblog.blogspot.com/2011/11/gmails-new-look.html], everything
in Gmail seems to be slower, including scrolling. But unfortunately, the
bookmarklet to test scroll speeds from Comment #12 no longer works
because they changed the arrangement of frames.

Not sure if various Gmail themes or the New Look affect how this bug is
approached.

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/49

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On 2011-11-15T22:54:50+00:00 Roc-ocallahan wrote:

Try the bookmarklet in
https://bugzilla.mozilla.org/show_bug.cgi?id=681867#c5

Reply at: https://bugs.launchpad.net/firefox/+bug/788102/comments/50


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

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

** Bug watch added: Mozilla Bugzilla #680090
   https://bugzilla.mozilla.org/show_bug.cgi?id=680090

** Bug watch added: Mozilla Bugzilla #681867
   https://bugzilla.mozilla.org/show_bug.cgi?id=681867

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/788102

Title:
  Firefox crashes or hangs on GMail

Status in The Mozilla Firefox Browser:
  Confirmed
Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: firefox

  After update to 4.0.1 (from 4.0.0) I'm experiencing the following trouble:
  - when CLOSING GMail tab it closes but Firefox hangs.

  Under GDB I managed to crash Firefox on OPENING GMail tab with the following tb:
  ...
  [New Thread 0x7fff9a0f8700 (LWP 10571)]
  [New Thread 0x7fff968ff700 (LWP 10573)]
  [New Thread 0x7fff960fe700 (LWP 10574)]
  [New Thread 0x7fff958fd700 (LWP 10575)]
  [Thread 0x7fff968ff700 (LWP 10573) exited]
  [Thread 0x7fff958fd700 (LWP 10575) exited]
  [Thread 0x7fffc92fd700 (LWP 10377) exited]
  [Thread 0x7fffd48ff700 (LWP 10382) exited]
  [Thread 0x7fffc82fb700 (LWP 10519) exited]
  [Thread 0x7fff9a0f8700 (LWP 10571) exited]
  [Thread 0x7fff960fe700 (LWP 10574) exited]
  [Thread 0x7fffc72f9700 (LWP 10392) exited]
  [New Thread 0x7fffc72f9700 (LWP 10729)]
  [New Thread 0x7fff960fe700 (LWP 10735)]

  Program received signal SIGPIPE, Broken pipe.
  [Switching to Thread 0x7fffe46ff700 (LWP 9960)]
  0x00007ffff7bc025c in send () from /lib/x86_64-linux-gnu/libpthread.so.0
  (gdb) back
  #0  0x00007ffff7bc025c in send () from /lib/x86_64-linux-gnu/libpthread.so.0
  #1  0x00007ffff50e522d in pt_Send (fd=0x7fff991c5c70, buf=0x7fff97174000, amount=27, flags=0, timeout=4294967295) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/nsprpub/pr/src/pthreads/ptio.c:1931
  #2  0x00007ffff0da6166 in ssl_DefSend () from /usr/lib/firefox-4.0.1/libssl3.so
  #3  0x00007ffff0d999fe in ssl3_SendRecord () from /usr/lib/firefox-4.0.1/libssl3.so
  #4  0x00007ffff0d9c023 in SSL3_SendAlert () from /usr/lib/firefox-4.0.1/libssl3.so
  #5  0x00007ffff0da9f0e in ssl_SecureClose () from /usr/lib/firefox-4.0.1/libssl3.so
  #6  0x00007ffff6892175 in nsNSSSocketInfo::CloseSocketAndDestroy (this=0x7fff9e2a9700) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/security/manager/ssl/src/nsNSSIOLayer.cpp:1831
  #7  0x00007ffff6886228 in nsSSLThread::requestClose (si=0x7fff9e2a9700) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/security/manager/ssl/src/nsSSLThread.cpp:437
  #8  0x00007ffff689150c in nsSSLIOLayerClose (fd=0x7fffd00f7b50) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/security/manager/ssl/src/nsNSSIOLayer.cpp:1820
  #9  0x00007ffff615e688 in nsSocketTransport::ReleaseFD_Locked (this=0x7fff97b83820, fd=<value optimized out>) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/netwerk/base/src/nsSocketTransport2.cpp:1395
  #10 0x00007ffff61603ee in nsSocketTransport::OnSocketDetached (this=0x7fff97b83820, fd=<value optimized out>) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/netwerk/base/src/nsSocketTransport2.cpp:1626
  #11 0x00007ffff6161437 in nsSocketTransportService::DetachSocket (this=0x7fffe485e000, sock=0x7fffe485e0a0) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/netwerk/base/src/nsSocketTransportService2.cpp:188
  #12 0x00007ffff61617ea in nsSocketTransportService::DoPollIteration (this=0x7fffe485e000, wait=<value optimized out>) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/netwerk/base/src/nsSocketTransportService2.cpp:710
  #13 0x00007ffff61618cb in nsSocketTransportService::OnProcessNextEvent (this=0x7fffe485e000, thread=0x7fffea5fee20, mayWait=1, depth=<value optimized out>)
      at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/netwerk/base/src/nsSocketTransportService2.cpp:552
  #14 0x00007ffff6b19ed9 in nsThread::ProcessNextEvent (this=0x7fffea5fee20, mayWait=1, result=0x7fffe46feaac) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/xpcom/threads/nsThread.cpp:597
  #15 0x00007ffff6ae9ab8 in NS_ProcessNextEvent_P (thread=<value optimized out>, mayWait=<value optimized out>) at nsThreadUtils.cpp:250
  #16 0x00007ffff6161c8c in nsSocketTransportService::Run (this=0x7fffe485e000) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/netwerk/base/src/nsSocketTransportService2.cpp:594
  #17 0x00007ffff6b19fde in nsThread::ProcessNextEvent (this=0x7fffea5fee20, mayWait=1, result=0x7fffe46feb9c) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/xpcom/threads/nsThread.cpp:633
  #18 0x00007ffff6ae9ab8 in NS_ProcessNextEvent_P (thread=<value optimized out>, mayWait=<value optimized out>) at nsThreadUtils.cpp:250
  #19 0x00007ffff6b19be3 in nsThread::ThreadFunc (arg=0x7fffea5fee20) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/xpcom/threads/nsThread.cpp:278
  #20 0x00007ffff50e8553 in _pt_root (arg=0x7fffec710bf0) at /build/buildd/firefox-4.0.1+build1+nobinonly/build-tree/mozilla/nsprpub/pr/src/pthreads/ptthread.c:187
  #21 0x00007ffff7bb7d8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
  #22 0x00007ffff156304d in clone () from /lib/x86_64-linux-gnu/libc.so.6
  #23 0x0000000000000000 in ?? ()

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.2
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Wed May 25 16:48:00 2011
  FirefoxPackages:
   firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.2
   flashplugin-installer N/A
   adobe-flashplugin N/A
   icedtea-plugin N/A
  InstallationMedia: Xubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101008.1)
  ProcEnviron:
   LANGUAGE=ru_RU:en
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  SourcePackage: firefox
  UpgradeStatus: Upgraded to natty on 2011-04-11 (43 days ago)

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