[gentoo-user] vBulletin site causes Konqueror to hang

[gentoo-user] vBulletin site causes Konqueror to hang

[Alan McKinnon]

Hi,

There's a vBulletin forum I frequent:

http://forum.thinkbike.co.za

and my usual browser is Konqueror (just because kparts makes it so 
convenient). Every so often, with no pattern I can find, this site hangs 
Konqueror - cpu goes to 100% and the browser stays unresponsive.

I've tried various tricks to see what is going on when it does this, including 
strace, to no avail. I have a hunch this started when I installed konq-
plugins, I have these enabled:

Adblock
bookmarklets
Crashes Monitor
KTHML settings
Konqueror feed icon 
Search bar
translate 
User Agent Changer
Web Archiver

My next step is to start the laborious process of disabling them one by one to 
see if it makes a difference. Meanwhile, does anyone have suggestions for 
clever trouble-shooting techniques to apply here?

I doubt anyone will have a solution to hand, just some pointers to likely 
things to check is all I'm after at this stage.


-- 
alan dot mckinnon at gmail dot com

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Volker Armin Hemmann]

On Dienstag 02 März 2010, Alan McKinnon wrote:
> Hi,
> 
> There's a vBulletin forum I frequent:
> 
> http://forum.thinkbike.co.za
> 
> and my usual browser is Konqueror (just because kparts makes it so
> convenient). Every so often, with no pattern I can find, this site hangs
> Konqueror - cpu goes to 100% and the browser stays unresponsive.
> 
> I've tried various tricks to see what is going on when it does this,
> including strace, to no avail. I have a hunch this started when I
> installed konq- plugins, I have these enabled:
> 
> Adblock
> bookmarklets
> Crashes Monitor
> KTHML settings
> Konqueror feed icon
> Search bar
> translate
> User Agent Changer
> Web Archiver
> 
> My next step is to start the laborious process of disabling them one by one
> to see if it makes a difference. Meanwhile, does anyone have suggestions
> for clever trouble-shooting techniques to apply here?
> 
> I doubt anyone will have a solution to hand, just some pointers to likely
> things to check is all I'm after at this stage.

without looking at that site - is there any flash stuff? What about javascript?
nspluginviewer is still a bitch - and buggy js can cause a tremendous amount 
of cpu load.

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Dale]

chrome://messenger/locale/messengercompose/composeMsgs.properties:
> On Dienstag 02 März 2010, Alan McKinnon wrote:
>    
>> Hi,
>>
>> There's a vBulletin forum I frequent:
>>
>> http://forum.thinkbike.co.za
>>
>> and my usual browser is Konqueror (just because kparts makes it so
>> convenient). Every so often, with no pattern I can find, this site hangs
>> Konqueror - cpu goes to 100% and the browser stays unresponsive.
>>
>> I've tried various tricks to see what is going on when it does this,
>> including strace, to no avail. I have a hunch this started when I
>> installed konq- plugins, I have these enabled:
>>
>> Adblock
>> bookmarklets
>> Crashes Monitor
>> KTHML settings
>> Konqueror feed icon
>> Search bar
>> translate
>> User Agent Changer
>> Web Archiver
>>
>> My next step is to start the laborious process of disabling them one by one
>> to see if it makes a difference. Meanwhile, does anyone have suggestions
>> for clever trouble-shooting techniques to apply here?
>>
>> I doubt anyone will have a solution to hand, just some pointers to likely
>> things to check is all I'm after at this stage.
>>      
> without looking at that site - is there any flash stuff? What about javascript?
> nspluginviewer is still a bitch - and buggy js can cause a tremendous amount
> of cpu load.
>
>
>    

Not knowing the site either, my weather radar site locks up when loading 
the radar.  It does this on Seamonkey, Firefox and a couple others BUT 
Konqueror doesn't lock up at all.  It doesn't animate any more tho but 
it used to work fine.  I think KDE 4 as a issue or I have a setting 
wrong somewhere  I do know the weather site uses java so most likely 
java is causing the "issue".  It to uses a lot of CPU when loading.

So, it may be java or it could be something else.  I went to the site 
you linked, it seemed to work fine with Seamonkey 2.  It also worked in 
Firefox and Konqueror.  Is there a specific thing that you go to or just 
the site in general?  I wasn't logged in, just browsing as a guest.

Dale

:-)  :-)

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Alan McKinnon]

On Tuesday 02 March 2010 23:53:29 Dale wrote:
> > without looking at that site - is there any flash stuff? What about
> > javascript? nspluginviewer is still a bitch - and buggy js can cause a
> > tremendous amount of cpu load.
> >
> >    
> 
> Not knowing the site either, my weather radar site locks up when loading 
> the radar.  It does this on Seamonkey, Firefox and a couple others BUT 
> Konqueror doesn't lock up at all.  It doesn't animate any more tho but 
> it used to work fine.  I think KDE 4 as a issue or I have a setting 
> wrong somewhere  I do know the weather site uses java so most likely 
> java is causing the "issue".  It to uses a lot of CPU when loading.
> 
> So, it may be java or it could be something else.  I went to the site 
> you linked, it seemed to work fine with Seamonkey 2.  It also worked in 
> Firefox and Konqueror.  Is there a specific thing that you go to or just 
> the site in general?  I wasn't logged in, just browsing as a guest.

No java at all. I did forget to mention the two things that provoke it, there 
always one of them immediately before a crash:

click on a link or go to next page
click "post reply" after composing a response

-- 
alan dot mckinnon at gmail dot com

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Dale]

chrome://messenger/locale/messengercompose/composeMsgs.properties:
> On Tuesday 02 March 2010 23:53:29 Dale wrote:
>    
>>> without looking at that site - is there any flash stuff? What about
>>> javascript? nspluginviewer is still a bitch - and buggy js can cause a
>>> tremendous amount of cpu load.
>>>
>>>
>>>        
>> Not knowing the site either, my weather radar site locks up when loading
>> the radar.  It does this on Seamonkey, Firefox and a couple others BUT
>> Konqueror doesn't lock up at all.  It doesn't animate any more tho but
>> it used to work fine.  I think KDE 4 as a issue or I have a setting
>> wrong somewhere  I do know the weather site uses java so most likely
>> java is causing the "issue".  It to uses a lot of CPU when loading.
>>
>> So, it may be java or it could be something else.  I went to the site
>> you linked, it seemed to work fine with Seamonkey 2.  It also worked in
>> Firefox and Konqueror.  Is there a specific thing that you go to or just
>> the site in general?  I wasn't logged in, just browsing as a guest.
>>      
> No java at all. I did forget to mention the two things that provoke it, there
> always one of them immediately before a crash:
>
> click on a link or go to next page
> click "post reply" after composing a response
>
>    

I did click around on the site earlier but I'm not registered to do 
anything else.  I just went back and tried to navigate a bit more.  I 
went to a thread then clicked to go back to the main page.  Dicks hat 
band could not have done it better.  That thing locked up like a whore 
on the front row.  lol  It was a 53% loading and trying to get something 
that is 18.9Kib.  It's been a couple minutes now and it is still sitting 
there.  I'm thinking that only a kill -9 will make this "whore" move 
again.  Please excuse my humor.

So, whatever it is, it affects us both.  This is what I have:

root@smoker ~ # eselect java-vm list
Available Java Virtual Machines:
   [1]   sun-jdk-1.5  system-vm
   [2]   sun-jdk-1.6

!!! Warning: VMs marked as Build Only may contain Security 
Vulnerabilities and/or be EOL.
!!! Warning: Gentoo recommends not setting these VMs as either your 
System or User VM.
!!! Warning: Please see http://www.gentoo.org/doc/en/java.xml#build-only 
for more information.
root@smoker ~ # eselect java-nsplugin list
Available Java browser plugins
   [1]   sun-jdk-1.5
   [2]   sun-jdk-1.6  current
   [3]   sun-jdk-1.6-plugin2
root@smoker ~ #


Pardon the error message.  Got to check into that I guess.  Might be why 
my weather site ain't working right.

Dale

:-)  :-)

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Alan McKinnon]

On Wednesday 03 March 2010 03:54:06 Dale wrote:
> I did click around on the site earlier but I'm not registered to do 
> anything else.  I just went back and tried to navigate a bit more.  I 
> went to a thread then clicked to go back to the main page.  Dicks hat 
> band could not have done it better.  That thing locked up like a whore 
> on the front row.  lol  It was a 53% loading and trying to get something 
> that is 18.9Kib.  It's been a couple minutes now and it is still sitting 
> there.  I'm thinking that only a kill -9 will make this "whore" move 
> again.  Please excuse my humor.
> 
> So, whatever it is, it affects us both.


I fear the worst :-)

I see KDE-4.4.1 just showed up in the tree and the Changelog has some 
interesting javascript-related bugs fixed. So what I'm gonna do is rebuild 
this latest KDE and see if that makes a difference. If not, disable $STUFF one 
at a time. If that doesn't work, I shall have to change a 6 year browsing 
habit :-(




-- 
alan dot mckinnon at gmail dot com

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Dale]

chrome://messenger/locale/messengercompose/composeMsgs.properties:
> On Wednesday 03 March 2010 03:54:06 Dale wrote:
>    
>> I did click around on the site earlier but I'm not registered to do
>> anything else.  I just went back and tried to navigate a bit more.  I
>> went to a thread then clicked to go back to the main page.  Dicks hat
>> band could not have done it better.  That thing locked up like a whore
>> on the front row.  lol  It was a 53% loading and trying to get something
>> that is 18.9Kib.  It's been a couple minutes now and it is still sitting
>> there.  I'm thinking that only a kill -9 will make this "whore" move
>> again.  Please excuse my humor.
>>
>> So, whatever it is, it affects us both.
>>      
>
> I fear the worst :-)
>
> I see KDE-4.4.1 just showed up in the tree and the Changelog has some
> interesting javascript-related bugs fixed. So what I'm gonna do is rebuild
> this latest KDE and see if that makes a difference. If not, disable $STUFF one
> at a time. If that doesn't work, I shall have to change a 6 year browsing
> habit :-(
>
>    

It may be safe to fear the worst.  I updated mine last night so I 
thought I would try it again with the updates.  Last time it locked up 
at about 53%.  Well they did improve it a little bit at least.  It now 
hangs at 66%.  So we have a 13% improvement.

Hey, maybe with the next updates it will work all the way to a page 
load.  Also, if you file a bug report somewhere, I got to the site, 
click on a thread then try to go back to the home page by clicking on 
the link in the top box.  So far, it has not been able to get past that 
point.  Oh, my CPU is at 100% doing whatever it is doing.

Now to go do a kill on Konqueror.

Dale

:-)  :-)

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Paul Hartman]

On Wed, Mar 3, 2010 at 2:38 PM, Dale <rdalek1967@gmail.com> wrote:
>  Also, if you file a bug report somewhere, I got to the site, click on a
> thread then try to go back to the home page by clicking on the link in the
> top box.  So far, it has not been able to get past that point.  Oh, my CPU
> is at 100% doing whatever it is doing.

FWIW I just tried it in Konqueror 4.4.0 on Windows XP (work computer)
and, while it didn't use any noticeable CPU, Konqueror did get stuck
on a blank page spawning dozens and dozens of kwalletd and kioslave
processes for about 2 or 3 minutes, and then suddenly the page
displayed and everything settled down, back to normal. It seems random
but has happened every couple pages while clicking around in the site.
Weird.

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Mick]

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On Wednesday 03 March 2010 22:02:06 Paul Hartman wrote:
> On Wed, Mar 3, 2010 at 2:38 PM, Dale <rdalek1967@gmail.com> wrote:
> >  Also, if you file a bug report somewhere, I got to the site, click on a
> > thread then try to go back to the home page by clicking on the link in
> > the top box.  So far, it has not been able to get past that point.  Oh,
> > my CPU is at 100% doing whatever it is doing.
> 
> FWIW I just tried it in Konqueror 4.4.0 on Windows XP (work computer)
> and, while it didn't use any noticeable CPU, Konqueror did get stuck
> on a blank page spawning dozens and dozens of kwalletd and kioslave
> processes for about 2 or 3 minutes, and then suddenly the page
> displayed and everything settled down, back to normal. It seems random
> but has happened every couple pages while clicking around in the site.
> Weird.

Well, I'm using Konqueror 4.3.5 and tried to navigate around the forums and 
click on the top link to go to the home page like Dale did.  I tried this a 
few times on a PIII laptop, which is of course slow, but it did not get stuck.  
So, I guess it works here ...
-- 
Regards,
Mick

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Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Alan McKinnon]

On Tuesday 02 March 2010 23:29:19 Volker Armin Hemmann wrote:
> On Dienstag 02 März 2010, Alan McKinnon wrote:
> > Hi,
> > 
> > There's a vBulletin forum I frequent:
> > 
> > http://forum.thinkbike.co.za
> > 
> > and my usual browser is Konqueror (just because kparts makes it so
> > convenient). Every so often, with no pattern I can find, this site hangs
> > Konqueror - cpu goes to 100% and the browser stays unresponsive.
> > 
> > I've tried various tricks to see what is going on when it does this,
> > including strace, to no avail. I have a hunch this started when I
> > installed konq- plugins, I have these enabled:
> > 
> > Adblock
> > bookmarklets
> > Crashes Monitor
> > KTHML settings
> > Konqueror feed icon
> > Search bar
> > translate
> > User Agent Changer
> > Web Archiver
> > 
> > My next step is to start the laborious process of disabling them one by
> > one to see if it makes a difference. Meanwhile, does anyone have
> > suggestions for clever trouble-shooting techniques to apply here?
> > 
> > I doubt anyone will have a solution to hand, just some pointers to likely
> > things to check is all I'm after at this stage.
> 
> without looking at that site - is there any flash stuff? What about
> javascript? nspluginviewer is still a bitch - and buggy js can cause a
> tremendous amount of cpu load.

No flash, but there is a usual amount of animated gifs and javascript. Nothing 
over the top, just normal stuff for a forum. And this is the only forum of 
many where this happens.

I've disabled js for the domain, I'll run it for a few days and see what 
happens. I fear konqueror may go the way of amarok, and be replaced by rekong.

-- 
alan dot mckinnon at gmail dot com

Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Mick]

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On Tuesday 02 March 2010 20:37:15 Alan McKinnon wrote:
> Hi,
> 
> There's a vBulletin forum I frequent:
> 
> http://forum.thinkbike.co.za
> 
> and my usual browser is Konqueror (just because kparts makes it so
> convenient). Every so often, with no pattern I can find, this site hangs
> Konqueror - cpu goes to 100% and the browser stays unresponsive.
> 
> I've tried various tricks to see what is going on when it does this,
>  including strace, to no avail. I have a hunch this started when I
>  installed konq- plugins, I have these enabled:
> 
> Adblock
> bookmarklets
> Crashes Monitor
> KTHML settings
> Konqueror feed icon
> Search bar
> translate
> User Agent Changer
> Web Archiver
> 
> My next step is to start the laborious process of disabling them one by one
>  to see if it makes a difference. Meanwhile, does anyone have suggestions
>  for clever trouble-shooting techniques to apply here?
> 
> I doubt anyone will have a solution to hand, just some pointers to likely
> things to check is all I'm after at this stage.

Some of the animated gifs can start eating up resources.  Over-elaborate 
avatars can also have the same effect and when people start using both gifs 
and flash animations the there may be a combination that causes the problems 
you describe.  Anyway, just an idea.  Try it with an old machine and see if 
the symptoms get worse/sooner.

-- 
Regards,
Mick

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Re: [gentoo-user] vBulletin site causes Konqueror to hang

[Alan McKinnon]

On Wednesday 03 March 2010 00:48:36 Mick wrote:
> On Tuesday 02 March 2010 20:37:15 Alan McKinnon wrote:
> > Hi,
> > 
> > There's a vBulletin forum I frequent:
> > 
> > http://forum.thinkbike.co.za
> > 
> > and my usual browser is Konqueror (just because kparts makes it so
> > convenient). Every so often, with no pattern I can find, this site hangs
> > Konqueror - cpu goes to 100% and the browser stays unresponsive.
> > 
> > I've tried various tricks to see what is going on when it does this,
> > 
> >  including strace, to no avail. I have a hunch this started when I
> > 
> >  installed konq- plugins, I have these enabled:
> > Adblock
> > bookmarklets
> > Crashes Monitor
> > KTHML settings
> > Konqueror feed icon
> > Search bar
> > translate
> > User Agent Changer
> > Web Archiver
> > 
> > My next step is to start the laborious process of disabling them one by
> > one
> > 
> >  to see if it makes a difference. Meanwhile, does anyone have suggestions
> >  for clever trouble-shooting techniques to apply here?
> > 
> > I doubt anyone will have a solution to hand, just some pointers to likely
> > things to check is all I'm after at this stage.
> 
> Some of the animated gifs can start eating up resources.  Over-elaborate
> avatars can also have the same effect and when people start using both gifs
> and flash animations the there may be a combination that causes the
> problems you describe.  Anyway, just an idea.  Try it with an old machine
> and see if the symptoms get worse/sooner.

That's worth persuing. I thought of two things that triggers the crash, it's 
just not predictable:

1. Edit a reply and click "Post reply"
2. Click on the next page.

It's always one of those two things just before a freeze, which seems 
significant.

-- 
alan dot mckinnon at gmail dot com