AdBlock Plus 1.8 momentarily and regularly freezes Chrome

[selulven]

Environment

Windows 7 Pro 64 bit
Chrome 34.0.1847.131 m
ABP 1.8.1

Filters:

*.samsung.se/adserver/*
*jobbdirekte*
*srvkrswcf01*
@@llnwd.net/*.css|
@@|http://crev.vo.llnwd.net/o42/rbrforums/styles/forums-style.css
@@|http://www.facebook.com/pages/Team-Jens/206636999380364?$document
@@|http://www.facebook.com/thequikdraw/posts/514859538573964|$document
@@||pji.nu/css^
@@||pji.nu/js^
@@||tadst.com^
cache.finn.no/clientscript/finn/bap/moreLikeThis.js|
||addthis.com^
||adexprt.com^
||adform.net^
||ads.revsci.net^
||ads.terrengsykkel.no^
||ads^
||adtech.de^
||adviva.net^
||affiliatelounge.com^
||annonser.dagbladet.no^
||atdmt.com^
||atemda.com^
||bannerflow.com^
||burt.io^
||cdn.streameye.net/upload/*
||cdn4.emediate.eu^
||chartbeat.com^
||chartbeat.net^
||clicktale.net^
||clkads.com^
||criteo.net^
||dn.no/www.dn.no/include/swf/*
||doubleclick.net^
||edgecastcdn.net^
||essens.no^
||facebook.com^
||facebook.net^
||finncdn.no/trafikk/*
||flash.vg.no^
||fusion.nettavisen.no^
||google-analytics.com^
||googlesyndication.com^
||googletagservices.com^
||helios.finn.no^
||letsdealno-apiimages.s3.amazonaws.com^
||llnwd.net^
||lp4.io^
||mediadakine.com^
||mediaplex.com^
||mixpanel.com^
||multimedia.aftenbladet.no/marked/*
||optimizely.com^
||pji.nu^
||plusone.google.com^
||revsci.net^
||richmetrics.com^
||sascdn.com^
||sasecondary.medianorge.no^
||scorecardresearch.com^
||serving-sys.com^
||specificclick.net^
||srvkrswcf01^
||statcamp.net^
||tadst.com^
||tns-cs.net^
||trafikkfondet.no^
||tribalfusion.com^
||vindicosuite.com^
||webhit.snd.no^
||www.terrengsykkel.no###ad*
||xiti.com^
||yieldmanager.com^

How to reproduce

Enable AdBlock Plus
Notice how at regular intervals (~once per minute), Chrome will freeze completely for a number of seconds (~10)
Disable AdBlock Plus
Notice how freezing went away

Observed behaviour

Chrome becomes completely unresponsive (no graphical updates, does not respond to window events).
Sound from videos keeps playing even if the image has stopped.

Expected behaviour

Chrome remains completely responsive.

[mapx]

what filters are those ? custom filters ?
and ...

@@@@@@

is a filter ?

where does it happen ? all the sites ? if no, provide the page / link

Are some filter lists enabled ? (easylist for example)

What if you use only easylist ? (removing your custom filters)

[selulven]

AdBlock filters

[selulven]

The filters are mangled by trac -- they don't look like that in AdBlock. I've attached a file with the filters instead.

It happens on all sites.
There are no filter lists enabled.

I'll try EasyList and see what happens.

[selulven]

Happens with EasyList as well.

[mapx]

only with easylist ? did you remove your custom filters ?

[mapx]

even using only your filters I can not reproduce the "issue".

Could be some conflict with other extension, or a conflict with your security software

[selulven]

Happens with only EasyList -- I removed my custom filters completely.

The "issue", as you so aptly phrased it, started about a week ago, and I haven't changed my filters for months. The only apparent change from about a week ago was a new AdBlock Plus.

[mapx]

you could try to "install" a chrome portable (try the beta 35 for example)
​http://portableapps.com/apps/internet/google_chrome_portable

and re-test

or create a new profile in your chrome
​https://support.google.com/chrome/answer/142059?hl=en

[selulven]

It also appears it's not just me:

​https://adblockplus.org/releases/adblock-plus-18-for-chrome-opera-and-safari-released#c005337

[philll]

How is your RAM usage? Still left an appropriate amount when ABP is running?

[mapx]

if you remove

www.terrengsykkel.no###ad*

does the freezing still happen ?

[selulven]

The freezing stopped after I removed that filter. I've added the filter again to see if the freezing re-appears. I'll keep you posted.

Regarding RAM usage, there is no amount of memory consumed by any application on my machine I would deem "appropriate". Chrome uses several gigabytes in my regular browsing session.

[joelg]

I'm also having this problem, on multiple systems - 2 Windows 7 x64 (latest Chrome Canary), and one Fedora 20 (latest Chrome stable).

During browsing tabs will just spin and not open pages. If I disable Adblock, the pages finish opening immediately. I've also gotten errors that Adblock has crashed (only on the Fedora box).

Joel

[mapx]

Replying to joelg:

I'm also having this problem, on multiple systems - 2 Windows 7 x64 (latest Chrome Canary), and one Fedora 20 (latest Chrome stable).

During browsing tabs will just spin and not open pages. If I disable Adblock, the pages finish opening immediately. I've also gotten errors that Adblock has crashed (only on the Fedora box).

Joel

open your own issue with all the details (abp version, filter lists, example links, chrome version, steps to reproduce the issue)

if you are using custom filters try removing all of them and re-test

[mapx]

as for the original issue, removing that filter the freezing is gone

[selulven]

I'm still testing to see if removing/adding the filter affects the freezing behaviour.

Also, why close the ticket if that particular filter is the issue? Is it an illegal filter specification?

[mapx]

yes, it's illegal format
see
​https://adblockplus.org/en/filters#elemhide_attributes

[mapx]

you could try

terrengsykkel.no##div[id*="ad"]

[selulven]

After the freezing became too annoying to have ABP enabled, I installed FlashBlock to least get rid some of the more annoying animated ads.

The freezing does not re-occur if I have enabled FlashBlock. I.e. when no flash files are loaded, even with the filter above in place, the freezing does not happen.

When I disable FlashBlock, the freezing starts happening again.

I.e. it seems when flash files are loaded AND the above filter is in place, the freezing happens. Otherwise not.

[mapx]

Did you try the filter I wrote above ? or the wrong one ?

[selulven]

Sorry about the ambiguity. When I said "the above filter", I was referring to the incorrect one that we suspect causes the freezing, not your suggested new filter.

[mapx]

well, I don't understand why are you testing that one, remove it, it's wrong ! end of the story

[selulven]

Because I'm curious.

The wrong filter does not cause freezing when Flash is blocked. Doesn't that make you wonder why the behaviour is different? Could there be a bug somewhere after all, related to Flash, even if the filter is also wrong? It's your decision to act on it or not.

Thank you for identifying the incorrect syntax, though. I can't remember if it was produced by the Firefox version of ABP or some extension to it, or if I wrote it myself off of a template I found.

I'll give your modified version a try and see if it does what I intended for the incorrect one to do.

[sebastian]

If an invalid CSS selector makes Chrome crash, this is a bug in Chrome. But we should prevent users from adding invalid filters. However there is already #491 for adding validation for custom filters.