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Issue 849281 link

Starred by 5 users

Issue metadata

Status: Assigned
Owner:
Cc:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 3
Type: Bug



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Contents of tabs not responsive after unlocking machine.

Project Member Reported by erikc...@chromium.org, Jun 4 2018

Issue description

comment from asvitkine:
"""
Symptoms are that I can interact with UI and open tabs, but nothing in content area updates (new tabs don't load, etc).
"""

see: https://bugs.chromium.org/p/chromium/issues/detail?id=808031#c113, which also has a CPU sample.
 
Owner: erikc...@chromium.org
Status: Assigned (was: Asss)
Cc: asvitk...@chromium.org
Here's another sample. Content unresponsive for a few minutes. 300% browser cpu use.
sample_new2.txt
1.7 MB View Download
Cc: morlovich@chromium.org xunji...@chromium.org
Thank you! Same symptoms as the last set - all I'm seeing is network and extension related code.

+ xunjieli, morlovich - any insight into what's going on?
Do you mean TabSpecificContentSettings::CookiesRead / CannedBrowsingDataCookieHelper::AddCookie, or am I reading it wrong? That's the thing that updates the list of cookies loaded in the page for the UI. 
(Click on the lock -> Cookies).

Doesn't really look like it does anything that expensive.

I guess checking if some tab has 500,000 cookies or something may be revealing, but that seems like an invitation to RSI for a typical tab count expected from a colleague.

asvitkine: Do you regularly click on the lock icon? I'm curious if there's another code path causing TabSpecificContentSettings::CookiesRead / CannedBrowsingDataCookieHelper::AddCookie to be called so much.
CookiesRead isn't referring to a human looking at cookies, its collecting information on computer looking at cookies so it can show to the human.

References:

https://cs.chromium.org/search/?q=TabSpecificContentSettings::CookiesRead&sq=package:chromium


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