1890263 - Long delay before loading page

Status: RESOLVED DUPLICATE of bug 1891431

(Core :: Networking, defect)

Description

[Paul Menzel]

Attachment: long-loading.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0

Steps to reproduce:

Debian sid/unstable with firefox-nightly 126.0a1~20240407213050.

Access a Web site.

Actual results:

Since two(?) weeks randomly ten or more seconds pass by before the site starts loading.

Expected results:

The page should load instantly.

On the command line host <domain> returns instantly.

Looking in the developer tools, it says it’s in a blocking state.

After the Web page has loaded once, it works fine afterward. Unfortunately, it is not reproducible and only happens randomly.

Comment 1

[Paul Menzel]

Attachment: Output of `about:support`

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Valentin Gosu [:valentin] (he/him)]

Could you try capturing a profile?
https://firefox-source-docs.mozilla.org/networking/http/logging.html

When the issue happens, go to about:logging select the Networking preset, capture a profile, and upload it.
Send the link to [e-mail]

Thansk!

Comment 4

[Paul Menzel]

Attachment: Screenshot of `about:logging` with greyed out button

Unfortunately, the Start logging button is greyed out.

Comment 5

[Valentin Gosu [:valentin] (he/him)]

I(In reply to Paul Menzel from comment #4)

Created attachment 9395633 [details]
Screenshot of about:logging with greyed out button

Unfortunately, the Start logging button is greyed out.

It appears you're already logging.
How are you starting Firefox?
Do you have a MOZ_LOG environment variable?

Comment 6

[Paul Menzel]

(In reply to Valentin Gosu [:valentin] (he/him) from comment #5)

I(In reply to Paul Menzel from comment #4)

Created attachment 9395633 [details]
Screenshot of about:logging with greyed out button

Unfortunately, the Start logging button is greyed out.

It appears you're already logging.
How are you starting Firefox?
Do you have a MOZ_LOG environment variable?

Yes, I do: MOZ_LOG="PlatformDecoderModule:1,Dmabuf:1" firefox-nightly

Thank you. Then I am going to leave it out for debugging this issue. (Currently, I am unable to reproduce it.)

Comment 7

[Randell Jesup [:jesup] (needinfo me)]

Setting NeedInfo to the reporter; please comment here when you have logs/profile of this occurring. Thanks!

Comment 8

[Paul Menzel]

Bug 1891431 developed into the same issue, so closing as a duplicate.