1907982 - "Waiting for socket thread" takes 10 seconds for every new domain, only under mobile data with private DNS disabled.

Status: RESOLVED INCOMPLETE

(Core :: Networking, defect)

Description

[atahanacar]

Attachment: captures.zip

Firefox for Android

Steps to reproduce:

1. Use mobile data
2. Disable Private DNS from Android settings
3. Try to load any website on Firefox

Actual results:

Nothing loads for first 10 seconds. Profiling with the default preset shows "Waiting for socket thread" takes 10 seconds, while with the networking preset the bug can't be reproduced. It is also not present in the stock browser. Tcpdump for both browsers is attached.

Expected results:

Page should load normally, without extra unexpected delays.

Comment 1

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

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

Comment 2

[atahanacar]

Some additional information:

This bug is only happens when the preference network.dns.native_https_query is enabled, and the DNS server doesn't respond to requests of record type 65 (HTTPS).

Comment 3

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

The severity field is not set for this bug.
:kaya, could you have a look please?

For more information, please visit BugBot documentation.

Comment 4

[Andrew Creskey [:acreskey]]

Moving to Necko as this looks related to bug 1874464

Comment 5

[edgul]

Removing NI for re-triage. Can Necko reproduce?

Comment 6

[Kershaw Chang [:kershaw]]

This should be fixed by bug 1898191.
Reporter, could you test again? If this still happens, could you try to capture another profile?
Thanks.

Comment 7

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

A needinfo is requested from the reporter, however, the reporter is inactive on Bugzilla. Given that the bug is still UNCONFIRMED, closing the bug as incomplete.

For more information, please visit BugBot documentation.