#663899 resolver blocks, unable to open some websites or, sometimes, anything at all; high CPU load

Package:
iceweasel
Source:
firefox-esr
Submitter:
Andrew Shadura
Date:
2025-09-18 07:55:02 UTC
Severity:
normal
#663899#5
Date:
2012-03-14 21:05:23 UTC
From:
To:
Version: 11.0~a2+20120127042007-1
Severity: normal

First of all, I must note that I use dual-stack system. Mostly, when
I have IPv4-only connectivity, the bug doesn't show up that frequently.

The problem arises when for some reason (weak wireless signal, for
example), the resolver fails. After that, it seems like it blocks
somewhere and is unable to resolve any address at all. Every other
program works perfectly here.

Also, quite often this is accompanied by extremely high CPU load:

10289 andrew     20   0  789M  422M 35664 S 107% 13.9 36:31.78 /usr/lib/iceweasel/firefox-bin

Restarting Iceweasel usually helps.
#663899#10
Date:
2025-09-18 07:29:21 UTC
From:
To:
src:iceweasel has been superseded by src:firefox-esr in version
45.0esr-1 in March 2016. Transitional packages to ease upgrades were
provided in the wheezy, jessie, stretch and buster releases. The
transitional packages have been removed finally before the bullseye
release in August 2021.
After regular security support for buster ended in August 2022 and LTS
support ended in June 2024, I'm closing the remaining bug reports now.

Andreas