FS#53702 - [linux] IPv6 disabled via sysctl since ~4.10.9

Attached to Project: Arch Linux
Opened by Ralf Barth (Haggy) - Tuesday, 18 April 2017, 05:31 GMT
Last edited by Doug Newgard (Scimmia) - Wednesday, 19 April 2017, 14:29 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To No-one
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
Since roughly 4.10.9 IPv6 is disabled right after reboot. Confirmed by checking with sudo sysctl -a | grep disable_ipv6. If i re-enable via sysctl, the interfaces immediately get inet6 addresses assigned as they did with older kernels. Double checked that no leftover sysctl setting can be found on the system or kernel options disable ipv6. Related discussion with confirmation from another user: https://bbs.archlinux.org/viewtopic.php?pid=1705044

Additional info:
* package version(s)
4.10.9 and later

Note i'm running systemd-networkd, bootd and Docker, but this seems to be unrelated as IPv6 is not available during early boot.

* config and/or log files etc.
zgrep -i IPV6 /proc/config.gz: https://clbin.com/EoigX

Steps to reproduce:
Boot kernel 4.10.9+
This task depends upon

Closed by  Doug Newgard (Scimmia)
Wednesday, 19 April 2017, 14:29 GMT
Reason for closing:  Deferred
Additional comments about closing:   FS#53716 
Comment by Ralf Barth (Haggy) - Wednesday, 19 April 2017, 07:58 GMT
This seems not to be Kernel related as i downgraded to 4.10.8, 4.10.6 and 4.10.3. IPv6 remained disabled after reboot.

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