URL:
<https://savannah.gnu.org/bugs/?56390>
Summary: Fetches (e.g. HTTP) fail from dual-stacked hosts
Project: GNU GRUB
Submitted by: paravoid
Submitted on: Sun 26 May 2019 02:02:36 AM UTC
Category: Network
Severity: Major
Priority: 5 - Normal
Item Group: Software Error
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release:
Release: Git master
Reproducibility: Every Time
Planned Release: None
_______________________________________________________
Details:
Assuming:
- GRUB has an IPv4 or IPv6 address (but not both)
- We want to fetch something from example.org (e.g. (http,example.org)/linux)
- example.org is dual-stacked, i.e. has both A and AAAA DNS records
One every N fetches will fail, at random.
Easily reproducible using nslookup, where it returns either the A or the AAAA,
basically at random:
grub> net_nslookup example.org
93.184.216.34
grub> net_nslookup example.org
93.184.216.34
grub> net_nslookup example.org
2606:2800:220:1:248:1893:25c8:1946
grub> net_nslookup example.org
93.184.216.34
grub> net_nslookup example.org
2606:2800:220:1:248:1893:25c8:1946
grub> net_nslookup example.org
93.184.216.34
_______________________________________________________
Reply to this item at:
<https://savannah.gnu.org/bugs/?56390>
_______________________________________________
Message sent via Savannah
https://savannah.gnu.org/
_______________________________________________
Bug-grub mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/bug-grub
