This bug was fixed in the package systemd - 239-7ubuntu15
---------------
systemd (239-7ubuntu15) disco; urgency=medium
* core: set /run size to 10%, like initramfs-tools does.
Currently there is a difference between initrd and initrd-less boots,
w.r.t. size= mount option of /run. This yields different runtime journald
caps
(1% vs 10%), and on dense deployments of containers may result in OOM kills.
(LP: #1799251)
File:
debian/patches/debian/UBUNTU-core-set-run-size-to-10-like-initramfs-tools-does.patch
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=1fac2568fe716dc1a41bada78293dc6327a6df0d
* resolved: Increase size of TCP stub replies.
DNS_PACKET_PAYLOAD_SIZE_MAX is limiting the size of the stub replies to
512 with EDNS off or 4096 with EDNS on, without checking the protocol
used. This makes TCP replies for clients without EDNS support to be
limited to 512, making the truncate flag useless if the query result is
bigger than 512 bytes.
This commit increases the size of TCP replies to DNS_PACKET_SIZE_MAX
Fixes: #10816
(cherry picked from commit e6eed9445956cfa496e1db933bfd3530db23bfce)
(LP: #1804487)
Author: Victor Tapia
File: debian/patches/resolved-Increase-size-of-TCP-stub-replies.patch
https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=702a4566174c4d2bd84b70805107cfc1a7c128cc
-- Dimitri John Ledkov <x...@ubuntu.com> Mon, 03 Dec 2018 13:49:24
+0000
** Changed in: systemd (Ubuntu Disco)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1804487
Title:
systemd-resolved has issues when the answer is over 512 bytes with
EDNS disabled
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