Bug#1130974: linux-image-rt-amd64: -rt kernel builds are missing xt_MASQUERADE module

Mariusz Gronczewski <[email protected]> Mon, 16 Mar 2026 17:20:09 +0100
Newsgroups gmane.linux.debian.ports.amd64
Message-ID <CAJ9Ak2qR825VApCK=GX9yr9_svbY44EbLOo5rFdn+cBx5nSXRQ__35230.5802445457$1773678208$gmane$org@mail.gmail.com>
Package: linux-image-rt-amd64
Version: 6.19.6-2
Severity: important
X-Debbugs-Cc: [email protected]
User: [email protected]
Usertags: amd64

-rt packages seem to be missing this module

/lib/modules/6.18.15+deb14-amd64/kernel/net/netfilter/nft_masq.ko.xz
/lib/modules/6.18.15+deb14-amd64/kernel/net/netfilter/xt_MASQUERADE.ko.xz
/lib/modules/6.18.15+deb14-rt-amd64/kernel/net/netfilter/nft_masq.ko.xz
/lib/modules/6.19.6+deb14+1-amd64/kernel/net/netfilter/nft_masq.ko.xz
/lib/modules/6.19.6+deb14+1-amd64/kernel/net/netfilter/xt_MASQUERADE.ko.xz
/lib/modules/6.19.6+deb14+1-rt-amd64/kernel/net/netfilter/nft_masq.ko.xz

while it's present in non-rt builds

That causes libvirt's default network (which uses this module and iptables for
NATing) to not start


-- System Information:
Debian Release: forky/sid
  APT prefers testing
  APT policy: (800, 'testing'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.19.6+deb14+1-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=pl_PL.UTF-8, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-rt-amd64 depends on:
ii  linux-base-rt-amd64                  6.19.6-2
ii  linux-image-6.19.6+deb14+1-rt-amd64  6.19.6-2

linux-image-rt-amd64 recommends no packages.

linux-image-rt-amd64 suggests no packages.

-- no debconf information