Source: linux Version: 5.10.221-1 Severity: normal X-Debbugs-Cc: hae...@sdinet.de
Updating from Debian Bullseye 5.10.218-1 to 5.10.221-1 broke our NFS server. The server mounts some NFS directories from a NAS, and re-exports them (and more) to other servers. With 5.10.218-1 everything worked just fine. But with 5.10.221-1 (most likeley because of the big NFS backports in 5.10.220) starting the nfs-server.service breaks with Jul 16 12:58:56 mytest-sh exportfs[2071]: exportfs: /media/nfsroot/pvsbackup does not support NFS export We were using the normal Debian Bullseye nfs-kernel-server package: Package: nfs-kernel-server Version: 1:1.3.4-6 NFS Mount via /etc/fstab: 10.1.2.3:/pvsbackup /media/nfsroot/pvsbackup nfs rw,bg,hard,timeo=600,proto=tcp,retrans=2 0 0 NFS export in /etc/exports /media/nfsroot/pvsbackup 10.4.5.6/32(rw,no_root_squash,no_subtree_check,fsid=61cb2589-1805-438a-9bd7-7baf0daabfd2) In the wiki page https://wiki.linux-nfs.org/wiki/index.php/NFS_re-export I found the comment "You'll need nfs-utils at least 1.3.5 (specifically, 3f520e8f6f5 "exportfs: Make sure pass all valid export flags to nfsd"). Otherwise, on recent kernels, attempts to re-export NFS will likely result in "exportfs: <path> does not support NFS export". - and the Debian Bullseye nfs-utils packages based in 1.3.4 do not satisfy this. Seems since the NFS backports 5.10.220 can be seen as "recent kernels", while the previous 5.10.218 not yet. For testing I recompiled/backported the Debian Bookworm nfs-utils 1:2.6.2-4 for Bullseye, and this totally fixes the problems. So I think Debian Bullseye either needs these NFS kernel changes reverted, or its nfs-utils/nfs-kernel-server packages updated to include at least the missing commit. Greetings, Haegar -- System Information: Debian Release: 11.10 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-31-amd64 (SMP w/2 CPU threads) Locale: LANG=en_US.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/bash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled
