[Pkg-zfsonlinux-devel] Bug#1126316: zfsutils-linux: /usr/lib/udev/vdev_id requires gawk when multipath enabled

[Paul B. Henson]

Package: zfsutils-linux
Version: 2.3.2-2
Severity: normal
X-Debbugs-Cc: henson at acm.org

While trying to setup /etc/zfs/vdev_id.conf on a system with dual ported
SAS drives using multipath, the expected links were not appearing in
/dev/disk/by-vdev. Upon investigation, I discovered that
/usr/lib/udev/vdev_id uses a gawk specific function:

----
+ awk
                        { len=sprintf ("%20s",length($0)); gsub(/ /,0,str); a[NR]=len "_" $0; }
                        END {
                                asort(a)
                                print substr(a[1],22)
                        }
awk: line 7: function asort never defined
-----

The default awk implementation appears to be mawk:

lrwxrwxrwx 1 root root 21 Feb  4  2025 /usr/bin/awk -> /etc/alternatives/awk
lrwxrwxrwx 1 root root 13 Feb  4  2025 /etc/alternatives/awk -> /usr/bin/mawk

so the udev script was failing.

I'm assuming upstream probably won't be interested in making their awk
script posix compliant, so perhaps zfsutils-linux should depend on gawk,
and the script be updated to call gawk directly rather than whatever the
default system awk is?

Oh, I generated this bug report on my workstation as the server can't
connect to the Internet; the server is running Debian 13 not 12.

Thanks...

-- System Information:
Debian Release: 12.13
  APT prefers oldstable-updates
  APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-42-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.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 zfsutils-linux depends on:
ii  init-system-helpers  1.65.2+deb12u1
ii  libblkid1            2.38.1-5+deb12u3
ii  libc6                2.36-9+deb12u13
pn  libnvpair3linux      <none>
ii  libssl3              3.0.18-1~deb12u1
ii  libudev1             252.39-1~deb12u1
ii  libuuid1             2.38.1-5+deb12u3
pn  libuutil3linux       <none>
pn  libzfs4linux         <none>
pn  libzfs6linux         <none>
pn  libzpool5linux       <none>
pn  libzpool6linux       <none>
ii  python3              3.11.2-1+b1

Versions of packages zfsutils-linux recommends:
pn  zfs-modules | zfs-dkms  <none>
pn  zfs-zed                 <none>

Versions of packages zfsutils-linux suggests:
pn  nfs-kernel-server           <none>
ii  samba-common-bin            2:4.17.12+dfsg-0+deb12u3
pn  zfs-initramfs | zfs-dracut  <none>