Void with 512 megs of RAM (VM) - xbps sync causes OOMkill #635

Activity

1. Duncaen commented on Aug 2, 2025

   

   Duncaen

   on Aug 2, 2025

   Member

   More actions

   Might be fixed now, I reduced a bunch of temporary allocations, most memory is basically spent on keeping repository indexes and package database in memory since they are not the most compact format there is. But it never actually allocated that much memory in total, I think its just that it temporarily allocated a bunch of stuff.

   #636
2. Vaelatern commented on Aug 10, 2025

   

   Vaelatern

   on Aug 10, 2025

   MemberAuthor

   More actions

   I'll test again
3. Vaelatern commented on Nov 25, 2025

   

   Vaelatern

   on Nov 25, 2025

   MemberAuthor

   More actions

   Very impressive!

   I had to set +e around the tar command in this script because tar would OOM. I had to remove the tarball and excess files because if I didn't the system would OOM. But xbps-install with 0.60.4_1 was able to install a whole system with the default 512 megs provided by qemu

   └» find
   .
   ./output-void-musl
   ./output-void-musl/void-nova
   ./http
   ./http/basic-void.cfg
   ./void-autoinstall.pkr.hcl
   └» cat ./void-autoinstall.pkr.hcl
   source "qemu" "void-musl" {
     iso_url          = "https://repo-fastly.voidlinux.org/live/current/void-live-x86_64-musl-20250202-base.iso"
     iso_checksum     = "sha256:0c46bf13a7a019c1fec0b2969201aecf09ff9a7646ef749e04ea63ead0c86404"
     output_directory = "output-void-musl"
     shutdown_command = "echo 'voidlinux' | sudo -S shutdown -P now"
     disk_size        = "25G"
     format           = "qcow2"
     accelerator      = "kvm"
     headless         = true
     http_directory   = "http"
   
     ssh_username = "admin"
     ssh_password = "voidlinux"
     ssh_timeout  = "90m" # How long we give the system to get installed
   
     boot_wait = "2s"
     boot_command = [
       "<tab><wait>",
       "auto autourl=http://{{.HTTPIP}}:{{.HTTPPort}}/basic-void.cfg",
       "<enter>"
     ]
   }
   
   build {
     source "source.qemu.void-musl" {
       vm_name = "void-nova"
     }
   }
   └» cat ./http/basic-void.cfg
   #!/bin/sh
   
   export username=admin
   export password=voidlinux
   
   export XBPS_ARCH=x86_64-musl
   export xbpsrepository="https://repo-fastly.voidlinux.org/current/musl"
   
   export timezone="America/New_York"
   
   export pkgs="docker git neovim temporal-cli nomad uv"
   
   export end_action=func
   end_function() {
           printf "Linking default services\n"
           ln -s /etc/sv/docker "${target}/etc/runit/runsvdir/default/docker"
           ln -s /etc/sv/dhcpcd "${target}/etc/runit/runsvdir/default/dhcpcd"
           ln -s /etc/sv/sshd "${target}/etc/runit/runsvdir/default/sshd"
           ln -s /etc/sv/agetty-ttyS0 "${target}/etc/runit/runsvdir/default/agetty-ttyS0"
           echo "***"
   
   
           echo "***"
           printf "Let's continue with our life.\n"
           sync
           reboot -f
   }
   
   # Skip boot partition
   VAI_partition_disk() {
           sfdisk "${disk}" <<EOF
   ,${swapsize},S
   ;
   EOF
   }
   VAI_format_disk() {
           mkfs.ext4 -F "${disk}2"
           mkswap -f "${disk}1"
   }
   export swapsize="1G"
   
   VAI_mount_target() {
           mkdir -p "${target}"
           mount "${disk}2" "${target}"
   }
   
   VAI_configure_fstab() {
           uuid_root="$(blkid -s UUID -o value "${disk}2")"
           uuid_swap="$(blkid -s UUID -o value "${disk}1")"
           echo "UUID=$uuid_root / ext4 defaults,errors=remount-ro,noatime 0 1" >> "${target}/etc/fstab"
           echo "UUID=$uuid_swap swap swap defaults 0 0" >> "${target}/etc/fstab"
   }
   
   # Removable when this is closed
   VAI_install_base_system() {
       cd /var/
       xbps-uhelper fetch https://repo-default.voidlinux.org/static/xbps-static-static-0.60.4_1.x86_64-musl.tar.xz
       set +e
       tar -xvf xbps-static*
       set -e
       mv usr/bin/xbps-install.static /bin/xbps-install
       rm -rf usr xbps-static*
       xbps-install -V
       # Install a base system
       XBPS_ARCH="${XBPS_ARCH}" xbps-install -Sy -R "${xbpsrepository}" -r /mnt base-system grub
   
       # Install additional packages
       if [  -n "${pkgs}" ] ; then
           # shellcheck disable=SC2086
           XBPS_ARCH="${XBPS_ARCH}" xbps-install -y -R "${xbpsrepository}" -r /mnt ${pkgs}
       fi
   }
   

   If I add void-repo-nonfree to the mix, the additional repository does seem to scale past the remaining memory. Might be able to squeeze by if I'd been using an image with xbps-install not being replaced.