hugetlbfs filesystem not available

[YotillaAntoni]

Description

Since version 4.26.0 huge pages support is not available in the kernel.
hugetlbfs is not available on /proc/filesystems

Reproduce

docker run --rm -it --privileged ubuntu
$ cat /proc/filesystems

Expected behavior

hugetlbfs should be available under /proc/filesystems

docker version

Client:
 Cloud integration: v1.0.35+desktop.5
 Version:           24.0.7
 API version:       1.43
 Go version:        go1.20.10
 Git commit:        afdd53b
 Built:             Thu Oct 26 09:04:20 2023
 OS/Arch:           darwin/amd64
 Context:           desktop-linux

Server: Docker Desktop 4.26.0 (130397)
 Engine:
  Version:          24.0.7
  API version:      1.43 (minimum version 1.12)
  Go version:       go1.20.10
  Git commit:       311b9ff
  Built:            Thu Oct 26 09:08:02 2023
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.25
  GitCommit:        d8f198a4ed8892c764191ef7b3b06d8a2eeb5c7f
 runc:
  Version:          1.1.10
  GitCommit:        v1.1.10-0-g18a0cb0
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

docker info

Client:
 Version:    24.0.7
 Context:    desktop-linux
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.12.0-desktop.2
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.23.3-desktop.2
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-compose
  dev: Docker Dev Environments (Docker Inc.)
    Version:  v0.1.0
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-dev
  extension: Manages Docker extensions (Docker Inc.)
    Version:  v0.2.21
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-extension
  feedback: Provide feedback, right in your terminal! (Docker Inc.)
    Version:  0.1
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-feedback
  init: Creates Docker-related starter files for your project (Docker Inc.)
    Version:  v0.1.0-beta.10
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-init
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc.)
    Version:  0.6.0
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-sbom
  scan: Docker Scan (Docker Inc.)
    Version:  v0.26.0
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-scan
  scout: Docker Scout (Docker Inc.)
    Version:  v1.2.0
    Path:     /Users/antoni.reus/.docker/cli-plugins/docker-scout

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 29
 Server Version: 24.0.7
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: d8f198a4ed8892c764191ef7b3b06d8a2eeb5c7f
 runc version: v1.1.10-0-g18a0cb0
 init version: de40ad0
 Security Options:
  seccomp
   Profile: unconfined
  cgroupns
 Kernel Version: 6.5.11-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 16
 Total Memory: 15.63GiB
 Name: docker-desktop
 ID: cf5c0a88-1e16-42fc-9179-3cca50c1bd86
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: http.docker.internal:3128
 HTTPS Proxy: http.docker.internal:3128
 No Proxy: hubproxy.docker.internal
 Experimental: false
 Insecure Registries:
  hubproxy.docker.internal:5555
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: daemon is not using the default seccomp profile

Diagnostics ID

65E30340-48C5-4468-A43F-61DF8F2BCFD3/20231213085922

Additional Info

No response

[eriegger2]

Confirm issue.

[dgageot]

Sorry for the inconvenience, we had to remove CONFIG_CGROUP_HUGETLB from the kernel config, because it causes issues with many PHP programs.

Could you share the use case that you have that requires this config? Maybe we can help.

[eriegger2]

Could you share the use case that you have that requires this config?

My use case was to use Exasol in a Docker container, which does not work anymore.
In general, from my point of view, most databases (Informix, PostgreSQL, Oracle, Db2 ...) are using Huge Pages, e.g.
Why Linux HugePages are Super Important for Database Servers: A Case with PostgreSQL

[dgageot]

Hi everyone! Turns out we found how to re-enable Huge Pages, keep Transparent Huge Pages and still fix the php issue. This should ship in Docker Desktop 4.27.

[dgageot]

@YotillaAntoni Could you test Docker Desktop 4.27 and close this issue if it's fixed?

[YotillaAntoni]

I just tested 4.27.0 and works as expected. Thanks!