--device-write-bps results in "no such file or directory" #44904
Description
Description
--device-write-bps and --device-read-bps are not working as expected:
# docker run -ti --device-write-bps=/dev/mapper/delayed:500mb ubuntu:22.04 /bin/bash
docker: Error response from daemon: stat 500mb: no such file or directory.
ERRO[0000] error waiting for container: context canceled
I looked with strace and I think this is the syscall that's failing:
280956 newfstatat(AT_FDCWD, "500mb", 0xc0007b4370, 0) = -1 ENOENT (No such file or directory)
--device-write-bps=/dev/mapper/delayed:500 also fails with the same error (stat 500: no such file or directory.)
--device-write-iops works:
# docker run -ti --device-write-iops=/dev/mapper/delayed:500 ubuntu:22.04 /bin/bash
root@0ac981aa0d8d:/#
Reproduce
docker run -ti --device-write-bps=/dev/mapper/delayed:500mb ubuntu:22.04 /bin/bash
Expected behavior
The container should start with the correct block I/O throttling settings.
docker version
Client: Docker Engine - Community
Version: 23.0.0
API version: 1.42
Go version: go1.19.5
Git commit: e92dd87
Built: Wed Feb 1 17:46:45 2023
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 23.0.0
API version: 1.42 (minimum version 1.12)
Go version: go1.19.5
Git commit: d7573ab
Built: Wed Feb 1 17:44:25 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.16
GitCommit: 31aa4358a36870b21a992d3ad2bef29e1d693bec
runc:
Version: 1.1.4
GitCommit: v1.1.4-0-g5fd4c4d
docker-init:
Version: 0.19.0
GitCommit: de40ad0docker info
Client:
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.10.2
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.15.1
Path: /usr/libexec/docker/cli-plugins/docker-compose
scan: Docker Scan (Docker Inc.)
Version: v0.23.0
Path: /usr/libexec/docker/cli-plugins/docker-scan
Server:
Containers: 22
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: 1
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: 31aa4358a36870b21a992d3ad2bef29e1d693bec
runc version: v1.1.4-0-g5fd4c4d
init version: de40ad0
Security Options:
seccomp
Profile: builtin
Kernel Version: 4.18.0-358.el8.x86_64
Operating System: CentOS Stream 8
OSType: linux
Architecture: x86_64
CPUs: 40
Total Memory: 187.6GiB
Name: xxx
ID: 363da9fd-b7de-447c-a6e8-f6cc1730d9e6
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: falseAdditional Info
No response