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Disk usage grows uncontrollably #509

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opened 2025-12-29 01:20:32 +01:00 by adam · 3 comments
adam commented 2025-12-29 01:20:32 +01:00
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Originally created by @ju-li on GitHub (Jun 29, 2023).

Hi everyone,

Does this happen to you too?

I ran docker ps -a --size yesterday:
image

And this was ran today:
image

After about 24h, the size of the containers have grown by 2GB

I am not doing anything with the containers. Not installing or downloading anything. Just running them in the background.

Why is this happening?

The docker command that I'm using is:

    docker run -d --name macos2 \
    --device /dev/kvm \
    -p 50923:10022 \
    -p 5998:5999 \
    -v /tmp/.X11-unix:/tmp/.X11-unix \
    -e "DISPLAY=${DISPLAY:-:0.0}" \
    -e EXTRA="-display none -vnc 0.0.0.0:99" \
    -e GENERATE_SPECIFIC=true \
    -e DEVICE_MODEL="iMacPro1,1" \
    -e SERIAL="{{SERIAL}}" \
    -e BOARD_SERIAL="{{BOARD SERIAL}}" \
    -e UUID="{{UUID}}" \
    -e MAC_ADDRESS="{{MAC}}" \
    sickcodes/docker-osx:mojave

Note: I replaced the serials with {{}} placeholders

OS related issued, please help us identify the issue by posting the output of this

uname -a
; echo "${DISPLAY}"
; echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs
; grep NAME /etc/os-release
; df -h .
; qemu-system-x86_64 --version
; libvirtd --version
; free -mh
; nproc
; egrep -c '(svm|vmx)' /proc/cpuinfo
; ls -lha /dev/kvm
; ls -lha /tmp/.X11-unix/
; ps aux | grep dockerd
; docker ps | grep osx
; grep "docker|kvm|virt" /etc/group

Output is as follows:

1
NAME="Ubuntu"
PRETTY_NAME="Ubuntu 20.04.6 LTS"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
Filesystem                 Size  Used Avail Use% Mounted on
/dev/mapper/vgBUF164-root  467G   78G  366G  18% /
QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.27)
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
libvirtd (libvirt) 6.0.0
              total        used        free      shared  buff/cache   available
Mem:           62Gi       7.2Gi       354Mi       1.0Mi        55Gi        55Gi
Swap:         975Mi       3.0Mi       972Mi
24
24
crw-rw---- 1 root kvm 10, 232 Jun 22 18:08 /dev/kvm
total 8.0K
drwxrwxrwt  2 root root 4.0K Jun 21 17:43 .
drwxrwxrwt 13 root root 4.0K Jun 28 14:49 ..
root        3271  0.0  0.1 3158188 86420 ?       Ssl  Jun21   4:18 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
juli      101652  0.0  0.0   9368  2128 pts/0    S+   16:19   0:00 grep --color=auto dockerd
26a006694c7c   sickcodes/docker-osx:mojave   "/bin/bash -c 'sudo …"   5 days ago   Up 5 days   0.0.0.0:5998->5999/tcp, :::5998->5999/tcp, 0.0.0.0:50923->10022/tcp, :::50923->10022/tcp   macos2
00de1ca0c66d   sickcodes/docker-osx:mojave   "/bin/bash -c 'sudo …"   6 days ago   Up 6 days   0.0.0.0:5999->5999/tcp, :::5999->5999/tcp, 0.0.0.0:50922->10022/tcp, :::50922->10022/tcp   macos
kvm:x:108:
docker:x:998:juli
libvirt:x:118:juli
libvirt-qemu:x:64055:libvirt-qemu
libvirt-dnsmasq:x:119:
Originally created by @ju-li on GitHub (Jun 29, 2023). Hi everyone, Does this happen to you too? I ran `docker ps -a --size` yesterday: ![image](https://github.com/sickcodes/Docker-OSX/assets/40274802/d2e216cb-3a8e-4626-9514-c5e505e847a9) And this was ran today: ![image](https://github.com/sickcodes/Docker-OSX/assets/40274802/1ab15aef-b658-4885-9a2e-57526218800a) After about 24h, the size of the containers have grown by 2GB I am not doing anything with the containers. Not installing or downloading anything. Just running them in the background. Why is this happening? The docker command that I'm using is: ``` docker run -d --name macos2 \ --device /dev/kvm \ -p 50923:10022 \ -p 5998:5999 \ -v /tmp/.X11-unix:/tmp/.X11-unix \ -e "DISPLAY=${DISPLAY:-:0.0}" \ -e EXTRA="-display none -vnc 0.0.0.0:99" \ -e GENERATE_SPECIFIC=true \ -e DEVICE_MODEL="iMacPro1,1" \ -e SERIAL="{{SERIAL}}" \ -e BOARD_SERIAL="{{BOARD SERIAL}}" \ -e UUID="{{UUID}}" \ -e MAC_ADDRESS="{{MAC}}" \ sickcodes/docker-osx:mojave ``` Note: I replaced the serials with {{}} placeholders # OS related issued, please help us identify the issue by posting the output of this uname -a \ ; echo "${DISPLAY}" \ ; echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs \ ; grep NAME /etc/os-release \ ; df -h . \ ; qemu-system-x86_64 --version \ ; libvirtd --version \ ; free -mh \ ; nproc \ ; egrep -c '(svm|vmx)' /proc/cpuinfo \ ; ls -lha /dev/kvm \ ; ls -lha /tmp/.X11-unix/ \ ; ps aux | grep dockerd \ ; docker ps | grep osx \ ; grep "docker\|kvm\|virt" /etc/group # Output is as follows: ``` 1 NAME="Ubuntu" PRETTY_NAME="Ubuntu 20.04.6 LTS" VERSION_CODENAME=focal UBUNTU_CODENAME=focal Filesystem Size Used Avail Use% Mounted on /dev/mapper/vgBUF164-root 467G 78G 366G 18% / QEMU emulator version 4.2.1 (Debian 1:4.2-3ubuntu6.27) Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers libvirtd (libvirt) 6.0.0 total used free shared buff/cache available Mem: 62Gi 7.2Gi 354Mi 1.0Mi 55Gi 55Gi Swap: 975Mi 3.0Mi 972Mi 24 24 crw-rw---- 1 root kvm 10, 232 Jun 22 18:08 /dev/kvm total 8.0K drwxrwxrwt 2 root root 4.0K Jun 21 17:43 . drwxrwxrwt 13 root root 4.0K Jun 28 14:49 .. root 3271 0.0 0.1 3158188 86420 ? Ssl Jun21 4:18 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock juli 101652 0.0 0.0 9368 2128 pts/0 S+ 16:19 0:00 grep --color=auto dockerd 26a006694c7c sickcodes/docker-osx:mojave "/bin/bash -c 'sudo …" 5 days ago Up 5 days 0.0.0.0:5998->5999/tcp, :::5998->5999/tcp, 0.0.0.0:50923->10022/tcp, :::50923->10022/tcp macos2 00de1ca0c66d sickcodes/docker-osx:mojave "/bin/bash -c 'sudo …" 6 days ago Up 6 days 0.0.0.0:5999->5999/tcp, :::5999->5999/tcp, 0.0.0.0:50922->10022/tcp, :::50922->10022/tcp macos kvm:x:108: docker:x:998:juli libvirt:x:118:juli libvirt-qemu:x:64055:libvirt-qemu libvirt-dnsmasq:x:119: ```
adam commented 2025-12-29 01:20:32 +01:00
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@programmrz commented on GitHub (Jul 5, 2023):

I'm not sure exactly how the image works, but ANY write from the macOS "vm" will increase the size of the qcow image, until it reaches the size of the virtual disk you have macos installed on. You can resize the macos portion of the disk (I've set mine to 80gb) so the qcow2 image wont expand higher than that.

@programmrz commented on GitHub (Jul 5, 2023): I'm not sure exactly how the image works, but *ANY* write from the macOS "vm" will increase the size of the qcow image, until it reaches the size of the virtual disk you have macos installed on. You can resize the macos portion of the disk (I've set mine to 80gb) so the qcow2 image wont expand higher than that.
adam commented 2025-12-29 01:20:32 +01:00
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@OriWeiss commented on GitHub (Jul 20, 2023):

@programmrz can you please provide instructions on how to do this? I am having the same issue.

@OriWeiss commented on GitHub (Jul 20, 2023): @programmrz can you please provide instructions on how to do this? I am having the same issue.
adam commented 2025-12-29 01:20:33 +01:00
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@ju-li commented on GitHub (Jul 20, 2023):

@OriWeiss I think he means in this step: https://github.com/sickcodes/Docker-OSX#additional-boot-instructions-for-when-you-are-creating-your-container

(optional) Create a partition using the unused space to house the OS and your files if you want to limit the capacity. (For Xcode 12 partition at least 60gb.)

I haven't tested it but this sounds like a solution

@ju-li commented on GitHub (Jul 20, 2023): @OriWeiss I think he means in this step: https://github.com/sickcodes/Docker-OSX#additional-boot-instructions-for-when-you-are-creating-your-container ```(optional) Create a partition using the unused space to house the OS and your files if you want to limit the capacity. (For Xcode 12 partition at least 60gb.)``` I haven't tested it but this sounds like a solution
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