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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
commitd0c85e36e4de67af628d54e9ab577cc3fad7796a (patch)
treef8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/deepseek-2/output/hypervisor/1816
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloadqemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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+
+Memory size limitation under podman on Apple silicon
+Description of problem:
+We are using latest MacOS (Ventura) on M2 Ultra with 128Gb RAM (Mac Studio) to run our product Linux aarch64 builds in podman containers. This is cheaper than buying ARM server hardware, and we are not able to use cloud services.
+
+The issue arises when we try to use the available RAM for the underlying QEMU machine. There seems to be a memory limit which looks like it is in QEMU not podman machine, since that is more of a wrapper in this process.
+
+The use case is to init a Fedora Linux VM by QEMU which provides a Linux kernel. That kernel is then used to run podman containers.
+
+When we set the memory limit to 64513Mb the podman machine (VM) start fails with "Error: HV_BAD_ARGUMENT". If we reduce the memory limit to "64512" it works as expected.
+
+This is an example of how to reproduce:
+
+`
+macstudio:~ build $ podman machine init --cpus="18" --memory="64513" podman-machine-default
+Extracting compressed file
+Image resized.
+Machine init complete
+To start your machine run:
+
+podman machine start
+
+macstudio:~ build $ podman machine start
+Starting machine "podman-machine-default"
+Waiting for VM ...
+Error: qemu exited unexpectedly with exit code -1, stderr: qemu-system-aarch64: Error: HV_BAD_ARGUMENT
+
+macstudio:~ build $ podman machine rm --force
+macstudio:~ build $ podman machine init --cpus="18" --memory="64512" podman-machine-default
+Extracting compressed file
+Image resized.
+Machine init complete
+To start your machine run:
+
+podman machine start
+
+macstudio:~ build $ podman machine start
+Starting machine "podman-machine-default"
+Waiting for VM ...
+Mounting volume... /Users:/Users
+Mounting volume... /private:/private
+Mounting volume... /var/folders:/var/folders
+
+This machine is currently configured in rootless mode. If your containers
+require root permissions (e.g. ports < 1024), or if you run into compatibility
+issues with non-podman clients, you can switch using the following command:
+
+podman machine set --rootful
+
+API forwarding listening on: /Users/build_ci/.local/share/containers/podman/machine/qemu/podman.sock
+
+The system helper service is not installed; the default Docker API socket
+address can't be used by podman. If you would like to install it run the
+following commands:
+
+sudo /opt/homebrew/Cellar/podman/4.6.0/bin/podman-mac-helper install
+podman machine stop; podman machine start
+
+You can still connect Docker API clients by setting DOCKER_HOST using the
+following command in your terminal session:
+
+export DOCKER_HOST='unix:///Users/build/.local/share/containers/podman/machine/qemu/podman.sock'
+
+Machine "podman-machine-default" started successfully
+macstudio:~ build $ podman machine ls
+NAME                     VM TYPE     CREATED             LAST UP            CPUS        MEMORY     DISK SIZE
+podman-machine-default*  qemu        About a minute ago  Currently running  18          63GiB      100GiB
+
+`
+Steps to reproduce:
+1. Initialise the VM with a RAM limit of 64513Mb, then start it.
+2.
+3.
+Additional information:
+Feel free to ask for more information. Unfortunately, these machines are our production platform, so further testing will not have a rapid turn around. We are open to taking a machine out of production for testing, it just needs scheduling.