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+id = 2117
+title = "Unraid, Ubuntu, 9P/virtio and memory issues"
+state = "opened"
+created_at = "2024-01-20T22:38:09.728Z"
+closed_at = "n/a"
+labels = ["block:9p", "device:virtio"]
+url = "https://gitlab.com/qemu-project/qemu/-/issues/2117"
+host-os = "Unraid"
+host-arch = "x86"
+qemu-version = "QEMU emulator version 7.1.0"
+guest-os = "Ubuntu"
+guest-arch = "x86"
+description = """I am running an Ubuntu VM on Unraid - which is using Qemu. I am exposing my shares through "9p Mode" to the VM.
+
+The logs shows:
+-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/mnt/user/backup \\
+-device '{"driver":"virtio-9p-pci","id":"fs0","fsdev":"fsdev-fs0","mount_tag":"backup","bus":"pci.1","addr":"0x0"}' \\
+
+Inside Ubuntu, I mount the exposed shares like this:
+
+sudo mount -t 9p -o trans=virtio "backup" /media/share/backup
+
+I have a script that uses rsync to sync the files from these mounted shares onto an internal disk drive. 
+
+The issues that I am facing, is that rsync sometimes reports "cannot allocate memory":
+
+rsync: [sender] readdir("/media/share/backup/myfolder"): Cannot allocate memory (12)
+ 
+There are "ten thousands" of files in that folder hierarchy, but there are plenty of memory available on the VM (many GBs), so that is no issue. The next time I run the job, it might go through as normal. But I would like to get rid of these issues.
+
+The question is: Is there some kind of memory allocation/limit to the virtio/9p as well? If yes - is there some way to increase it to avoid these errors?"""
+reproduce = """1. Mount as shown
+2. Run rsync on folder with lots of files
+3. See error"""
+additional = """N/A"""