id = 2690
title = "\"Guest says index 40947 is available\""
state = "closed"
created_at = "2024-11-19T17:00:44.881Z"
closed_at = "2024-12-02T08:46:31.949Z"
labels = ["device:virtio"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2690"
host-os = "Debian testing"
host-arch = "x86_64"
qemu-version = "Sorry I've now deleted the distro version but it was 8.x"
guest-os = "Debian"
guest-arch = "x86"
description = """As discussed [here](https://github.com/danobi/vmtest/issues/96) I have been running several instances of QEMU in parallel at `SCHED_IDLE`, and I've been getting QGA setup failures."""
reproduce = """1. Install [vmtest](https://github.com/danobi/vmtest)
2. Run lots of copies of the command in the [github issues](https://github.com/danobi/vmtest/issues/96) via `chrt --idle 0`.
3. Unclear if this is the cause, but then I use the computer in the meantime so probably starve the `SCHED_IDLE` QEMU threads running from 2.

This leads to failures to connect to the guest agent and then at the end I see this:

```
Guest says index 40947 is available
    qemu-system-x86_64: Guest says index 40947 is available
    qemu-system-x86_64: Guest says index 40947 is available
```


The developer of vmtest seemed to think this may be of interest to QEMU developers based on the tone of the [comment they found](https://github.com/danobi/vmtest/issues/96#issuecomment-2483860554) in the QEMU code.

I've now installed QEMU from Git master so I can report back whether the bug still appeared."""
additional = "n/a"