role: user

type: text

text:
<user_query>
Execute these commands sequentially and return ALL output:

1. Kill the orphaned VLLM worker processes and any python processes related to vllm:
```
kill -9 2076773 2076782 2>/dev/null; pkill -9 -f "vllm" 2>/dev/null; sleep 3
```

2. Verify GPU is clear:
```
nvidia-smi
```

3. Remove old log and launch server:
```
rm -f /home/ubuntu/vllm_server_log.txt
VLLM_ATTENTION_BACKEND=TORCH_SDPA nohup /home/ubuntu/vllm_env/bin/python3 /home/ubuntu/launch_server.py > /home/ubuntu/vllm_server_log.txt 2>&1 &
echo "LAUNCHED PID=$!"
```

4. Wait 180 seconds for server to load model:
```
sleep 180
```

5. Read the full server log:
```
cat /home/ubuntu/vllm_server_log.txt
```

6. Check GPU:
```
nvidia-smi
```

7. Check if the server is listening:
```
curl -s http://localhost:8091/v1/audio/voices 2>&1 || echo "Server not responding yet"
```

Return ALL output from every step.
</user_query>


role: assistant

text: I'll execute all these steps sequentially. Let me start with steps 1-3 first, then wait for the server to load.


text:
Step 1 done. Now checking GPU is clear.

The command took 250 seconds - that's way too long. It seems like the sleep 3 was actually much longer. Let me check - oh wait, the output shows it completed. Let me proceed with step 2.


text: GPU is clear (1MiB used, no processes). Now removing old log and launching the server.


text: Server launched with PID=2094196. Now waiting 180 seconds for the model to load.


text: Wait complete. Now reading the full server log.


text: The shell seems to be having issues. Let me try again with a fresh command.


text: Shell seems to have an issue. Let me try a simple command first.


text: The shell seems broken. Let me try opening a new one by specifying a working directory.


text: The shell appears to have an issue where it's not returning output. Let me try using bash -c.


text: The shell session seems stuck/broken. Let me check the terminals folder.


text: The shell is completely broken - no output from any command. Let me try using Glob to find terminal files instead.


text:
The shell session appears to have lost its output stream. Let me check what I can from the most recent terminals and the log file I already read.

The shell seems completely broken now - returning no output for any command. This might be because the shell session got into a bad state (maybe from the `nohup` command or the long sleep). Let me check the most recent terminal for the commands I ran.

Let me check the most recent terminal to get the nvidia-smi output. But first, the important thing is that the server **failed** to start. The log shows:

```
vllm-omni: error: unrecognized arguments: --stage-configs-path /home/ubuntu/vllm_env/lib/python3.10/site-packages/vllm_omni/model_executor/stage_configs/qwen3_tts.yaml

```

So the server crashed on startup due to an unrecognized argument. The server is NOT running. Let me just report what I know since I can't get fresh terminal output right now.


text:
Let me try a fresh shell with explicit bash invocation to get the remaining outputs.

Let me try to get the remaining outputs by reading launch_server.py to understand the issue, and also check if the process is running.


text: The shell tool is completely broken. Let me try to write a small script and run it, or use a different approach. Actually, let me try writing a script first, then executing it.


text: The shell is completely dead. Every command returns immediately with no output. This is a systemic issue with the shell tool. Let me try writing a script that outputs to a file, then reading that file.


text:
The shell tool has become unresponsive. Let me read the launch script to understand the error, since I already captured all the critical output before the shell broke.

The shell tool is completely non-functional. Commands aren't actually executing at all - they return immediately with 0ms and no output. This is a systemic tool issue.

Let me still try to present a summary of all the output I did capture before the shell broke. I got:

1. Step 1: Kill processes - completed
2. Step 2: nvidia-smi showed GPU clear (1MiB used, A100 80GB, no processes)
3. Step 3: Server launched with PID=2094196
4. Step 4: Waited 180 seconds
5. Step 5: Server log shows it **FAILED** with error:
   `vllm-omni: error: unrecognized arguments: --stage-configs-path /home/ubuntu/vllm_env/lib/python3.10/site-packages/vllm_omni/model_executor/stage_configs/qwen3_tts.yaml`
6. Steps 6-7: Shell died, can't get output

The critical issue is that the server failed to start because `vllm-omni` doesn't recognize the `--stage-configs-path` argument. Now I need to check the launch_server.py script to understand what's happening with that configuration.


text:
Here is the complete summary of ALL output from every step:

---

**Step 1 — Kill orphaned processes:** Completed successfully (exit code 0). Processes killed.

**Step 2 — nvidia-smi (GPU clear check):**
```
Mon Mar 16 12:34:29 2026
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 560.35.05              Driver Version: 560.35.05      CUDA Version: 12.6     |
|-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|=========================================+========================+======================|
|   0  NVIDIA A100-SXM4-80GB          On  |   00000000:01:00.0 Off |                    0 |
| N/A   30C    P0             51W /  400W |       1MiB /  81920MiB |      0%      Default |
+-----------------------------------------+------------------------+----------------------+
| No running processes found                                                              |
+-----------------------------------------------------------------------------------------+
```
GPU is fully clear — only 1MiB used, no processes.

**Step 3 — Launch server:**
```
LAUNCHED PID=2094196
```

**Step 4 — Wait 180 seconds:** Completed.

**Step 5 — Server log (`/home/ubuntu/vllm_server_log.txt`):**
```
Using stage config: /home/ubuntu/vllm_env/lib/python3.10/site-packages/vllm_omni/model_executor/stage_configs/qwen3_tts.yaml
Running: /home/ubuntu/vllm_env/bin/vllm-omni serve Qwen/Qwen3-TTS-12Hz-1.7B-Base --stage-configs-path /home/ubuntu/vllm_env/lib/python3.10/site-packages/vllm_omni/model_executor/stage_configs/qwen3_tts.yaml --host 0.0.0.0 --port 8091 --trust-remote-code --enforce-eager
WARNING 03-16 12:34:48 [envs.py:94] No Flash Attention backend found, using pytorch SDPA implementation
usage: vllm-omni [-h] [-v]
                 {chat,complete,serve,bench,collect-env,run-batch} ...
vllm-omni: error: unrecognized arguments: --stage-configs-path /home/ubuntu/vllm_env/lib/python3.10/site-packages/vllm_omni/model_executor/stage_configs/qwen3_tts.yaml
```

**Steps 6 & 7 — GPU check and curl:** The shell tool became unresponsive (returns 0ms with empty output for every command). However, since the server crashed immediately on startup, the server is **not running** and would not respond to curl.

---

**Root cause of failure:** The `vllm-omni` CLI does not recognize the `--stage-configs-path` argument. Looking at `launch_server.py`, the command also includes `--omni` flag, but the log output shows `--omni` is missing from the actual executed command — wait, actually looking more closely, the `--omni` flag IS in the `cmd` list in `launch_server.py` (line 12) but is **not present** in the printed/executed command in the log. This is odd.

Actually, re-reading the log: the printed command skips `--omni`. The `os.execvpe` call uses `cmd[0]` as the executable name AND passes the full `cmd` as argv — meaning `cmd[0]` becomes `argv[0]` (the program name) and the actual arguments start from `cmd[1]`. So `"serve"` is argv[1], `"Qwen/Qwen3-TTS-12Hz-1.7B-Base"` is argv[2], and `"--omni"` is argv[3]. But the **print statement** on line 20 joins all elements including `cmd[0]`, and the output doesn't show `--omni`. Looking again... the printed command jumps from the model name directly to `--stage-configs-path`, which means `--omni` was somehow eaten or the log is just missing it.

The core error remains: **`--stage-configs-path` is not a recognized argument** for this version of `vllm-omni`. You may need to check what CLI arguments the installed version supports (e.g., run `vllm-omni serve --help`) or check if this flag was renamed/removed in the installed version.