Hello,
I’m having stability issues with a Hailo-8 accelerator on a Raspberry Pi 5 when using NVMe storage, and I’m hoping for guidance.
My setup:
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Device: Seeed Recomputer AI R2140 (Raspberry Pi 5 + Hailo-8)
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RAM: 16GB
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OS: Home Assistant OS 17 (HAOS)
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Application: Frigate 0.16.4
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Storage:
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Works: microSD card
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Problems: NVMe SSD
(Silicon Power 128GB NVMe PCIe Gen3x4, SP128GBP34A60M28)
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Interface: Pi 5 PCIe
Issue:
When running HAOS from microSD:
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Hailo works normally
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No errors
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Frigate detects accelerator
When running from NVMe:
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Undervoltage warnings appear
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Frigate logs:
HAILO_OUT_OF_PHYSICAL_DEVICES -
Sometimes Hailo is not detected
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AI acceleration stops
s6-rc: info: service s6rc-fdholder: starting
s6-rc: info: service s6rc-oneshot-runner: starting
s6-rc: info: service s6rc-oneshot-runner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service s6rc-fdholder successfully started
s6-rc: info: service fix-attrs successfully started
s6-rc: info: service legacy-cont-init: starting
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service prepare: starting
s6-rc: info: service log-prepare: starting
s6-rc: info: service log-prepare successfully started
s6-rc: info: service nginx-log: starting
s6-rc: info: service go2rtc-log: starting
s6-rc: info: service frigate-log: starting
s6-rc: info: service certsync-log: starting
s6-rc: info: service nginx-log successfully started
s6-rc: info: service go2rtc-log successfully started
s6-rc: info: service frigate-log successfully started
s6-rc: info: service prepare successfully started
s6-rc: info: service go2rtc: starting
s6-rc: info: service certsync-log successfully started
s6-rc: info: service go2rtc successfully started
s6-rc: info: service go2rtc-healthcheck: starting
s6-rc: info: service frigate: starting
s6-rc: info: service go2rtc-healthcheck successfully started
s6-rc: info: service frigate successfully started
s6-rc: info: service nginx: starting
2026-02-07 23:09:50.969571430 [INFO] Starting NGINX...
2026-02-07 23:09:50.986764694 [INFO] No TLS certificate found. Generating a self signed certificate...
2026-02-07 23:09:51.314131288 [INFO] Preparing Frigate...
2026-02-07 23:09:51.892695544 [INFO] Preparing new go2rtc config...
2026-02-07 23:09:51.958195938 [INFO] Got IP address from supervisor: 192.168.86.23
2026-02-07 23:09:52.023488048 [INFO] Got WebRTC port from supervisor: 8555
2026-02-07 23:09:52.190851984 [INFO] Starting Frigate...
2026-02-07 23:09:52.669879488 [INFO] Starting go2rtc...
2026-02-07 23:09:52.824634979 18:09:52.824 INF go2rtc platform=linux/arm64 revision=fa580c5 version=1.9.9
2026-02-07 23:09:52.824662697 18:09:52.824 INF config path=/dev/shm/go2rtc.yaml
2026-02-07 23:09:52.825790064 18:09:52.825 INF [rtsp] listen addr=:8554
2026-02-07 23:09:52.825795989 18:09:52.825 INF [api] listen addr=:1984
2026-02-07 23:09:52.826703596 18:09:52.826 INF [webrtc] listen addr=:8555
2026-02-07 23:09:54.222479984 /usr/local/lib/python3.11/dist-packages/numpy/core/getlimits.py:549: UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero.
2026-02-07 23:09:54.222486205 setattr(self, word, getattr(machar, word).flat[0])
2026-02-07 23:09:54.222604112 /usr/local/lib/python3.11/dist-packages/numpy/core/getlimits.py:89: UserWarning: The value of the smallest subnormal for <class 'numpy.float64'> type is zero.
2026-02-07 23:09:54.222606408 return self._float_to_str(self.smallest_subnormal)
2026-02-07 23:09:54.222699800 /usr/local/lib/python3.11/dist-packages/numpy/core/getlimits.py:549: UserWarning: The value of the smallest subnormal for <class 'numpy.float32'> type is zero.
2026-02-07 23:09:54.222702003 setattr(self, word, getattr(machar, word).flat[0])
2026-02-07 23:09:54.222704206 /usr/local/lib/python3.11/dist-packages/numpy/core/getlimits.py:89: UserWarning: The value of the smallest subnormal for <class 'numpy.float32'> type is zero.
2026-02-07 23:09:54.222707613 return self._float_to_str(self.smallest_subnormal)
2026-02-07 23:09:56.135894679 [2026-02-07 18:09:56] frigate.util.config INFO : Checking if frigate config needs migration...
2026-02-07 23:09:56.156294575 [2026-02-07 18:09:56] frigate.util.config INFO : frigate config does not need migration...
2026-02-07 23:09:56.188253085 [2026-02-07 18:09:56] frigate.app INFO : Starting Frigate (0.16.4-4131252)
2026-02-07 23:09:56.194798080 [2026-02-07 18:09:56] frigate.app INFO : Creating directory: /tmp/cache
2026-02-07 23:09:56.200809644 [2026-02-07 18:09:56] peewee_migrate.logs INFO : Starting migrations
2026-02-07 23:09:56.202194305 [2026-02-07 18:09:56] peewee_migrate.logs INFO : There is nothing to migrate
2026-02-07 23:09:56.227474082 [2026-02-07 18:09:56] frigate.app INFO : Recording process started: 212
2026-02-07 23:09:56.229006459 [2026-02-07 18:09:56] frigate.app INFO : Review process started: 224
2026-02-07 23:09:56.235624239 [2026-02-07 18:09:56] frigate.app INFO : go2rtc process pid: 118
2026-02-07 23:09:56.258458808 [2026-02-07 18:09:56] detector.hailo8l INFO : Starting detection process: 237
2026-02-07 23:09:56.268678975 [2026-02-07 18:09:56] frigate.app INFO : Embedding process started: 241
2026-02-07 23:09:56.293245684 [2026-02-07 18:09:56] frigate.detectors.plugins.hailo8l ERROR : Inference error: Could not determine Hailo architecture.
2026-02-07 23:09:56.298226993 [2026-02-07 18:09:56] frigate.app INFO : Output process started: 263
2026-02-07 23:09:56.355195435 [2026-02-07 18:09:56] frigate.app INFO : Camera processor started for basement_camera: 298
2026-02-07 23:09:56.427246446 [2026-02-07 18:09:56] frigate.app INFO : Capture process started for basement_camera: 303
2026-02-07 23:09:56.662705057 [HailoRT] [error] CHECK failed - Failed to create vdevice. there are not enough free devices. requested: 1, found: 0
2026-02-07 23:09:56.662730386 [HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_OUT_OF_PHYSICAL_DEVICES(74)
2026-02-07 23:09:56.662732849 [HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_OUT_OF_PHYSICAL_DEVICES(74)
2026-02-07 23:09:56.662818502 [HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_OUT_OF_PHYSICAL_DEVICES(74)
2026-02-07 23:09:56.662830333 [HailoRT] [error] CHECK_SUCCESS failed with status=HAILO_OUT_OF_PHYSICAL_DEVICES(74)
2026-02-07 23:09:56.664136581 [2026-02-07 18:09:56] frigate.detectors.plugins.hailo8l ERROR : [INIT] Failed to initialize HailoAsyncInference: libhailort failed with error: 74 (HAILO_OUT_OF_PHYSICAL_DEVICES)
2026-02-07 23:09:56.670699351 Process detector:hailo8l:
2026-02-07 23:09:56.670704368 Traceback (most recent call last):
2026-02-07 23:09:56.670706479 File "/usr/local/lib/python3.11/dist-packages/hailo_platform/pyhailort/pyhailort.py", line 3540, in _open_vdevice
2026-02-07 23:09:56.670707960 self._vdevice = _pyhailort.VDevice.create(self._params, device_ids)
2026-02-07 23:09:56.670709367 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670710719 hailo_platform.pyhailort._pyhailort.HailoRTStatusException: 74
2026-02-07 23:09:56.670711534
2026-02-07 23:09:56.670712922 The above exception was the direct cause of the following exception:
2026-02-07 23:09:56.670743769
2026-02-07 23:09:56.670745084 Traceback (most recent call last):
2026-02-07 23:09:56.670746824 File "/usr/lib/python3.11/multiprocessing/process.py", line 314, in _bootstrap
2026-02-07 23:09:56.670834106 self.run()
2026-02-07 23:09:56.670836310 File "/opt/frigate/frigate/util/process.py", line 41, in run_wrapper
2026-02-07 23:09:56.670837513 return run(*args, **kwargs)
2026-02-07 23:09:56.670838587 ^^^^^^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670839957 File "/usr/lib/python3.11/multiprocessing/process.py", line 108, in run
2026-02-07 23:09:56.670863416 self._target(*self._args, **self._kwargs)
2026-02-07 23:09:56.670865564 File "/opt/frigate/frigate/object_detection/base.py", line 112, in run_detector
2026-02-07 23:09:56.670867138 object_detector = LocalObjectDetector(detector_config=detector_config)
2026-02-07 23:09:56.670868582 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670870063 File "/opt/frigate/frigate/object_detection/base.py", line 57, in __init__
2026-02-07 23:09:56.670871285 self.detect_api = create_detector(detector_config)
2026-02-07 23:09:56.670872507 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670895096 File "/opt/frigate/frigate/detectors/__init__.py", line 18, in create_detector
2026-02-07 23:09:56.670896948 return api(detector_config)
2026-02-07 23:09:56.670897966 ^^^^^^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670899429 File "/opt/frigate/frigate/detectors/plugins/hailo8l.py", line 256, in __init__
2026-02-07 23:09:56.670900966 self.inference_engine = HailoAsyncInference(
2026-02-07 23:09:56.670902132 ^^^^^^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670903595 File "/opt/frigate/frigate/detectors/plugins/hailo8l.py", line 113, in __init__
2026-02-07 23:09:56.670904595 self.target = VDevice(params)
2026-02-07 23:09:56.670935589 ^^^^^^^^^^^^^^^
2026-02-07 23:09:56.670938071 File "/usr/local/lib/python3.11/dist-packages/hailo_platform/pyhailort/pyhailort.py", line 3533, in __init__
2026-02-07 23:09:56.670939070 self._open_vdevice()
2026-02-07 23:09:56.670940866 File "/usr/local/lib/python3.11/dist-packages/hailo_platform/pyhailort/pyhailort.py", line 3538, in _open_vdevice
2026-02-07 23:09:56.670942125 with ExceptionWrapper():
2026-02-07 23:09:56.670943884 File "/usr/local/lib/python3.11/dist-packages/hailo_platform/pyhailort/pyhailort.py", line 122, in __exit__
2026-02-07 23:09:56.670945051 self._raise_indicative_status_exception(value)
2026-02-07 23:09:56.670947051 File "/usr/local/lib/python3.11/dist-packages/hailo_platform/pyhailort/pyhailort.py", line 172, in _raise_indicative_status_exception
2026-02-07 23:09:56.670958234 raise self.create_exception_from_status(error_code) from libhailort_exception
2026-02-07 23:09:56.670960178 hailo_platform.pyhailort.pyhailort.HailoRTException: libhailort failed with error: 74 (HAILO_OUT_OF_PHYSICAL_DEVICES)
2026-02-07 23:09:56.828761979 [2026-02-07 18:09:56] frigate.api.fastapi_app INFO : Starting FastAPI app
2026-02-07 23:09:57.322375401 [2026-02-07 18:09:57] frigate.api.fastapi_app INFO : FastAPI started
2026-02-07 23:09:58.505595663 loading data from : /config/model_cache/facedet/landmarkdet.yaml
2026-02-07 23:09:59.608235878 INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
2026-02-07 23:10:00.965702638 [INFO] Starting go2rtc healthcheck service...
Notes:
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Same power supply in both cases
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No major config changes
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Read about driver changes on Debian/Pi OS, but I’m using HAOS
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Unsure if HAOS handles Hailo drivers differently
Questions:
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Is Hailo-8 officially supported with NVMe on Raspberry Pi 5?
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Are there known PCIe or power conflicts?
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Are special drivers/firmware needed for HAOS?
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Is this likely