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@labbott and I noticed some weirdness in DIMM temperature readings:
Screen.Recording.2025-07-23.at.3.06.23.PM.mov
This corresponds to intermittent TemperatureReadTimeout logs in the cosmo-spd ringbuf, which means that bus0/1_rx_byte_count didn't hit 2 bytes within 8 ms of polling (source)
The behavior is weirdly bistable: we'll have solid readings from all sensors for a while, then they'll flicker wildly for a time, then go back to being stable.
It's unclear if this is a Hubris or FPGA issue, but I'm slightly more suspicious of the FPGA.
@labbott and I noticed some weirdness in DIMM temperature readings:
Screen.Recording.2025-07-23.at.3.06.23.PM.mov
This corresponds to intermittent
TemperatureReadTimeoutlogs in thecosmo-spdringbuf, which means thatbus0/1_rx_byte_countdidn't hit 2 bytes within 8 ms of polling (source)The behavior is weirdly bistable: we'll have solid readings from all sensors for a while, then they'll flicker wildly for a time, then go back to being stable.
It's unclear if this is a Hubris or FPGA issue, but I'm slightly more suspicious of the FPGA.