dsp is not running
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Hi,
this is my dev drone info.
after working with it quite a bit it started to fail with power issues in prefight. later I noticed battery level is not available. and learned that the dsp is not working good after boot.
I have another drone with same FW there is no problem. can I somehow fix this issue. see below some information.Thanks,
Roy
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system-image: 1.8.06-M0054-14.1a-perf
kernel: #1 SMP PREEMPT Wed Oct 22 04:29:38 UTC 2025 4.19.125
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hw platform: M0054
mach.var: 1.2.1
SKU: MRB-D0012-4-V3-C28-T8-M36-X0
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voxl-suite: 1.6.4~alpha2
────────────────────────────────────────────────────────────────────────────────Symptom
After a session of repeated power-cycles/reboots (while troubleshooting unrelated Wi‑Fi/adb and flight-mode params), PX4 stopped functioning. The apps-side voxl-px4 launcher runs stably (NRestarts=0, stable PID), but no PX4 flight modules run — commander reports not running, battery_status is never published, preflight checks can't run, and voxl-px4 -s hangs. Root cause observed The journal shows the apps↔DSP bridge is dead: ERROR [muorb] Keep alive timeout from DSP: ~1009000 ms repeating continuously. So the SLPI/DSP-side of PX4 isn't responding — everything that runs on the DSP (commander, sensors, ekf2, battery) is absent. What we ruled out - SLPI hardware/firmware is healthy — dmesg shows the subsystem loads fine: slpi: Brought out of reset, Power/Clock ready interrupt received, adsprpc: slpi subsystem is up, opened rpmsg channel for slpi. FastRPC to the DSP is up. - Not a version mismatch — /usr/bin/px4 and /usr/lib/rfsa/adsp/libpx4.so are the same build (both Mar 24 2026), and this exact build flew successfully earlier in the same session. - Not the apps side — apps launcher runs stably, no crash loop. Recovery attempts that did NOT work - systemctl restart voxl-px4 (restarts only the apps-side launcher) - voxl-reset-slpi -t 5000 (DSP "recovered after 800ms" but PX4-on-DSP still didn't come up) - Manual px4-commander start — "succeeds" on the apps side but nothing actually executes on the DSP - A warm/adb reboot — fresh boot (uptime ~6 min, new PID) but commander still absent Question for ModalAI Why does libpx4.so fail to start/communicate on a healthy SLPI (FastRPC channel open, subsystem up) when the apps-side launcher and the DSP .so are the same build that worked earlier? Is this a known FastRPC/qurt PD-restart state that survives voxl-reset-slpi and a warm reboot, and is the recommended recovery a full cold power-cycle and/or a voxl-px4 reinstall to restore the signed/known-good libpx4.so? -
@RoyAzriel Does it come up fine after a power cycle?
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@RoyAzriel no.
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@RoyAzriel I'm guessing that there is a version mismatch somewhere. Can you install a recent SDK from scratch and see if everything comes up fine? And when you say "dev crone" do you mean that this is a custom drone and not one of our products?
