Bryce,

I can report the following:

Am 14. Aug 2024, um 15:22:30 schrieb Bryce Harrington:
> Mario, can you provide a log showing the assertion failure?

It simply says:
gpsmon: assertion failure, probable I/O error

Or with gpsmon -D5 to provide some more details:

gpsmon:INFO: startup at 2024-08-22T21:44:50.000Z (1724363090)
gpsmon:PROG: CORE: gpsd_activate(tcp://localhost:2947, 1) fd -1
gpsmon:PROG: CORE: gpsd_open(tcp://localhost:2947) fd -1
gpsmon:PROG: CORE: opening TCP feed at localhost, port 2947.
gpsmon:PROG: CORE: TCP tcp://localhost:2947 IP  opened on fd 3
gpsmon:PROG: CORE: activate fd 3 done
gpsmon: assertion failure, probable I/O error

gpsd-3.25-dev (GIT download, built myself) does not suffer from this
problem. I havent bisected it though.

-git seems to mostly work, there is only the oddity remaining that after
I powercycle the GPS, gpsd does not seem to completely recognize it
again and switchin the unit to UBX mode as it does when gpsd is started.
With NMEA the output in particular of cgps flickers between n/a and
correct data. I have not yet checked if this is merely cosmetic or if
does influence time synchronization via chronyd.

I can further report that the problem does not seem to change with GPS
units, at least I have now sample size = 2 with a NEO-M8N unit. It
behaves identically (crash with distributed package, crash is fixed with
mitchdz updated package, assertion error still happens, until I switch
to -git.

Best regards,
Mario

-- 
Mario Lorenz                            Internet:    <[email protected]>

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https://bugs.launchpad.net/bugs/2076191

Title:
  gpsmon crashes (segfault)

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