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1. muesli (fribbledom@mastodon.social)'s status on Sunday, 17-Jul-2022 00:44:00 UTC muesli

   One and the same Pi4 (with the same power plug, ethernet cable, and HDMI cable, connected to all the same devices) boots up and works just fine in one room of my apartment, but if I move it to its intended place, it crashes with a kernel panic on boot.

   *flips-desk*

   • muesli (fribbledom@mastodon.social)'s status on Sunday, 17-Jul-2022 00:52:34 UTC muesli

     in reply to

     • Softwarewolf

     @faoluin

     Not impossible, but I moved it back and forth at least 5 times now and it's 100% reproducible so far.

   • Softwarewolf (faoluin@chitter.xyz)'s status on Sunday, 17-Jul-2022 00:52:35 UTC Softwarewolf

     in reply to

     • muesli

     @fribbledom Loose solder affected by temperature or humidity difference in location?

   • muesli (fribbledom@mastodon.social)'s status on Sunday, 17-Jul-2022 00:54:37 UTC muesli

     in reply to

     • Softwarewolf

     @faoluin

     One of my first guesses, too. Used an extra long ethernet cable so I could keep it connected to the same switch & port in both rooms.

   • Softwarewolf (faoluin@chitter.xyz)'s status on Sunday, 17-Jul-2022 00:54:38 UTC Softwarewolf

     in reply to

     • muesli

     @fribbledom Hmm, that is a strange one. Difference in network connectivity perhaps?

   • muesli (fribbledom@mastodon.social)'s status on Sunday, 17-Jul-2022 01:02:49 UTC muesli

     in reply to

     Ok, different power plug and it suddenly works now. The original plug only works in that one specific room. I'm tempted to debug this properly...

   • GoatsLive (goatslive@mastodon.social)'s status on Sunday, 17-Jul-2022 01:10:36 UTC GoatsLive

     in reply to

     • muesli

     @fribbledom That's weird. Wondering of there's a problem with the neutral in the original plug socket?

   • muesli (fribbledom@mastodon.social)'s status on Sunday, 17-Jul-2022 06:14:47 UTC muesli

     in reply to

     • Senior Rabbit-Hole Explorer

     @heiglandreas

     Wait, what do you mean?

   • Senior Rabbit-Hole Explorer (heiglandreas@phpc.social)'s status on Sunday, 17-Jul-2022 06:14:48 UTC Senior Rabbit-Hole Explorer

     in reply to

     • muesli

     @fribbledom Broken ethernet wiring in the wall-plug?

   • muesli (fribbledom@mastodon.social)'s status on Sunday, 17-Jul-2022 07:09:12 UTC muesli

     in reply to

     • Senior Rabbit-Hole Explorer

     @heiglandreas

     Ah, no, as mentioned in the original post: same ethernet cable, connected to the same switch & port. Just dragged the Pi into the next room.

   • Senior Rabbit-Hole Explorer (heiglandreas@phpc.social)'s status on Sunday, 17-Jul-2022 07:09:13 UTC Senior Rabbit-Hole Explorer

     in reply to

     • muesli

     @fribbledom When the ethernet cabling in the second room has an issue (like broken or swapped cables) you might get something lime that.

     But you seem to have tracked it down to the power supply, so everything seems OK now 😉

     We once had machines boot without issues in one room but with problems in another room. turned out it was the room lighting in one room that was emitting IR frequencies that interferred with the machines... Took us a while...

   • Sredni Vashtar (srednivashtar@castlecannon.house)'s status on Sunday, 17-Jul-2022 08:45:15 UTC Sredni Vashtar

     in reply to

     • muesli
     @fribbledom It's definitely the external network connection to the Pi so:
     Faulty RJ45 connector on the Pi
     Faulty cable
     Faulty connectors on the cable
     Faulty port(s) on the switch
     
     Have you:
     Booted without network connection?
     Booted with WIFI?
     
     Last resort answer:
     The room is haunted. :-)