Mysterious system crashes under load

Troubleshooting
1

Creating a bug report/issue

I have searched the existing open and closed issues

Required Information

  • DietPi version |

    G_DIETPI_VERSION_CORE=9

G_DIETPI_VERSION_SUB=18

G_DIETPI_VERSION_RC=1

  • Distro version | bookworm 0

  • Kernel version | Linux DietPi 6.12.47+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1~bookworm (2025-09-16) aarch64 GNU/Linux

  • Architecture | arm64

  • SBC model | RPi 3 Model B (aarch64)

  • Power supply used | SoulBay 5V 3A Micro USB AC Adapter

  • SD card used | Samsung 32GB EVO+ MicroSD HC I

Additional Information (if applicable)

  • Software title | SABnzbd
  • The software has been working very reliably up until recently.
  • I have not yet tried replicating this issue on a fresh install of DietPi.
  • I have opened a support forum post at SABnzbd, but since this issue doesn’t occur with every download in SABnzbd, I want to try to check off other potential issues.

Steps to reproduce

  1. Boot DietPi, start a download in SABnzbd, DietPi system become unresponsive

Expected behaviour

  • Prior to ~ a week ago, downloads completed just fine, which is what I’ve come to expect.

Actual behaviour

DietPi system becomes unresponsive. This does not happen with every download in SABnzbd. SABnzbd is really the only application that puts much of a load on my system; I wonder if my power supply may be going bad? I haven’t tried a stress test yet to see if that crashes my rpi.

Extra details

  • The only changes to my system prior to this issue arising was a recyclarr install and a manual zstd install.
2

Do you have an external USB drive connected, like an SATA HDD or so?

And to get more info you could enable full logging with dietpi-config

3

Do you have an external USB drive connected, like an SATA HDD or so?

I do. That was one of my other thoughts. It’s not a terribly old drive. I’ll enable full logging and see what I can see. Thank you, @Jappe .