[Bug] Nullpointer Exception in of_diff

Ahmad Fatoum a.fatoum at pengutronix.de
Mon Jun 12 07:50:24 PDT 2023

Hello Johannes,

On 12.06.23 16:26, Johannes Zink wrote:
> Hi,
> I observed a Nullpointer Exception in barebox barebox 2023.05.0 on a Rock3a when calling
> of_diff . .

This should be already fixed in next. You can ask Sascha to pick
"commands: of_diff: simplify error handling" to master if that
fixes your issue.

> on the shell. Please find the complete dump below:


> The behaviour is stable and reproducable on a Rock3A, probably also on other boards. Maybe someone of the more experienced barebox devs already has an idea what's going wrong here and wants to have a closer look, otherwise I'd probably give it a shot within the next few days (and if I manage to find some spare time...)

You can pipe barebox crash logs into Linux scripts/decode_stacktrace.sh
to get line numbers (don't forget to set ARCH/CROSS_COMPILE).
Enabling CONFIG_KASAN=y can also be very useful to pinpoint the origin
of memory corruptions.


> Best regards
> Johannes

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