RCU preempt cpu stall

ajayvk1 — Mon, 16 Feb 2026 11:28:05 GMT

Hi,

I’m encountering RCU preempt CPU stall issues on the i.MX6 Quad‑core, but the same problem does not appear on the i.MX6 Dual‑core. I am using Linux kernel 6.1.148 from the mainline (Torvalds) tree. This issue does not occur when running kernel 6.1.128, so it appears to be a regression introduced between 6.1.128 and 6.1.148.

The stall happens randomly during boot.
If there are any known patches, fixes, or specific changes required for i.MX6 that I should apply, please point me to them

I have attached the crash logs below.

Re: RCU preempt cpu stall

Manuel_Salas — Tue, 17 Feb 2026 20:37:41 GMT

Hello @ajayvk1

I hope you are doing very well.

It is highly recommended that you use our linux-imx source instead of the mainline.

Please try it.

Best regards,

Salas.

i.MX ProcessorsのトピックRe: RCU preempt cpu stall

RCU preempt cpu stall

Re: RCU preempt cpu stall