Comment # 3 on bug 1195768 from Nicolai Stange

(In reply to Petr Vorel from comment #0)
> There is kernel oops on Tumbleweed ppc64le kernel:
> 
> [    0.295853][   T83] Failed to allocate xts(aes) fallback: -2
> [    0.296710][   T83] alg: skcipher: failed to allocate transform for
> p8_aes_xts: -2

Looks like p8_aes_xts fails to allocate the generic fallback implementation (2
== ENOENT).

You mentioned CONFIG_CRYPTO_DEV_VMX=y, i.e. it's built-in.

I wonder what the settings of CONFIG_CRYPTO_XTS and CONFIG_CRYPTO_AES are each?
Is the Tumbleweed kernel getting built from the "stable" branch at
https://github.com/openSUSE/kernel-source?

If either of these two isn't built-in, then a generic fallback xts(aes) will
indeed not be available this early and it's a kernel config issue, I'd say.