Re: HMAC regression

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> You must getting an sg entry that crosses a page boundary, rather than
> two sg entries that both stay within a page.

Yes.

> These things are very rare, and usually occurs as
> a result of SLAB debugging causing kmalloc to return memory that
> crosses page boundaries.

Indeed, SLAB_DEBUG was enabled in my config. Disabling it resolves this
issue.

> Can you see if this patch fixes the problem?

Yes, it fixes HMAC calculation with enabled SLAB debugging.

Thanks for your help!

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