Re: [PATCH v5] x86: Enable fast strings on Intel if BIOS hasn't already

[Andi Kleen]

Theodore Ts'o <tytso@xxxxxxx> writes:
>
> In fact, there is the question of whether we should be checking to see
> if the CPU stepping is one of the ones with the bug, and if so, to
> have Linux disable fast strings even if the BIOS didn't, instead of
> blindly enabling fast strings....

Crossing pages with different memory attributes shouldn't happen 
in normal operation. I wouldn't be too concerned about that one.

I would suggest to leave the bit alone. There may be valid
reasons on the system to either set or not set it, which the kernel
doesn't necessarily know.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/