Apparent regression in r250359

[Jim Ohlstein]

On 05/09/13 10:30, Konstantin Belousov wrote:
> On Thu, May 09, 2013 at 10:13:15AM -0400, Jim Ohlstein wrote:
>> # sysctl hw.model
>> hw.model: AMD FX(tm)-8350 Eight-Core Processor
> Ahh, so it seems that this is a CPU with the LWP.
> Please try the patch at the end of message.

Same error

>
> As another workaround, which does not disable AVX support, you
> could try loader tunable hw.xsave_mask=0x7.

This works

<snip>

>
> diff --git a/sys/amd64/amd64/fpu.c b/sys/amd64/amd64/fpu.c
> index de79baa..61ce94d 100644
> --- a/sys/amd64/amd64/fpu.c
> +++ b/sys/amd64/amd64/fpu.c
> @@ -687,7 +687,7 @@ fpugetregs(struct thread *td)
>   		    offsetof(struct xstate_hdr, xstate_bv));
>   		max_ext_n = flsl(xsave_mask);
>   		for (i = 0; i < max_ext_n; i++) {
> -			bit = 1 << i;
> +			bit = 1ULL << i;
>   			if ((*xstate_bv & bit) != 0)
>   				continue;
>   			bcopy((char *)fpu_initialstate +
>


-- 
Jim Ohlstein