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Re: [Qemu-devel] [PATCH] target-i386: key sfence availability on CPUID_S

From: Stefan Weil
Subject: Re: [Qemu-devel] [PATCH] target-i386: key sfence availability on CPUID_SSE, not CPUID_SSE2
Date: Mon, 16 May 2016 11:54:50 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.7.0

Am 16.05.2016 um 11:12 schrieb Paolo Bonzini:
> sfence was introduced before lfence and mfence.  This fixes Linux
> 2.4's measurement of checksumming speeds for the pIII_sse
> algorithm:
> md: linear personality registered as nr 1
> md: raid0 personality registered as nr 2
> md: raid1 personality registered as nr 3
> md: raid5 personality registered as nr 4
> raid5: measuring checksumming speed
>    8regs     :   384.400 MB/sec
>    32regs    :   259.200 MB/sec
> invalid operand: 0000

It works now again. Thanks for the fast fix.
I think we'll need a 2.6.1 soon, maybe after solving the VGA regression.

Tested-by: Stefan Weil <address@hidden>

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