[Xen-users] Re: [Xen-devel] Re: 2.6.28.7 domU: 32-bit emulation seems to be broken

[Sven Köhler <sven.koehler@xxxxxxxxx>]

Jeremy Fitzhardinge schrieb:
> Sven Köhler wrote:
>> Jeremy Fitzhardinge schrieb:
>>  
>>> Has it ever worked?  If so, what kernel version did it stop working
>>> at?     
>>
>> I've just tried a good old non-pv_ops 2.6.18 kernel:
>>
>> I ran the same binary file, that segfaults on 2.6.28.7.
>> It runs just fine on 2.6.18.
>>
>> I haven't tested any other pc_ops kernel version. I'm not sure, that it
>> ever worked with these kernel. Which was the first kernel version, that
>> had domU support? 2.6.28.0 ?
>>
>>   
> Does this patch help?
> 
> diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
> index e4baa06..3ea8299 100644
> --- a/arch/x86/ia32/ia32entry.S
> +++ b/arch/x86/ia32/ia32entry.S
> @@ -400,7 +400,6 @@ ENTRY(ia32_syscall)
>     /*CFI_REL_OFFSET    rflags,EFLAGS-RIP*/
>     /*CFI_REL_OFFSET    cs,CS-RIP*/
>     CFI_REL_OFFSET    rip,RIP-RIP
> -    PARAVIRT_ADJUST_EXCEPTION_FRAME
>     SWAPGS
>     /*
>      * No need to follow this irqs on/off section: the syscall

No, still segfaults :-(

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