Re: 6.99.33 amd64 panic

[Ilya Zykov <netbsd%izyk.ru@localhost>]

On 04.03.2014 13:25, David Laight wrote:
> On Tue, Mar 04, 2014 at 11:48:33AM +0400, Ilya Zykov wrote:
>> Sorry for worry!
>> Can't boot any more 6.99.33 amd64(GENERIC).
>> Machine: Linux KVM x86_64 2.6.32-431.5.1.el6.centos.plus.x86_64,
>>      ACPI on, APIC on, 2 CPU, 1024 RAM.
>> No matter if ACPI off, SMP off.
>> 6.99.32 boot normaly.
>> Screenshot in attachment.
> 
> Typing 'bt' at the db{0}> prompt might give a stacktrace.
> Hmm... wrxcr isn't supposed to execute 'ldgt', but that is probably
> a bug in the the disassembly.
> Running 'objdump -d /netbsd' probably gives the correct instruction.
> 
> The failing instruction is probably xsetbv.
> The code is probably trying to enable the avx instructions - because
> the cpuid instruction indicated that it is available.
> 
> This might be a bug in the linux kvm code, not netbsd.
> 
>       David
> 

Thank you!
Disabled, in KVM "Intel cpu xsave feature", made help.