linux-kernel - [lkp] [KVM] 0c32e5dd82: stderr: KVM: entry failed, hardware error 0x80000021

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Message-ID: <87k2pqd3rz.fsf@yhuang-dev.intel.com>
Date:	Tue, 10 Nov 2015 09:47:12 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Wanpeng Li <wanpeng.li@...mail.com>
CC:	0day robot <fengguang.wu@...el.com>
Subject: [lkp] [KVM] 0c32e5dd82: stderr: KVM: entry failed, hardware error 0x80000021

FYI, we noticed the below changes on

https://github.com/0day-ci/linux Wanpeng-Li/KVM-x86-Reset-RFLAGS-state-following-processor-init-reset/20151103-194355
commit 0c32e5dd82fd0e63fd9e6aecf5a4bffbdf2ab207 ("KVM: x86: Reset RFLAGS state following processor init/reset")

The stderr of kvm-unit-tests is as follow for your commit.

KVM: entry failed, hardware error 0x80000021

If you're running a guest on an Intel machine without unrestricted mode
support, the failure can be most likely due to the guest entering an invalid
state for Intel VT. For example, the guest maybe running in big real mode
which is not supported on less recent Intel processors.

EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000600
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=00000000 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 0000ffff 00009300
CS =1000 00010000 0000ffff 00009b00
SS =0000 00000000 0000ffff 00009300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000000
Code=<ea> 90 74 00 f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Terminated


To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Ying Huang

View attachment "config-4.3.0-rc3-00110-g0c32e5d" of type "text/plain" (141636 bytes)

View attachment "job.yaml" of type "text/plain" (2920 bytes)

View attachment "reproduce" of type "text/plain" (16 bytes)