Re: [ Re: unhandled vm exit: 0x80000021 vcpu_id 0]

Re: unhandled vm exit: 0x80000021 vcpu_id 0 Sheng Yang 1 participant 1 message Oct 9, 2008 1 message not in the archive KVM

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Sheng Yang

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2008-10-09 14:58 UTC #1 lore raw

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Quoted 5 lines · On Wed, Oct 8, 2008 at 7:16 AM, [email protected] <[email protected]> wrote:

Hi Yang,
I often hibernate my Linux, so may be that the loadmodule message is missing in the dmesg because it is too old.
I have rebooted the system and I attach a "clean" dmesg.

Yeah, now I can see the load info of kvm-76.

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What means "Windows always trig a apic write error before Jan's patch make them slience"? which Windows?

At least Windows XP like to do this, now for upstream, Jan's patch clean it.

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However, when I try ro run qemu/kvm using the winxp image, no error happens in the dmesg. I can see the error as output of the qemu/kvm command.

It's indeed hard to debug with so limit info... I still suggest you to fill a bug first.

And if you have time, please try the attached patch and update info.

--
regards
Yang, Sheng

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Reagrds,
Pier Luigi
-------- Original Message --------
Subject:        Re: unhandled vm exit: 0x80000021 vcpu_id 0
Date:   Fri, 3 Oct 2008 08:57:31 +0800
From:   Sheng Yang <[email protected]>
To:     [email protected] <[email protected]>
CC: [email protected], [email protected]
References: <25010601.1222985780681.JavaMail.root@ps1>
Quoted 3 lines · On Fri, Oct 03, 2008 at 12:16:20AM +0200, [email protected] wrote:
Hi,
I understand the "particularity" (checkpoint) of this case.
Hi Pier
Thanks for your understanding. :)
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Any way, in the attachment the dmesg log and the output of the
dmesg
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command.
But it's strange that I almost can't see anything correlated with kvm in the
log. If you built kvm as a modules(I suppose you did it because you tried
many versions), at least something like "load kvm module xxx" should appear(and Windows always trig a apic write error before Jan's patch make
them slience).
Is this the dmesg when the error was happening?
--
regards
Yang, Sheng
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thanks for your helpfulness.
Regards.
Quoted 1 line · Sheng Yang
On Mon, Sep 29, 2008 at 6:18 PM, [email protected] <p.
quida@tiscali.
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Hi,
I have successfully installed windows XP SP2 on kvm. After the installation I have launched the setup of "Checkpoint -
Pointsec"
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for
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the entire disk encryption.
Hi Pier
Can you issue a bug for this? But sadly "Checkpoint" is a
commercial
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software, we may not deal with it directly and immediately.
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The first step of installation was run successfully, but when the system reboots and "Pointsec" loads the initial code, the
following
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error happens:
======================================================================================
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unhandled vm exit: 0x80000021 vcpu_id 0
rax 0000000000000007 rbx 0000000000001490 rcx 0000000000000000
rdx
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00000000000019a0
rsi 0000000000000000 rdi 0000000000000000 rsp 0000000000000080
rbp
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00000000000096bf
r8 0000000000000000 r9 0000000000000000 r10 0000000000000000
r11
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0000000000000000
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000
r15
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0000000000000000
rip 000000000000002a rflags 00023202
cs 14a2 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 9 l 0 g 0 avl
0)
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ds 19a0 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl
0)
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es 1a31 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl
0)
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ss 1a29 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 1 l 0 g 0 avl
0)
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fs 0000 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl
0)
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gs 0000 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl
0)
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tr 0058 (00201ffa/0000ffff p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl
0)
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ldt 0000 (00000000/00000000 p 0 dpl 0 db 0 s 0 type 0 l 0 g 0
avl
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0)
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gdt 200000/1dd8
idt 201df0/188
cr0 80000019 cr2 0 cr3 1440000 cr4 0 cr8 0 efer 0
What's this... CR0.PE clear, CR0.PG set... And segment register
also
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strange. May be some real emulation wrong...
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Aborted
======================================================================================
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I am able to boot this system (image) using qemu (with kqemu
enabled
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for user code), but not using kvm.
I have also tried with the options: -no-kvm-irqchip -no-kvm-pit -
no-
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acpi without success. Only the -no-kvm option works.
I have tried these kvm releases: from 65 to 76; and these kernel (vanilla) releases: from 2.6.23.1 to 2.6.26.5.
Thanks for your patient...
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My computer is a Dell D630 equipped with Intel(R) Core(TM)2 Duo
CPU
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T7300 @ 2.00GHz
The HOST Linux distributions used are: Fedora 8/9 for i386, and
Fedora
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9 for x86_64.
Can you show dmesg as well? That's also helps.
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Signature · 2 lines

regards,
Yang, Sheng

libkvm/libkvm.c +1 -0

Index: kvm-76/libkvm/libkvm.c
===================================================================
@@ -843,6 +843,7 @@
 			fprintf(stderr, "unhandled vm exit: 0x%x vcpu_id %d\n",
 				(unsigned)run->hw.hardware_exit_reason, vcpu);
 			kvm_show_regs(kvm, vcpu);
+			kvm_show_code(kvm, vcpu);
 			abort();
 			break;
 		case KVM_EXIT_FAIL_ENTRY: