[ kvm-Bugs-1791448 ] [KVM-37]guest crashes when booting with 4 vcpus

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Bugs item #1791448, was opened at 2007-09-10 16:54
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: yunfeng (yunfeng)
Assigned to: Nobody/Anonymous (nobody)
Summary: [KVM-37]guest crashes when booting with 4 vcpus

Initial Comment:
Environment:
------------
HOST (ia32/ia32e/IA64): RHEL5+2.6.22 kernel,64bit
GUEST (ia32/ia32e/IA64): RHEL5 64bit
COMMIT: kvm-37
Hardware: harwitch/paxvile 16LPs



Bug detailed description:
--------------------------
KVM-37 cannot boot smp linux guest with 4 vcpus.
The guest crashed immediately after executed the qemu command.
If booting with 2 vcpus, the guest could be booted up but could only see one cpu info in the linux 
guests.
[root@vt-dp5 xvs]# /usr/kvm/bin/qemu-system-x86_64 -m 1024 -net 
nic,macaddr=00:11:22:33:44:55,model=rtl8139 -net tap,script=/etc/kvm/qemu-ifup -hda /dev/sda -smp 4

exception 6 (0)
rax 0000000000000000 rbx 0000000000000000 rcx 0000000000000000 rdx 0000000000000600
rsi 0000000000000000 rdi 0000000000000000 rsp 000000000000fffe rbp 0000000000000000
r8  0000000000000000 r9  0000000000000000 r10 0000000000000000 r11 0000000000000000
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 0000000000000000
rip 0000000000000003 rflags 00033082
cs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
ds 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
es 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
ss 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
fs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
tr 0000 (40850000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0)
gdt 0/ffff
idt 0/ffff
cr0 60000010 cr2 0 cr3 0 cr4 0 cr8 0 efer 0
code: 54 ff 00 --> f0 53 ff 00 f0 53 ff 00 f0 53 ff 00 f0 53 ff 00 f0 53 ff 00 f0 53 ff 00 f0 53 
ff 00 f0 a5 fe 00 f0 87 e9 00 f0 53 ff 00 f0 53 ff 00 f0 53 ff




Reproduce steps:
----------------


Current result:
----------------


Expected result:
----------------


Basic root-causing log:
----------------------


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