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[Xen-bugs] [Bug 267] (XEN) Domain 2 (vcpu#0) crashed on cpu#3:



http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=267





------- Additional Comments From dbarrera@xxxxxxxxxx  2005-10-20 16:58 -------
A higher level dissambly

x335b:/boot # ls -alt vmlinux-syms-2.6.12.5-xen0
-rw-r--r--  1 root 126 6233360 Oct 20 10:30 vmlinux-syms-2.6.12.5-xen0
x335b:/boot # objdump -d vmlinux-syms-2.6.12.5-xen0 | grep c01158
c01157d1:       75 4b                   jne    c011581e 
<convert_fxsr_to_user+0x18e>
c01157f8:       75 2e                   jne    c0115828 
<convert_fxsr_to_user+0x198>
c0115800:       85 d2                   test   %edx,%edx
c0115802:       75 24                   jne    c0115828 
<convert_fxsr_to_user+0x198>
c0115804:       0f b7 43 08             movzwl 0x8(%ebx),%eax
c0115808:       66 89 41 08             mov    %ax,0x8(%ecx)
c011580c:       85 d2                   test   %edx,%edx
c011580e:       75 18                   jne    c0115828 
<convert_fxsr_to_user+0x198>
c0115810:       46                      inc    %esi
c0115811:       83 c1 0a                add    $0xa,%ecx
c0115814:       83 c3 10                add    $0x10,%ebx
c0115817:       83 fe 07                cmp    $0x7,%esi
c011581a:       7e d4                   jle    c01157f0 
<convert_fxsr_to_user+0x160>
c011581c:       31 d2                   xor    %edx,%edx
c011581e:       83 c4 30                add    $0x30,%esp
c0115821:       89 d0                   mov    %edx,%eax
c0115823:       5b                      pop    %ebx
c0115824:       5e                      pop    %esi
c0115825:       5f                      pop    %edi
c0115826:       5d                      pop    %ebp
c0115827:       c3                      ret
c0115828:       ba 01 00 00 00          mov    $0x1,%edx
c011582d:       83 c4 30                add    $0x30,%esp
c0115830:       89 d0                   mov    %edx,%eax
c0115832:       5b                      pop    %ebx
c0115833:       5e                      pop    %esi
c0115834:       5f                      pop    %edi
c0115835:       5d                      pop    %ebp
c0115836:       c3                      ret
c0115837:       89 f6                   mov    %esi,%esi
c0115839:       8d bc 27 00 00 00 00    lea    0x0(%edi),%edi
c0115840 <convert_fxsr_from_user>:
c0115840:       56                      push   %esi
c0115841:       ba 1c 00 00 00          mov    $0x1c,%edx
c0115846:       53                      push   %ebx
c0115847:       83 ec 2c                sub    $0x2c,%esp
c011584a:       8b 74 24 3c             mov    0x3c(%esp),%esi
c011584e:       89 54 24 08             mov    %edx,0x8(%esp)
c0115852:       8d 44 24 0c             lea    0xc(%esp),%eax
c0115856:       8b 5c 24 38             mov    0x38(%esp),%ebx
c011585a:       89 04 24                mov    %eax,(%esp)
c011585d:       89 74 24 04             mov    %esi,0x4(%esp)
c0115861:       e8 1a 99 11 00          call   c022f180 <__copy_from_user_ll>
c0115866:       85 c0                   test   %eax,%eax
c0115868:       ba 01 00 00 00          mov    $0x1,%edx
c011586d:       0f 85 ab 00 00 00       jne    c011591e
<convert_fxsr_from_user+0xde>
c0115873:       8b 44 24 0c             mov    0xc(%esp),%eax
c0115877:       8d 4e 1c                lea    0x1c(%esi),%ecx
c011587a:       31 f6                   xor    %esi,%esi
c011587c:       66 89 03                mov    %ax,(%ebx)
c011587f:       8b 44 24 10             mov    0x10(%esp),%eax
c0115883:       66 89 43 02             mov    %ax,0x2(%ebx)
c0115887:       0f b7 44 24 14          movzwl 0x14(%esp),%eax
c011588c:       f7 d0                   not    %eax
c011588e:       89 c2                   mov    %eax,%edx
c0115890:       d1 ea                   shr    %edx
c0115892:       09 d0                   or     %edx,%eax
c0115894:       25 55 55 00 00          and    $0x5555,%eax
c0115899:       89 c2                   mov    %eax,%edx
c011589b:       d1 ea                   shr    %edx
c011589d:       09 d0                   or     %edx,%eax
c011589f:       25 33 33 00 00          and    $0x3333,%eax
c01158a4:       89 c2                   mov    %eax,%edx
c01158a6:       c1 ea 02                shr    $0x2,%edx
c01158a9:       09 d0                   or     %edx,%eax
c01158ab:       25 0f 0f 00 00          and    $0xf0f,%eax
c01158b0:       89 c2                   mov    %eax,%edx
c01158b2:       c1 ea 04                shr    $0x4,%edx
c01158b5:       09 d0                   or     %edx,%eax
c01158b7:       0f b6 c0                movzbl %al,%eax
c01158ba:       66 89 43 04             mov    %ax,0x4(%ebx)
c01158be:       8b 44 24 18             mov    0x18(%esp),%eax
c01158c2:       89 43 08                mov    %eax,0x8(%ebx)
c01158c5:       8b 44 24 1c             mov    0x1c(%esp),%eax
c01158c9:       89 c2                   mov    %eax,%edx
c01158cb:       c1 ea 10                shr    $0x10,%edx
c01158ce:       25 ff ff 00 00          and    $0xffff,%eax
c01158d3:       66 89 53 06             mov    %dx,0x6(%ebx)
c01158d7:       89 43 0c                mov    %eax,0xc(%ebx)
c01158da:       8b 44 24 20             mov    0x20(%esp),%eax
c01158de:       89 43 10                mov    %eax,0x10(%ebx)
c01158e1:       8b 44 24 24             mov    0x24(%esp),%eax
c01158e5:       89 43 14                mov    %eax,0x14(%ebx)
c01158e8:       83 c3 20                add    $0x20,%ebx
c01158eb:       90                      nop
c01158ec:       8d 74 26 00             lea    0x0(%esi),%esi
c01158f0:       31 d2                   xor    %edx,%edx
c01158f2:       8b 01                   mov    (%ecx),%eax
c01158f4:       89 03                   mov    %eax,(%ebx)
c01158f6:       85 d2                   test   %edx,%edx
c01158f8:       75 2c                   jne    c0115926
<convert_fxsr_from_user+0xe6>
c01158fa:       8b 41 04                mov    0x4(%ecx),%eax
c01158fd:       89 43 04                mov    %eax,0x4(%ebx)
c011591a:       7e d4                   jle    c01158f0
<convert_fxsr_from_user+0xb0>
c0115c07:       e8 34 fc ff ff          call   c0115840
<convert_fxsr_from_user>c0115d54:       e9 e7 fa ff ff          jmp    c0115840
<convert_fxsr_from_user>c04777d7:       e9 24 e0 c9 ff          jmp    c0115800
<convert_fxsr_to_user+0x170>
c04777e1:       e9 26 e0 c9 ff          jmp    c011580c 
<convert_fxsr_to_user+0x17c>
c04777ed:       e9 02 e1 c9 ff          jmp    c01158f4
<convert_fxsr_from_user+0xb4>
c04777f9:       e9 ff e0 c9 ff          jmp    c01158fd
<convert_fxsr_from_user+0xbd>


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