[ kvm-Bugs-1985977 ] Guests crash while rebooting

["SourceForge.net" <noreply@sourceforge.net>]

Bugs item #1985977, was opened at 2008-06-06 10:42
Message generated for change (Settings changed) made by yunfeng
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1985977&group_id=180599

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Category: None
Group: None
Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: yunfeng (yunfeng)
Assigned to: Nobody/Anonymous (nobody)
Summary: Guests crash while rebooting 

Initial Comment:
Environment:
------------
Commits:
ff5bdac4be0230e0bb33e4208ac0a91343c72929-eb2fd67cbecdb573f908697ed41b81ee312372bd
Hardware: woodcrest

Bug detailed description:
--------------------------
Windows and Linux guests can not reboot on ia32pae and ia32e platform, guests
crashed whilerebooting. 

There's messages on console:
[root@vt-dp8 ~]#qemu-system-x86_64 -m 256 -monitor pty -net
nic,macaddr=00:16:3e:17:b9:e3,model=rtl8139 -net tar/fc6
char device redirected to /dev/pts/4
unhandled vm exit: 0x21 vcpu_id 0
rax 0000000000000011 rbx 000000000000d8d1 rcx 000000000002c900 rdx
0000000000000700
rsi 000000000000009d rdi 0000000000000500 rsp 000000000000fffa rbp
0000000000008271
r8  0000000000000000 r9  0000000000000000 r10 0000000000000000 r11
0000000000000000
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15
0000000000000000
rip 000000000000b167 rflags 00010006
cs f000 (000f0000/0000ffff p 1 dpl 0 db 0 s 1 type b l 0 g 0 avl 0)
ds 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0)
es c000 (000c0000/0000ffff p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0)
ss 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0)
fs 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0)
gs 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0)
tr 0040 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 0 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 fb1f2/30
idt f0000/0
cr0 11 cr2 0 cr3 0 cr4 0 cr8 0 efer 0
Aborted



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Comment By: yunfeng (yunfeng)
Date: 2008-06-16 10:33

Message:
Logged In: YES 
user_id=1283543
Originator: YES

This issue has been fixed.

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Comment By: Avi Kivity (avik)
Date: 2008-06-12 21:26

Message:
Logged In: YES 
user_id=539971
Originator: NO

Okay, I reverted the patch.

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Comment By: yunfeng (yunfeng)
Date: 2008-06-11 14:42

Message:
Logged In: YES 
user_id=1283543
Originator: YES

This patch can fix this issue.
After reverted pmode transaition rebooting works again.


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Comment By: Avi Kivity (avik)
Date: 2008-06-10 00:10

Message:
Logged In: YES 
user_id=539971
Originator: NO

Please try the attached patch (apply to kernel tree)
File Added: revert-pmode-transition.patch

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1985977&group_id=180599