[Xen-bugs] [Bug 1094] New: kernel BUG at include/asm/mach-xen/asm/maddr.h:34!

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1094

           Summary: kernel BUG at include/asm/mach-xen/asm/maddr.h:34!
           Product: Xen
           Version: unstable
          Platform: x86
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: karl@xxxxxxxxxxxxx


I have openSUSE 10.3 installed in domain 0 and in a guest domain. Xen version
is 3.1.0_15042. When I do "xm save 1 statefile" the command does not return and
the guest domain continues to run. About 1.6 kB is written to statefile. The
following appears in dmesg on the guest domain:

Setting mem allocation to 65536 kiB
------------[ cut here ]------------
kernel BUG at include/asm/mach-xen/asm/maddr.h:34!
invalid opcode: 0000 [#1]
SMP 
last sysfs file: /block/xvda/size
Modules linked in: iptable_filter ip_tables ip6_tables x_tables 8250
serial_core loop dm_mod joydev ext3 jbd mbcache xenblk xennet
CPU:    0
EIP:    0061:[<c0110891>]    Tainted: G      N VLI
EFLAGS: 00010006   (2.6.22.5-31-xen #1)
EIP is at pgd_walk+0xe1/0x19a
eax: 00055555   ebx: 55555000   ecx: 55555061   edx: 00004800
esi: 00000001   edi: c124a000   ebp: c124a000   esp: c3721f4c
ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0069
Process suspend (pid: 1821, ti=c3720000 task=c057dab0 task.ti=c3720000)
Stack: 00000000 00000000 00000061 0124a000 00000001 00000000 00000000 c0110b0e 
       c1024940 c0111450 c3721fc4 c022a8be c022abf6 c057dab0 e5fa2c80 000001d3 
       00000000 c057dbd4 c1094880 00000000 c0969c80 c0a17f4c 00000003 00000001 
Call Trace:
 [<c0110b0e>] __pgd_pin+0x17/0x36
 [<c0111450>] mm_pin_all+0x32/0x4a
 [<c022a8be>] xen_suspend+0x0/0x30
 [<c022abf6>] take_machine_down+0x7e/0x382
 [<c022a8be>] xen_suspend+0x0/0x30
 [<c022af85>] __xen_suspend+0x8b/0xba
 [<c022a8cb>] xen_suspend+0xd/0x30
 [<c012bff6>] kthread+0x38/0x5e
 [<c012bfbe>] kthread+0x0/0x5e
 [<c0104b43>] kernel_thread_helper+0x7/0x10
 =======================
Code: 24 08 c1 fb 05 c1 e3 0c 09 d9 f6 c1 01 74 3b 89 c8 c1 e8 0c 80 3d 5a 2b
36 c0 00 75 22 8b 15 80 37 3f c0 85 d2 74 08 39 d0 72 04 <0f> 0b eb fe c1 e0 02
03 05 a4 66 39 c0 8b 00 25 ff ff ff 7f c1 
EIP: [<c0110891>] pgd_walk+0xe1/0x19a SS:ESP 0069:c3721f4c


xend.log on host OS:

[2007-10-26 13:40:49 3656] DEBUG (XendDomainInfo:916) Storing domain details:
{'console/ring-ref': '65765', 'image/entry': '3222274048', 'console/port': '2',
'store/ring-ref': '65766', 'image/loader': 'generic', 'vm':
'/vm/5027abe9-6345-3df2-c0ba-c92e0bdaa41f',
'control/platform-feature-multiprocessor-suspend': '1', 'image/hv-start-low':
'4227858432', 'image/guest-os': 'linux',
'image/features/writable-descriptor-tables': '1', 'image/virt-base':
'3221225472', 'memory/target': '65536', 'image/guest-version': '2.6',
'image/features/supervisor-mode-kernel': '1', 'image/pae-mode': 'no',
'console/limit': '1048576', 'image/paddr-offset': '3221225472',
'image/hypercall-page': '3222278144', 'image/suspend-cancel': '1',
'cpu/0/availability': 'online', 'image/features/pae-pgdir-above-4gb': '1',
'image/features/writable-page-tables': '1',
'image/features/auto-translated-physmap': '1', 'name':
'migrating-virtuellaopensuse', 'domid': '1', 'image/xen-version': 'xen-3.0',
'store/port': '1'}
[2007-10-26 13:40:49 3656] DEBUG (XendCheckpoint:88) [xc_save]:
/usr/lib/xen/bin/xc_save 23 1 0 0 0
[2007-10-26 13:40:49 3656] DEBUG (XendCheckpoint:320) suspend
[2007-10-26 13:40:49 3656] DEBUG (XendCheckpoint:91) In saveInputHandler
suspend
[2007-10-26 13:40:49 3656] DEBUG (XendCheckpoint:93) Suspending 1 ...
[2007-10-26 13:40:49 3656] DEBUG (XendDomainInfo:443)
XendDomainInfo.shutdown(suspend)
[2007-10-26 13:40:49 3656] DEBUG (XendDomainInfo:1000)
XendDomainInfo.handleShutdownWatch
[2007-10-26 13:40:49 3656] DEBUG (XendDomainInfo:1000)
XendDomainInfo.handleShutdownWatch


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