http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1309
Summary: guest OS cannot be restored after saving.
Product: Xen
Version: unstable
Platform: All
OS/Version: All
Status: NEW
Severity: critical
Priority: P1
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: haicheng.li@xxxxxxxxx
Environment:
------------
Service OS (ia32/ia32e/IA64): ia32e,ia32
Guest OS (ia32/ia32e/IA64): ia32e,ia32
Change Set: xen 3.3.0 rc1 #Cset 18145
Hardware: broadwater
Bug detailed description:
--------------------------
I cannot see the window of guest OS after I restored it or migrated it to
localhost.I tried it on ia32e and ia32p but I got the same result.
"xm li" after restoring:
Name ID Mem VCPUs State Time(s)
Domain-0 0 446 2 r----- 680.6
VHREL5-ia32e 38 256 1 ------ 0.0
Reproduce steps:
----------------
1) install xen 3.3.0 rc1 #Cset 18145
2) reboot Dom0 and create guest OS with both ia32e and ia32
3) save the state of guest OS and restore it with save file
Current result:
----------------
guest OS cannot be restored and I can't connect to guest OS after I migrate it
to localhost.
Expected result:
----------------
I can see the window of guest OS after it is restored and migrated to
localhost.
Basic root-causing log:
----------------------
Qemu log show:
domid: 48
qemu: the number of cpus is 1
config qemu network with xen bridge for tap48.0 xenbr0
Watching /local/domain/0/device-model/48/logdirty/next-active
Watching /local/domain/0/device-model/48/command
char device redirected to /dev/pts/4
qemu_map_cache_init nr_buckets = 10000 size 3145728
shared page at pfn fffe
buffered io page at pfn fffc
Time offset set 0
Register xen platform.
Done register platform.
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
gpe_en_write: addr=0x1f6c, val=0x0.
gpe_sts_write: addr=0x1f68, val=0xff.
gpe_en_write: addr=0x1f6d, val=0x0.
gpe_sts_write: addr=0x1f69, val=0xff.
gpe_en_write: addr=0x1f6e, val=0x0.
gpe_sts_write: addr=0x1f6a, val=0xff.
gpe_en_write: addr=0x1f6f, val=0x0.
gpe_sts_write: addr=0x1f6b, val=0xff.
gpe_en_write: addr=0x1f6c, val=0x8.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
ACPI PCI hotplug: read addr=0x10c1, val=0x0.
ACPI PCI hotplug: read addr=0x10c2, val=0x0.
xenstore_process_logdirty_event: key=000000006b8b4567 size=131072
Log-dirty: mapped segment at 0x2aaaac878000
Triggered log-dirty buffer switch
shutdown requested in cpu_handle_ioreq
Issued domain 48 poweroff
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