http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=734
Summary: xm restore fails to restart the guest
Product: Xen
Version: 3.0.2
Platform: x86-64
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Tools
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: twh25@xxxxxxxxx
I have a happily running guest which I can successfully suspend with 'xm save'.
However, when I try to 'xm restore' from the saved file, the domain does not
get successfully recreated:
[root@localhost ~]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 507 2 r----- 34.1
pool-0-1-xeno.cl.cam.ac.uk-session-8 1 64 1 -b---- 4.0
[root@localhost ~]# xm save 1 session-8.chk
[root@localhost ~]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 507 2 r----- 36.1
[root@localhost ~]# xm restore session-8.chk
[root@localhost ~]# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 507 2 r----- 39.0
'xm log' shows:
[2006-08-10 15:44:25 xend] DEBUG (XendCheckpoint:80) [xc_save]:
/usr/lib64/xen/bin/xc_save 10 17 1 0 0 0
[2006-08-10 15:44:25 xend] DEBUG (XendCheckpoint:200) suspend
[2006-08-10 15:44:25 xend] DEBUG (XendCheckpoint:83) In saveInputHandler
suspend
[2006-08-10 15:44:25 xend] DEBUG (XendCheckpoint:85) Suspending 1 ...
[2006-08-10 15:44:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:877)
XendDomainInfo.handleShutdownWatch
[2006-08-10 15:44:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:877)
XendDomainInfo.handleShutdownWatch
[2006-08-10 15:44:25 xend.XendDomainInfo] INFO (XendDomainInfo:836) Domain has
shutdown: name=migrating-pool-0-1-xeno.cl.cam.ac.uk-session-8 id=1
reason=suspend.
[2006-08-10 15:44:25 xend] INFO (XendCheckpoint:88) Domain 1 suspended.
[2006-08-10 15:44:25 xend] DEBUG (XendCheckpoint:91) Written done
[2006-08-10 15:44:25 xend] ERROR (XendCheckpoint:227) Had 0 unexplained entries
in p2m table
1: sent 16376, skipped 0, delta 305ms, dom0 97%, target 0%, sent 1759Mb/s,
dirtied 0Mb/s 0 pages
[2006-08-10 15:44:25 xend] ERROR (XendCheckpoint:227) Total pages sent= 16376
(0.89x)
[2006-08-10 15:44:25 xend] ERROR (XendCheckpoint:227) (of which 0 were fixups)
[2006-08-10 15:44:25 xend] ERROR (XendCheckpoint:227) All memory is saved
[2006-08-10 15:44:25 xend] ERROR (XendCheckpoint:227) Save exit rc=0
[2006-08-10 15:44:25 xend.XendDomainInfo] DEBUG (XendDomainInfo:1335)
XendDomainInfo.destroyDomain(1)
[2006-08-10 15:44:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:253)
XendDomainInfo.restore([\047domain\047, [\047domid\047, \0471\047],
[\047uuid\047, \0477d3227c5-b252-6151-f41e-31d423f9a2dc\047], [\047ssidref\047,
\0470\047], [\047vcpus\047, \0471\047], [\047vcpu_avail\047, \0471\047],
[\047cpu_weight\047, \0471.0\047], [\047memory\047, \04764\047],
[\047maxmem\047, \04764\047], [\047name\047,
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047], [\047on_poweroff\047,
\047destroy\047], [\047on_reboot\047, \047restart\047], [\047on_crash\047,
\047destroy\047], [\047image\047, [\047linux\047, [\047kernel\047,
\047/boot/vmlinuz-2.6.12.6-xenU\047], [\047ip\047,
\04710.0.0.2:1.2.3.4:10.0.0.1:255.0.0.0:xeno:eth0:off\047], [\047root\047,
\047/dev/sda1\047], [\047args\047, \047ro\047]]], [\047device\047,
[\047vif\047, [\047backend\047, \0470\047], [\047script\047,
\047vif-bridge\047], [\047bridge\047, \047natbr0\047], [\047mac\047,
\04700:16:3e:0e:27:13\047]]], [\047device\047, [\047vbd\047, [\047backend\047,
\0470\047], [\047dev\047, \047sda1\047], [\047uname\047,
\047phy:mapper/session-8\047], [\047mode\047, \047rw\047]]], [\047device\047,
[\047vbd\047, [\047backend\047, \0470\047], [\047dev\047, \047sda2\047],
[\047uname\047, \047file:/xeno/empty-files/empty-session-8\047], [\047mode\047,
\047w\047]]], [\047state\047, \047-b----\047], [\047shutdown_reason\047,
\047poweroff\047], [\047cpu_time\047, \0474.005070431\047],
[\047online_vcpus\047, \0471\047], [\047up_time\047, \04756.9114718437\047],
[\047start_time\047, \0471155221008.17\047], [\047store_mfn\047,
\0471008725\047], [\047console_mfn\047, \0471008724\047]])
[2006-08-10 15:44:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:284)
parseConfig: config is [\047domain\047, [\047domid\047, \0471\047],
[\047uuid\047, \0477d3227c5-b252-6151-f41e-31d423f9a2dc\047], [\047ssidref\047,
\0470\047], [\047vcpus\047, \0471\047], [\047vcpu_avail\047, \0471\047],
[\047cpu_weight\047, \0471.0\047], [\047memory\047, \04764\047],
[\047maxmem\047, \04764\047], [\047name\047,
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047], [\047on_poweroff\047,
\047destroy\047], [\047on_reboot\047, \047restart\047], [\047on_crash\047,
\047destroy\047], [\047image\047, [\047linux\047, [\047kernel\047,
\047/boot/vmlinuz-2.6.12.6-xenU\047], [\047ip\047,
\04710.0.0.2:1.2.3.4:10.0.0.1:255.0.0.0:xeno:eth0:off\047], [\047root\047,
\047/dev/sda1\047], [\047args\047, \047ro\047]]], [\047device\047,
[\047vif\047, [\047backend\047, \0470\047], [\047script\047,
\047vif-bridge\047], [\047bridge\047, \047natbr0\047], [\047mac\047,
\04700:16:3e:0e:27:13\047]]], [\047device\047, [\047vbd\047, [\047backend\047,
\0470\047], [\047dev\047, \047sda1\047], [\047uname\047,
\047phy:mapper/session-8\047], [\047mode\047, \047rw\047]]], [\047device\047,
[\047vbd\047, [\047backend\047, \0470\047], [\047dev\047, \047sda2\047],
[\047uname\047, \047file:/xeno/empty-files/empty-session-8\047], [\047mode\047,
\047w\047]]], [\047state\047, \047-b----\047], [\047shutdown_reason\047,
\047poweroff\047], [\047cpu_time\047, \0474.005070431\047],
[\047online_vcpus\047, \0471\047], [\047up_time\047, \04756.9114718437\047],
[\047start_time\047, \0471155221008.17\047], [\047store_mfn\047,
\0471008725\047], [\047console_mfn\047, \0471008724\047]]
[2006-08-10 15:44:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:380)
parseConfig: result is {\047ssidref\047: 0, \047uuid\047:
\0477d3227c5-b252-6151-f41e-31d423f9a2dc\047, \047on_crash\047:
\047destroy\047, \047on_reboot\047: \047restart\047, \047image\047:
[\047linux\047, [\047kernel\047, \047/boot/vmlinuz-2.6.12.6-xenU\047],
[\047ip\047, \04710.0.0.2:1.2.3.4:10.0.0.1:255.0.0.0:xeno:eth0:off\047],
[\047root\047, \047/dev/sda1\047], [\047args\047, \047ro\047]],
\047on_poweroff\047: \047destroy\047, \047cpus\047: None, \047name\047:
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047, \047backend\047: [],
\047vcpus\047: 1, \047cpu_weight\047: 1.0, \047vcpu_avail\047: 1,
\047memory\047: 64, \047device\047: [(\047vif\047, [\047vif\047,
[\047backend\047, \0470\047], [\047script\047, \047vif-bridge\047],
[\047bridge\047, \047natbr0\047], [\047mac\047, \04700:16:3e:0e:27:13\047]]),
(\047vbd\047, [\047vbd\047, [\047backend\047, \0470\047], [\047dev\047,
\047sda1\047], [\047uname\047, \047phy:mapper/session-8\047], [\047mode\047,
\047rw\047]]), (\047vbd\047, [\047vbd\047, [\047backend\047, \0470\047],
[\047dev\047, \047sda2\047], [\047uname\047,
\047file:/xeno/empty-files/empty-session-8\047], [\047mode\047, \047w\047]])],
\047bootloader\047: None, \047cpu\047: None, \047maxmem\047: 64}
[2006-08-10 15:44:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:1164)
XendDomainInfo.construct: None 0
[2006-08-10 15:44:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:671) Storing VM
details: {\047ssidref\047: \0470\047, \047uuid\047:
\0477d3227c5-b252-6151-f41e-31d423f9a2dc\047, \047on_reboot\047:
\047restart\047, \047image\047: \047(linux (kernel /boot/vmlinuz-2.6.12.6-xenU)
(ip 10.0.0.2:1.2.3.4:10.0.0.1:255.0.0.0:xeno:eth0:off) (root /dev/sda1) (args
ro))\047, \047on_poweroff\047: \047destroy\047, \047name\047:
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047, \047vcpus\047: \0471\047,
\047vcpu_avail\047: \0471\047, \047memory\047: \04764\047, \047on_crash\047:
\047destroy\047, \047maxmem\047: \04764\047}
[2006-08-10 15:44:53 xend] DEBUG (DevController:103) DevController: writing
{\047backend-id\047: \0470\047, \047mac\047: \04700:16:3e:0e:27:13\047,
\047handle\047: \0470\047, \047state\047: \0471\047, \047backend\047:
\047/local/domain/0/backend/vif/2/0\047} to /local/domain/2/device/vif/0.
[2006-08-10 15:44:53 xend] DEBUG (DevController:105) DevController: writing
{\047bridge\047: \047natbr0\047, \047domain\047:
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047, \047handle\047: \0470\047,
\047script\047: \047/etc/xen/scripts/vif-bridge\047, \047state\047: \0471\047,
\047frontend\047: \047/local/domain/2/device/vif/0\047, \047mac\047:
\04700:16:3e:0e:27:13\047, \047frontend-id\047: \0472\047} to
/local/domain/0/backend/vif/2/0.
[2006-08-10 15:44:53 xend] DEBUG (DevController:103) DevController: writing
{\047virtual-device\047: \0472049\047, \047backend-id\047: \0470\047,
\047state\047: \0471\047, \047backend\047:
\047/local/domain/0/backend/vbd/2/2049\047} to /local/domain/2/device/vbd/2049.
[2006-08-10 15:44:53 xend] DEBUG (DevController:105) DevController: writing
{\047domain\047: \047pool-0-1-xeno.cl.cam.ac.uk-session-8\047,
\047frontend\047: \047/local/domain/2/device/vbd/2049\047, \047dev\047:
\047sda1\047, \047state\047: \0471\047, \047params\047:
\047mapper/session-8\047, \047mode\047: \047rw\047, \047frontend-id\047:
\0472\047, \047type\047: \047phy\047} to /local/domain/0/backend/vbd/2/2049.
[2006-08-10 15:44:53 xend] DEBUG (DevController:103) DevController: writing
{\047virtual-device\047: \0472050\047, \047backend-id\047: \0470\047,
\047state\047: \0471\047, \047backend\047:
\047/local/domain/0/backend/vbd/2/2050\047} to /local/domain/2/device/vbd/2050.
[2006-08-10 15:44:53 xend] DEBUG (DevController:105) DevController: writing
{\047domain\047: \047pool-0-1-xeno.cl.cam.ac.uk-session-8\047,
\047frontend\047: \047/local/domain/2/device/vbd/2050\047, \047dev\047:
\047sda2\047, \047state\047: \0471\047, \047params\047:
\047/xeno/empty-files/empty-session-8\047, \047mode\047: \047w\047,
\047frontend-id\047: \0472\047, \047type\047: \047file\047} to
/local/domain/0/backend/vbd/2/2050.
[2006-08-10 15:44:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) Storing
domain details: {\047console/port\047: \0472\047, \047name\047:
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047, \047console/limit\047:
\0471048576\047, \047vm\047: \047/vm/7d3227c5-b252-6151-f41e-31d423f9a2dc\047,
\047domid\047: \0472\047, \047cpu/0/availability\047: \047online\047,
\047memory/target\047: \04765536\047, \047store/port\047: \0471\047}
[2006-08-10 15:44:53 xend] DEBUG (balloon:126) Balloon: free 3462; need 73;
done.
[2006-08-10 15:44:53 xend] DEBUG (XendCheckpoint:148) [xc_restore]:
/usr/lib64/xen/bin/xc_restore 10 17 2 18432 1 2
[2006-08-10 15:44:53 xend] ERROR (XendCheckpoint:227) xc_linux_restore start:
max_pfn = 4800
[2006-08-10 15:44:53 xend] ERROR (XendCheckpoint:227) Increased domain
reservation by 12000 KB
[2006-08-10 15:44:53 xend] ERROR (XendCheckpoint:227) Reloading memory pages:
0%
[2006-08-10 15:44:54 xend] ERROR (XendCheckpoint:227) Received all pages (0
races)
[2006-08-10 15:44:54 xend] ERROR (XendCheckpoint:2100%
[2006-08-10 15:44:54 xend] ERROR (XendCheckpoint:227) Memory reloaded.
[2006-08-10 15:44:54 xend] ERROR (XendCheckpoint:227) Decreased reservation by
2056 pages
[2006-08-10 15:44:54 xend] ERROR (XendCheckpoint:227) Domain ready to be built.
[2006-08-10 15:44:54 xend] DEBUG (XendCheckpoint:200) store-mfn 1031765
[2006-08-10 15:44:54 xend] DEBUG (XendCheckpoint:200) console-mfn 1031764
[2006-08-10 15:44:54 xend] ERROR (XendCheckpoint:227) Restore exit with rc=0
[2006-08-10 15:44:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:648)
XendDomainInfo.completeRestore
[2006-08-10 15:44:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) Storing
domain details: {\047console/ring-ref\047: \0471031764\047,
\047console/port\047: \0472\047, \047name\047:
\047pool-0-1-xeno.cl.cam.ac.uk-session-8\047, \047console/limit\047:
\0471048576\047, \047vm\047: \047/vm/7d3227c5-b252-6151-f41e-31d423f9a2dc\047,
\047domid\047: \0472\047, \047cpu/0/availability\047: \047online\047,
\047memory/target\047: \04765536\047, \047store/ring-ref\047: \0471031765\047,
\047store/port\047: \0471\047}
[2006-08-10 15:44:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:658)
XendDomainInfo.completeRestore done
[2006-08-10 15:44:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:877)
XendDomainInfo.handleShutdownWatch
[2006-08-10 15:44:54 xend.XendDomainInfo] WARNING (XendDomainInfo:819) Domain
has crashed: name=pool-0-1-xeno.cl.cam.ac.uk-session-8 id=2.
[2006-08-10 15:44:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:1327)
XendDomainInfo.destroy: domid=2
[2006-08-10 15:44:54 xend.XendDomainInfo] DEBUG (XendDomainInfo:1335)
XendDomainInfo.destroyDomain(2)
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