[Xen-devel] Status of save/migrate in xen-2.0.4?

[Evan Bigall <evan.bigall@xxxxxxxxxxx>]

I thought the conclusion was save/migrate was fixed in xen-2.0.4?

I downloaded and built from xen-2.0.4-src.tgz.gz.  But, when I try to migrate I see: 

        [root@xen1 scripts]# xm migrate xen1-vm2 10.20.8.20
        Error: Error: [Failure instance: Traceback: <type 'int'>, 1

The xfrd.log on the "from" host has: 

4202 [INF] XFRD> Accepted connection from 127.0.0.1:4018 on 2
4202 [INF] XFRD> Forked child pid=4205
4202 [INF] XFRD> Accepted connection from 127.0.0.1:4021 on 2
4207 [INF] XFRD> Xfr service for 127.0.0.1:4021
[DEBUG] Conn_init> flags=1
[DEBUG] Conn_init> write stream...
[DEBUG] stream_init>mode=w flags=1 compress=0
[DEBUG] stream_init> unbuffer...
[DEBUG] stream_init< err=0
[DEBUG] Conn_init> read stream...
[DEBUG] stream_init>mode=r flags=1 compress=0
[DEBUG] stream_init> unbuffer...
[DEBUG] stream_init< err=0
[DEBUG] Conn_sxpr>
(xfr.hello 1 0)[DEBUG] Conn_sxpr< err=0
[DEBUG] Conn_sxpr>
(xfr.migrate 50 "(domain (id 50) (name xen1-vm2) (memory 1023) (maxmem 1048576) (state 
-b---) (cpu 1) (cpu_time 12.165003084) (up_time 7795.94248009) (start_time 1108508108.79) 
(console (status listening) (id 12) (domain 50) (local_port 12) (remote_port 1) 
(console_port 9650)) (devices (vif (idx 0) (vif 0) (mac 00:eb:eb:00:01:02) (bridge xbr-i0) 
(evtchn 450 4) (index 0)) (vif (idx 1) (vif 1) (mac 00:eb:eb:01:01:02) (bridge xbr-i1) 
(evtchn 451 5) (index 1))) (config (vm (name xen1-vm2) (memory 1024) (cpu -1) (restart 
never) (image (linux (kernel /boot/vmlinuz-2.6.10-xenU) (ip 
:10.20.8.30:::xen1-vm2:eth0:dhcp) (root /dev/nfs) (args 'nfsroot=10.20.8.30:/xendom/xendom2 
ip=::::xen1-vm2:eth1: 4 VMID=2'))) (device (vif (mac 00:eb:eb:00:01:02) (bridge xbr-i0))) 
(device (vif (mac 00:eb:eb:01:01:02) (bridge xbr-i1))))))" 10.20.8.20 8002 0 0)[DEBUG] 
Conn_sxpr< err=0
[DEBUG] Conn_connect> addr=10.20.8.20:8002
[DEBUG] Conn_init> flags=1
[DEBUG] Conn_init> write stream...
[DEBUG] stream_init>mode=w flags=1 compress=0
[DEBUG] stream_init> unbuffer...
[DEBUG] stream_init< err=0
[DEBUG] Conn_init> read stream...
[DEBUG] stream_init>mode=r flags=1 compress=0
[DEBUG] stream_init> unbuffer...
[DEBUG] stream_init< err=0
[DEBUG] Conn_sxpr>
(xfr.err 0)[DEBUG] Conn_sxpr< err=0

[1108515904.742394] xc_linux_save start 50

xc_linux_save start 50
Frame # in pfn-to-mfn frame list is not in pseudophys
Frame # in pfn-to-mfn frame list is not in pseudophys
4207 [WRN] XFRD> Transfer errors:
4207 [WRN] XFRD> state=XFR_STATE    err=1
4207 [INF] XFRD> Xfr service err=1

I thought for sure this was the error someone said was fixed now?

Strace on xfrd doesn't seem to help.

I think the important bit of the strace output is:

[pid  4211] write(4, "(xfr.xfr 50)", 12) = 12
[pid  4211] open("/proc/xen/privcmd", O_RDWR) = 5
[pid  4211] gettimeofday({1108515989, 659231}, NULL) = 0
[pid  4211] write(1, "4209 [INF] XFRD> Accepted connec"..., 1838) = 1838
[pid  4211] mlock(0xbfffe6c0, 2516)     = 0
[pid  4211] mlock(0xbfffb570, 80)       = 0
[pid  4211] ioctl(5, SNDCTL_DSP_RESET, 0xbfffb550) = 0
[pid  4211] munlock(0xbfffb570, 80)     = 0
[pid  4211] mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 5, 0) = 0xb7fe9000
[pid  4211] ioctl(5, SNDCTL_DSP_SPEED or SOUND_PCM_READ_RATE, 0xbfffb5a0) = 0
[pid  4211] mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 5, 0) = 0xb7fe8000
[pid  4211] ioctl(5, SNDCTL_DSP_SPEED or SOUND_PCM_READ_RATE, 0xbfffb5a0) = 0
[pid  4211] mmap2(NULL, 1048576, PROT_READ, MAP_SHARED, 5, 0) = 0xb7c00000
[pid  4211] ioctl(5, SNDCTL_DSP_STEREO, 0xbfffb5a0) = 0
[pid  4211] ioctl(5, SNDCTL_DSP_GETBLKSIZE, 0xbfffb5d4) = 0
[pid  4211] mmap2(NULL, 4194304, PROT_READ, MAP_SHARED, 5, 0) = 0xb7800000
[pid  4211] ioctl(5, SNDCTL_DSP_SPEED or SOUND_PCM_READ_RATE, 0xbfffb5a0) = 0
[pid  4211] write(1, "Frame # in pfn-to-mfn frame list"..., 54) = 54

/Evan




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