[Xen-users] Remus: No support for network buffering

[Harpreet Singh Chawla <hsc.10oct@xxxxxxxxx>]

I have been trying to run remus on Xen 4.6

I have successfully done basic migration to and fro from one server to another without any issues.

But when I tried to run remus with networking enabled and disk buffering disabled,

```
sudo xl remus -F -d linux-1 root@<server_domain_name>

```

I get the following error message:

```
migration target: Ready to receive domain.
Saving to migration stream new xl format (info 0x3/0x0/1219)
libxl: error: libxl.c:889:libxl__remus_setup: Remus: No support for network buffering
Remus: Backup failed? resuming domain at primary.
xc: error: Dom 1 not suspended: (shutdown 0, reason 255): Internal error
libxl: error: libxl_dom_suspend.c:409:libxl__domain_resume: xc_domain_resume failed for domain 1: Invalid argument
Loading new save file <incoming migration stream> (new xl fmt info 0x3/0x0/1219)
ÂSavefile contains xl domain config in JSON format
Parsing config from <saved>
libxl: error: libxl_stream_read.c:298:stream_header_done: Invalid ident: expected 0x4c6962786c466d74, got 0x0000000000000000

```

I don't really need disk buffering as of now, and in some prior thread of Migration Failure I read the feature doesn't work well in xen 4.6 (am not sure if it has been fixed), but I need network buffering.

I can run the remus feature using the -n option for disabling network buffering, but not with with network buffering enabled.

Anyone has a solution for fixing this?

Thanks

Harpreet

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