[Xen-devel] xl migrate regression in staging

[Olaf Hering <olaf@xxxxxxxxx>]

Migration from staging-4.5.3f802a5 to staging-4-7.3dac42f fails with a HVM 
guest:


root@anonymi:~ # xl migrate domU host
migration target: Ready to receive domain.
Saving to migration stream new xl format (info 0x1/0x0/2677)
xc: error: error polling suspend notification channel: -1: Internal error
Loading new save file <incoming migration stream> (new xl fmt info 0x1/0x0/2677)
 Savefile contains xl domain config in JSON format
Parsing config from <saved>
libxl: error: libxl_stream_read.c:327:stream_header_done: Invalid ident: 
expected 0x4c6962786c466d74, got 0x01f00f0000000000
libxl: error: libxl_utils.c:430:libxl_read_exactly: file/stream truncated 
reading ipc msg header from domain 1 save/restore helper stdout pipe
libxl: error: libxl_exec.c:129:libxl_report_child_exitstatus: domain 1 
save/restore helper [-1] died due to fatal signal Broken pipe
libxl: error: libxl_dom.c:2036:remus_teardown_done: Remus: failed to teardown 
device for guest with domid 1, rc -3
migration sender: libxl_domain_suspend failed (rc=-3)
libxl: info: libxl_exec.c:118:libxl_report_child_exitstatus: migration 
transport process [2000] exited with error status 255
Migration failed, resuming at sender.
xc: error: Dom 1 not suspended: (shutdown 0, reason 255): Internal error
libxl: error: libxl.c:515:libxl__domain_resume: xc_domain_resume failed for 
domain 1: Invalid argument


I think this regression was introduced in the last 3-4 weeks.

Olaf

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