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From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xen.org
Subject: live migrating hvm from 4.4 to 4.7 fails in ioreq server
Date: Wed, 11 May 2016 14:18:16 +0200	[thread overview]
Message-ID: <20160511121816.GA2789@aepfle.de> (raw)

Migrating a HVM guest from staging-4.4 to staging fails:

# cat /var/log/xen/qemu-dm-fv-x64-sles12sp1-clean--incoming.log
char device redirected to /dev/pts/3 (label serial0)
xen: ioreq server create: Cannot allocate memory
qemu-system-x86_64: xen hardware virtual machine initialisation failed

Looks like hvm_alloc_ioreq_gmfn finds no bit in
d->arch.hvm_domain.ioreq_gmfn.mask.  Is there a slim change that 4.4 does not
know about HVM_PARAM_NR_IOREQ_SERVER_PAGES, and as a result 4.7 fails to
configure the guest properly?

domU.cfg looks like this:

name="x"
memory=256
serial="pty"
builder="hvm"
boot="cd"
disk=[
        'file:/disk0.raw,hda,w',
        'file:/some.iso,hdc:cdrom,r',
]
vif=[
        'bridge=br0'
]
keymap="de"
vfb = [
        'type=vnc,vncunused=1,keymap=de'
]
usb=1
usbdevice='tablet'


Olaf

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             reply	other threads:[~2016-05-11 12:18 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-11 12:18 Olaf Hering [this message]
2016-05-11 12:22 ` live migrating hvm from 4.4 to 4.7 fails in ioreq server Andrew Cooper
2016-05-11 12:30   ` Olaf Hering
2016-05-11 13:07     ` Olaf Hering
2016-05-12 10:53       ` Wei Liu
2016-05-11 12:38   ` Paul Durrant
2016-05-12 10:55     ` Wei Liu
2016-05-12 12:39       ` Paul Durrant
2016-05-12 13:01         ` Wei Liu
2016-05-12 13:03           ` Paul Durrant
2016-05-12 13:18             ` Olaf Hering
2016-05-12 14:10             ` Wei Liu
2016-05-12 14:13               ` Paul Durrant
2016-05-25 20:57                 ` Konrad Rzeszutek Wilk
2016-05-26  8:30                   ` Paul Durrant
2016-06-03 20:07                     ` Konrad Rzeszutek Wilk
2016-07-26 15:45                     ` Olaf Hering
2016-07-26 15:48                       ` Paul Durrant
2016-07-29 10:11                         ` Paul Durrant
2016-07-29 10:34                           ` Paul Durrant
2016-07-29 13:10                             ` Olaf Hering
2016-07-29 13:22                               ` Paul Durrant
2016-05-12 13:38           ` Stefano Stabellini

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