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Re: [Qemu-devel] (Another) 1.4.1 -> 1.5.0 migration failure


From: mdroth
Subject: Re: [Qemu-devel] (Another) 1.4.1 -> 1.5.0 migration failure
Date: Tue, 21 May 2013 11:55:56 -0500
User-agent: Mutt/1.5.21 (2010-09-15)

On Tue, May 21, 2013 at 12:33:38PM +0100, Nicholas Thomas wrote:
> Hi all,
> 
> Migrating from:
> 
> /opt/qemu-1.4.1/bin/qemu-system-x86_64 -M pc -watchdog i6300esb
> -watchdog-action reset [...] 
> 
> to:
> 
> /opt/qemu-1.5.0/bin/qemu-system-x86_64 -M pc-i440fx-1.4 -watchdog
> i6300esb -watchdog-action reset [...] 
> 
> I get: 
> 
> qemu: warning: error while loading state for instance 0x0 of device
> '0000:00:06.0/i6300esb_wdt'
> load of migration failed
> 
> Perhaps a similar issue to the network device one? I'm afraid I'm not
> sure how to debug these...

Doesn't look like it, here's a dump of the SaveStateEntry's (i just
added some debug statements in vmstate_register_with_alias_id):

verison: 1.4.1, se->idstr: timer, se->instance_id: 0
verison: 1.4.1, se->idstr: cpu_common, se->instance_id: 0
verison: 1.4.1, se->idstr: kvm-tpr-opt, se->instance_id: 0
verison: 1.4.1, se->idstr: apic, se->instance_id: 0
verison: 1.4.1, se->idstr: kvmclock, se->instance_id: 0
verison: 1.4.1, se->idstr: fw_cfg, se->instance_id: 0
verison: 1.4.1, se->idstr: PCIBUS, se->instance_id: 0
verison: 1.4.1, se->idstr: 0000:00:00.0/I440FX, se->instance_id: 0
verison: 1.4.1, se->idstr: 0000:00:01.0/PIIX3, se->instance_id: 0
verison: 1.4.1, se->idstr: i8259, se->instance_id: 0
verison: 1.4.1, se->idstr: i8259, se->instance_id: 1
verison: 1.4.1, se->idstr: ioapic, se->instance_id: 0
verison: 1.4.1, se->idstr: 0000:00:02.0/vga, se->instance_id: 0
verison: 1.4.1, se->idstr: hpet, se->instance_id: 0
verison: 1.4.1, se->idstr: mc146818rtc, se->instance_id: 0
verison: 1.4.1, se->idstr: i8254, se->instance_id: 0
verison: 1.4.1, se->idstr: serial, se->instance_id: 0
verison: 1.4.1, se->idstr: ps2kbd, se->instance_id: 0
verison: 1.4.1, se->idstr: ps2mouse, se->instance_id: 0
verison: 1.4.1, se->idstr: pckbd, se->instance_id: 0
verison: 1.4.1, se->idstr: vmmouse, se->instance_id: 0
verison: 1.4.1, se->idstr: port92, se->instance_id: 0
verison: 1.4.1, se->idstr: dma, se->instance_id: 0
verison: 1.4.1, se->idstr: dma, se->instance_id: 1
verison: 1.4.1, se->idstr: fdc, se->instance_id: 0
verison: 1.4.1, se->idstr: 0000:00:01.1/ide, se->instance_id: 0
verison: 1.4.1, se->idstr: i2c_bus, se->instance_id: 0
verison: 1.4.1, se->idstr: 0000:00:01.3/piix4_pm, se->instance_id: 0
verison: 1.4.1, se->idstr: 0000:00:06.0/i6300esb_wdt, se->instance_id: 0

version: 1.5.0, se->idstr: timer, se->instance_id: 0
version: 1.5.0, se->idstr: cpu_common, se->instance_id: 0
version: 1.5.0, se->idstr: cpu, se->instance_id: 0
version: 1.5.0, se->idstr: kvm-tpr-opt, se->instance_id: 0
version: 1.5.0, se->idstr: apic, se->instance_id: 0
version: 1.5.0, se->idstr: kvmclock, se->instance_id: 0
version: 1.5.0, se->idstr: fw_cfg, se->instance_id: 0
version: 1.5.0, se->idstr: PCIBUS, se->instance_id: 0
version: 1.5.0, se->idstr: 0000:00:00.0/I440FX, se->instance_id: 0
version: 1.5.0, se->idstr: 0000:00:01.0/PIIX3, se->instance_id: 0
version: 1.5.0, se->idstr: i8259, se->instance_id: 0
version: 1.5.0, se->idstr: i8259, se->instance_id: 1
version: 1.5.0, se->idstr: ioapic, se->instance_id: 0
version: 1.5.0, se->idstr: 0000:00:02.0/vga, se->instance_id: 0
version: 1.5.0, se->idstr: hpet, se->instance_id: 0
version: 1.5.0, se->idstr: mc146818rtc, se->instance_id: 0
version: 1.5.0, se->idstr: i8254, se->instance_id: 0
version: 1.5.0, se->idstr: serial, se->instance_id: 0
version: 1.5.0, se->idstr: ps2kbd, se->instance_id: 0
version: 1.5.0, se->idstr: ps2mouse, se->instance_id: 0
version: 1.5.0, se->idstr: pckbd, se->instance_id: 0
version: 1.5.0, se->idstr: vmmouse, se->instance_id: 0
version: 1.5.0, se->idstr: port92, se->instance_id: 0
version: 1.5.0, se->idstr: dma, se->instance_id: 0
version: 1.5.0, se->idstr: dma, se->instance_id: 1
version: 1.5.0, se->idstr: fdc, se->instance_id: 0
version: 1.5.0, se->idstr: 0000:00:01.1/ide, se->instance_id: 0
version: 1.5.0, se->idstr: i2c_bus, se->instance_id: 0
version: 1.5.0, se->idstr: 0000:00:01.3/piix4_pm, se->instance_id: 0
version: 1.5.0, se->idstr: 0000:00:06.0/i6300esb_wdt, se->instance_id: 0

Seems like the actual load is failing, but the VMSD hasn't changed so
i'm not sure what's going on.

> 
> /Nick
> 
> 
> 



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