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[Qemu-devel] Re: Live migration of x86-64 kvm guests broken?
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] Re: Live migration of x86-64 kvm guests broken? |
Date: |
Wed, 02 Dec 2009 19:05:28 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Ryan Harper wrote:
> * Jan Kiszka <address@hidden> [2009-12-02 09:28]:
>> Hi,
>>
>> I'm facing stalled x86-64 guests after live migration when using kvm
>> (share disk images). This does not happen with x86-32 guests or when
>> disabling kvm. Both qemu and qemu-kvm git heads are affected (recent
>> vmstate fixes applied). Running I/O load during the migration (e.g. a
>> simple "ls -R /") seems to trigger it reliably.
>>
>> Can anyone confirm / comment on this? Do we fail to restore some magic
>> state that only long mode cares about?
>
> Just tested upstream qemu.git (with vmstate fixes) and I could migrate
> RHEL 5.3 64-bit guest with your light io load over localhost. I'll try
> remote hosts next.
Hell, too many variables. It looks like the kernel modules have some if
not the ultimate impact: kvm-mod-2.6.31.6b on my 2.6.27 host works fine,
kvm-kmod stable-2.6.32 as well as master cause troubles.
What is your host kernel and/or kvm module version?
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
- [Qemu-devel] Live migration of x86-64 kvm guests broken?, Jan Kiszka, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Ryan Harper, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?,
Jan Kiszka <=
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Ryan Harper, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Jan Kiszka, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Ryan Harper, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Jan Kiszka, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Ryan Harper, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Ryan Harper, 2009/12/02
- [Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Jan Kiszka, 2009/12/02
[Qemu-devel] Re: Live migration of x86-64 kvm guests broken?, Juan Quintela, 2009/12/02