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Re: [Qemu-devel] [PATCH] pseries: fix TCG migration
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From: |
Laurent Vivier |
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Subject: |
Re: [Qemu-devel] [PATCH] pseries: fix TCG migration |
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Date: |
Tue, 28 Nov 2017 18:39:03 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 |
On 28/11/2017 18:32, Laurent Vivier wrote:
> Migration of pseries is broken with TCG because
> QEMU tries to restore KVM MMU state unconditionally.
>
> The result is a SIGSEGV in kvm_vm_ioctl():
>
> at qemu/accel/kvm/kvm-all.c:2032
> radix=<optimized out>, gtse=<optimized out>, proc_tbl=<optimized out>)
> at qemu/target/ppc/kvm.c:396
> version_id=<optimized out>) at /home/lvivier/qemu/hw/ppc/spapr.c:1578
> vmsd=0x1009479e0 <vmstate_spapr>, opaque=0x1019103c0,
> version_id=<optimized out>) at /home/lvivier/qemu/migration/vmstate.c:165
> at qemu/migration/savevm.c:748
>
I'm going to resend the patch because the lines starting with "#" have
been removed...
Thanks,
Laurent