[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] Re: [PATCH] savevm: fix corruption in vmstate_subsectio
From: |
Yoshiaki Tamura |
Subject: |
Re: [Qemu-devel] Re: [PATCH] savevm: fix corruption in vmstate_subsection_load(). |
Date: |
Thu, 20 Jan 2011 17:57:32 +0900 |
2011/1/20 Paolo Bonzini <address@hidden>:
> On 12/14/2010 10:07 AM, Yoshiaki Tamura wrote:
>>
>> Although it's rare to happen in live migration, when the head of a
>> byte stream contains 0x05
>
> IIUC, this happens if you have VMS_STRUCT and the field after the VMS_STRUCT
> starts with 0x5.
>
> I think you should also add this in vmstate_subsection_load:
>
> sub_vmsd = vmstate_get_subsection(sub, idstr);
> if (sub_vmsd == NULL) {
> return -ENOENT;
> }
> + assert (!sub_vmsd->subsections);
> ret = vmstate_load_state(f, sub_vmsd, opaque, version_id);
>
> and this in vmstate_load_state:
>
> if (field->flags & VMS_STRUCT) {
> + assert (!vmsd->subsections);
> ret = vmstate_load_state(f, field->vmsd, addr,
> field->vmsd->version_id);
> }
Hi Paolo,
You mean, having subsection nested and under VMS_STRUCT are
violations?
Yoshi
>
> Paolo
>
>