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[Qemu-devel] Incremental Backup Status (Was: Re: [Qemu-block] [PATCH v5

From: John Snow
Subject: [Qemu-devel] Incremental Backup Status (Was: Re: [Qemu-block] [PATCH v5 6/6] docs/interop: add nbd.txt)
Date: Thu, 21 Jun 2018 18:10:03 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0

On 06/21/2018 11:59 AM, Vladimir Sementsov-Ogievskiy wrote:
> 20.06.2018 23:58, John Snow wrote:
>> Vladimir, can you jog our memories and let us know which series still
>> need to hit QEMU for 3.0 for safe persistence/migration et al?
>> (Not including any of my own qemu-img patches which I'll get to by
>> freeze.)
> not a trivial question :)
> at least, there are the following pending patches:
> migration
>    [PATCH] migration: invalidate cache before source start

I have to look.

> persistance
>    [PATCH v2] qcow2: add overlap check for bitmap directory

Needs an eye by Kevin or Max.

>    [PATCH] block/qcow2: fix logic around dirty_bitmaps_loaded

You're planning to send a V2, yes?

>    thread "bug in reopen arch", there is no final solution for now

I'll catch up.

>    also, I need to finally rethink and make a patch to don't have any
> persistent bitmaps in inactive mode

Or at least reload then on re-activate...

> fleecing
>    [PATCH] block/fleecing-filter: new filter driver for fleecing (new
> patch, but I remember, I've already started to discuss this..)

On my plate to review.

Otherwise, I think Eric has pulled most of the patches he intended to,
had a spec-based fix for NBD (which you and I already reviewed) and has
a hack that serves as a PoC for libvirt-based testing I intend to look
over shortly.

>From my end, I need to rethink my qemu-img patches to either avoid the
bm_list cache issue or solve the problems you identified; and I'm
waiting to see if Nikolay or Eric would find the n-ary bitmap merge useful.

Thank you,

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