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Tue, 26 Nov 2019 10:31:55 +0000 (UTC) Received: from dresden.str.redhat.com (ovpn-204-240.brq.redhat.com [10.40.204.240]) by smtp.corp.redhat.com (Postfix) with ESMTPS id BFE0A600C6; Tue, 26 Nov 2019 10:31:53 +0000 (UTC) Subject: Re: [PATCH for-4.2 0/2] Fix bitmap migration To: Vladimir Sementsov-Ogievskiy , qemu-block@nongnu.org References: <20191125125229.13531-1-vsementsov@virtuozzo.com> From: Max Reitz Autocrypt: addr=mreitz@redhat.com; prefer-encrypt=mutual; keydata= mQENBFXOJlcBCADEyyhOTsoa/2ujoTRAJj4MKA21dkxxELVj3cuILpLTmtachWj7QW+TVG8U /PsMCFbpwsQR7oEy8eHHZwuGQsNpEtNC2G/L8Yka0BIBzv7dEgrPzIu+W3anZXQW4702+uES U29G8TP/NGfXRRHGlbBIH9KNUnOSUD2vRtpOLXkWsV5CN6vQFYgQfFvmp5ZpPeUe6xNplu8V mcTw8OSEDW/ZnxJc8TekCKZSpdzYoxfzjm7xGmZqB18VFwgJZlIibt1HE0EB4w5GsD7x5ekh awIe3RwoZgZDLQMdOitJ1tUc8aqaxvgA4tz6J6st8D8pS//m1gAoYJWGwwIVj1DjTYLtABEB AAG0HU1heCBSZWl0eiA8bXJlaXR6QHJlZGhhdC5jb20+iQFTBBMBCAA9AhsDBQkSzAMABQsJ CAcCBhUICQoLAgQWAgMBAh4BAheABQJVzie5FRhoa3A6Ly9rZXlzLmdudXBnLm5ldAAKCRD0 B9sAYdXPQDcIB/9uNkbYEex1rHKz3mr12uxYMwLOOFY9fstP5aoVJQ1nWQVB6m2cfKGdcRe1 2/nFaHSNAzT0NnKz2MjhZVmcrpyd2Gp2QyISCfb1FbT82GMtXFj1wiHmPb3CixYmWGQUUh+I AvUqsevLA+WihgBUyaJq/vuDVM1/K9Un+w+Tz5vpeMidlIsTYhcsMhn0L9wlCjoucljvbDy/ 8C9L2DUdgi3XTa0ORKeflUhdL4gucWoAMrKX2nmPjBMKLgU7WLBc8AtV+84b9OWFML6NEyo4 4cP7cM/07VlJK53pqNg5cHtnWwjHcbpGkQvx6RUx6F1My3y52vM24rNUA3+ligVEgPYBuQEN BFXOJlcBCADAmcVUNTWT6yLWQHvxZ0o47KCP8OcLqD+67T0RCe6d0LP8GsWtrJdeDIQk+T+F xO7DolQPS6iQ6Ak2/lJaPX8L0BkEAiMuLCKFU6Bn3lFOkrQeKp3u05wCSV1iKnhg0UPji9V2 W5eNfy8F4ZQHpeGUGy+liGXlxqkeRVhLyevUqfU0WgNqAJpfhHSGpBgihUupmyUg7lfUPeRM DzAN1pIqoFuxnN+BRHdAecpsLcbR8sQddXmDg9BpSKozO/JyBmaS1RlquI8HERQoe6EynJhd 64aICHDfj61rp+/0jTIcevxIIAzW70IadoS/y3DVIkuhncgDBvGbF3aBtjrJVP+5ABEBAAGJ ASUEGAEIAA8FAlXOJlcCGwwFCRLMAwAACgkQ9AfbAGHVz0CbFwf9F/PXxQR9i4N0iipISYjU sxVdjJOM2TMut+ZZcQ6NSMvhZ0ogQxJ+iEQ5OjnIputKvPVd5U7WRh+4lF1lB/NQGrGZQ1ic alkj6ocscQyFwfib+xIe9w8TG1CVGkII7+TbS5pXHRxZH1niaRpoi/hYtgzkuOPp35jJyqT/ /ELbqQTDAWcqtJhzxKLE/ugcOMK520dJDeb6x2xVES+S5LXby0D4juZlvUj+1fwZu+7Io5+B bkhSVPb/QdOVTpnz7zWNyNw+OONo1aBUKkhq2UIByYXgORPFnbfMY7QWHcjpBVw9MgC4tGeF R4bv+1nAMMxKmb5VvQCExr0eFhJUAHAhVg== Message-ID: <3f25f814-24be-cc3d-770a-8ad9d3be5993@redhat.com> Date: Tue, 26 Nov 2019 11:31:52 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191125125229.13531-1-vsementsov@virtuozzo.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="WmyL9Rw1NAvt2RKaIkXQnHIeWd988y4Ue" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, jsnow@redhat.com, qemu-devel@nongnu.org, qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --WmyL9Rw1NAvt2RKaIkXQnHIeWd988y4Ue Content-Type: multipart/mixed; boundary="HsnE1kDWNdmVjTcjzjhlvvxUlVwmXZzNQ" --HsnE1kDWNdmVjTcjzjhlvvxUlVwmXZzNQ Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 25.11.19 13:52, Vladimir Sementsov-Ogievskiy wrote: > Hi all! >=20 > We've faced a bug in rhev-2.12.0-33.el7-based Qemu. > In upstream, bug introduced in 4.0 by 74da6b943565c45 > "block/dirty-bitmaps: implement inconsistent bit" commit. > At this commit we started to load inconsistent bitmap instead of > silently ignoring them, and it now I see that it breaks migration. >=20 > The fix is very simple, so I think it's OK for 4.2.. Still, it's not a > degradation, so we may postpone it to 5.0. >=20 > Vladimir Sementsov-Ogievskiy (2): > block/qcow2-bitmap: fix bitmap migration > iotests: add new test cases to bitmap migration >=20 > block/qcow2-bitmap.c | 21 ++++++++++++++++++++- > tests/qemu-iotests/169 | 22 +++++++++++++++------- > tests/qemu-iotests/169.out | 4 ++-- > 3 files changed, 37 insertions(+), 10 deletions(-) Thanks, applied to my block branch: https://git.xanclic.moe/XanClic/qemu/commits/branch/block Max --HsnE1kDWNdmVjTcjzjhlvvxUlVwmXZzNQ-- --WmyL9Rw1NAvt2RKaIkXQnHIeWd988y4Ue Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEkb62CjDbPohX0Rgp9AfbAGHVz0AFAl3c/xgACgkQ9AfbAGHV z0DifQf9FNpOlItmDiEkkDhpLXLXd/24tehJa63xCpQBAg0F6xvOjTp+LBCN27D/ 8xkmDpmZouPgfDS4me5DhYopVQY5jumYZ0dv/WuZzm35+GHSgw2+VuzLm07k0CX0 XJzzMIs56V4/XFduN+59g05YUl4uB1sHLz8PzO78T4xB2vZVYkAoCbMCfyJIvQ22 767sWBhq+5vSmYHkV8bkw4DXBcNkxQ9rtJsz7nlk1HqgVr42Cj4eBb2grTMklnuC 5Wald6ytlio9hh1NOjH+pafsA89oAzFBI3va6S+Rd8MV5YhUmh+rGLAcY9M9dn+G NXPI19XRC/TNMtCsU0/AZHMirfsCxw== =UQ9e -----END PGP SIGNATURE----- --WmyL9Rw1NAvt2RKaIkXQnHIeWd988y4Ue--