Hi! This fixes real problem (see 04). On the other hand it may be too much for 5.1, and it's not a degradation. So, up to you.
It's based on "[PATCH for-5.1? 0/3] Fix nbd reconnect dead-locks", or in other words Based-on: <20200720090024.18186-1-vsement...@virtuozzo.com> Vladimir Sementsov-Ogievskiy (4): qemu-sockets: refactor inet_connect_addr qemu-sockets: implement non-blocking connect interface io/channel-socket: implement non-blocking connect block/nbd: use non-blocking connect: fix vm hang on connect() include/io/channel-socket.h | 14 +++++++ include/qemu/sockets.h | 6 +++ block/nbd.c | 11 +++--- io/channel-socket.c | 74 ++++++++++++++++++++++++++++++++++++ util/qemu-sockets.c | 76 ++++++++++++++++++++++++++----------- 5 files changed, 153 insertions(+), 28 deletions(-) -- 2.21.0
