These are accumulated fixes that showed up when working on the "change"
issue and "repeated snapshot + commit" crash on dataplane:
[Qemu-devel] [PATCH] blk: fix aio context loss on media change
- Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[Qemu-devel] New iotest repros failures on virtio external snapshot with
iothread
- Ed Swierk <eswierk@skyportsystems.com>
Specifically, patch 4 is an output of the former, and the rest are from the
latter. They seem quite related hence this one series.
With this series applied, Ed's test case '176' passes (reran 10+ times):
https://github.com/skyportsystems/qemu-1/commits/eswierk-iotests-2.9
NOTE: The "change" crash still needs Vladimir's fix. Patch 4 is noticed with a
few not-so-related WIP patches, but my understanding is this is a latent bug
and IMO the change is rather harmless to have.
Fam Zheng (5):
block: Fix unpaired aio_disable_external in external snapshot
mirror: Fix aio context of mirror_top_bs
block: Quiesce old aio context during bdrv_set_aio_context
block: Drain BH in bdrv_drained_begin
coroutine: Explicitly specify AioContext when creating coroutine
block.c | 23 +++++++++++++++++---
block/blkverify.c | 4 ++--
block/block-backend.c | 4 ++--
block/io.c | 21 ++++++++++++-------
block/mirror.c | 1 +
block/nbd-client.c | 2 +-
block/quorum.c | 6 +++---
block/sheepdog.c | 4 ++--
blockdev.c | 4 ++--
blockjob.c | 2 +-
hw/9pfs/9p.c | 4 ++--
include/block/block.h | 3 +++
include/qemu/coroutine.h | 3 ++-
include/qemu/main-loop.h | 2 +-
migration/migration.c | 3 ++-
nbd/server.c | 6 ++++--
qemu-img.c | 3 ++-
qemu-io-cmds.c | 3 ++-
tests/test-aio-multithread.c | 12 +++++++----
tests/test-coroutine.c | 50 ++++++++++++++++++++++++++++++--------------
tests/test-thread-pool.c | 3 ++-
util/qemu-coroutine.c | 6 ++++--
22 files changed, 113 insertions(+), 56 deletions(-)
--
2.9.3