diff options
| author | Hanna Reitz <hreitz@redhat.com> | 2022-02-04 12:10:12 +0100 |
|---|---|---|
| committer | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2022-02-11 14:06:18 +0100 |
| commit | 8cfbe929e8c26050f0a4580a1606a370a947d4ce (patch) | |
| tree | 3634a0f84dfaa0a9900574ea679cc22680d757f3 /tests/qemu-iotests/281.out | |
| parent | e15f3a66c830e3fce99c9d56c493c2f7078a1225 (diff) | |
iotests/281: Let NBD connection yield in iothread
Put an NBD block device into an I/O thread, and then read data from it,
hoping that the NBD connection will yield during that read. When it
does, the coroutine must be reentered in the block device's I/O thread,
which will only happen if the NBD block driver attaches the connection's
QIOChannel to the new AioContext. It did not do that after 4ddb5d2fde
("block/nbd: drop connection_co") and prior to "block/nbd: Move s->ioc
on AioContext change", which would cause an assertion failure.
To improve our chances of yielding, the NBD server is throttled to
reading 64 kB/s, and the NBD client reads 128 kB, so it should yield at
some point.
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Diffstat (limited to 'tests/qemu-iotests/281.out')
| -rw-r--r-- | tests/qemu-iotests/281.out | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/qemu-iotests/281.out b/tests/qemu-iotests/281.out index 914e3737bd..3f8a935a08 100644 --- a/tests/qemu-iotests/281.out +++ b/tests/qemu-iotests/281.out @@ -1,5 +1,5 @@ -..... +...... ---------------------------------------------------------------------- -Ran 5 tests +Ran 6 tests OK |