qemu-e2k/tests/qemu-iotests
Kevin Wolf 8f37120383 iotests: Test two stream jobs in a single iothread
This tests two parallel stream jobs that will complete around the same
time and run on two different disks in the same iothreads. It is loosely
based on the bug report at https://issues.redhat.com/browse/RHEL-1761.

For me, this test hangs reliably with the originally reported bug in
blk_remove_bs(). After fixing it, it intermittently hangs for the bugs
fixed after it, missing AioContext unlocking in bdrv_graph_wrunlock()
and in stream_prepare(). The deadlocks seem to happen more frequently
when the test directory is on tmpfs.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231115172012.112727-5-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-11-21 12:45:21 +01:00
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=== This is the QEMU I/O test suite ===

* Intro

This package contains a simple test suite for the I/O layer of qemu.
It does not require a guest, but only the qemu, qemu-img and qemu-io
binaries.  This does limit it to exercise the low-level I/O path only
but no actual block drivers like ide, scsi or virtio.

* Usage

Just run ./check to run all tests for the raw image format, or ./check
-qcow2 to test the qcow2 image format.  The output of ./check -h explains
additional options to test further image formats or I/O methods.

* Feedback and patches

Please send improvements to the test suite, general feedback or just
reports of failing tests cases to qemu-devel@nongnu.org with a CC:
to qemu-block@nongnu.org.