From 19026817f71c698d1acb9c85bf5544b799fc5c2c Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Thu, 9 Nov 2017 21:30:25 +0100 Subject: iotests: Make 136 less flaky 136 executes some AIO requests without a final aio_flush; then it advances the virtual clock and thus expects the last access time of the device to be less than the current time when queried (i.e. idle_time_ns to be greater than 0). However, without the aio_flush, some requests may be settled after the clock_step invocation. In that case, idle_time_ns would be 0 and the test fails. Fix this by adding an aio_flush if any AIO request other than some other aio_flush has been executed. Signed-off-by: Max Reitz Reviewed-by: Eric Blake Reviewed-by: Stefan Hajnoczi Message-id: 20171109203025.27493-6-mreitz@redhat.com Signed-off-by: Max Reitz --- tests/qemu-iotests/136 | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'tests/qemu-iotests/136') diff --git a/tests/qemu-iotests/136 b/tests/qemu-iotests/136 index 4b994897af..88b97ea7c6 100644 --- a/tests/qemu-iotests/136 +++ b/tests/qemu-iotests/136 @@ -238,6 +238,18 @@ sector = "%d" for i in range(failed_wr_ops): ops.append("aio_write %d 512" % bad_offset) + # We need an extra aio_flush to settle all outstanding AIO + # operations before we can advance the virtual clock, so that + # the last access happens before clock_step and idle_time_ns + # will be greater than 0 + extra_flush = 0 + if rd_ops + wr_ops + invalid_rd_ops + invalid_wr_ops + \ + failed_rd_ops + failed_wr_ops > 0: + extra_flush = 1 + + if extra_flush > 0: + ops.append("aio_flush") + if failed_wr_ops > 0: highest_offset = max(highest_offset, bad_offset + 512) @@ -251,7 +263,7 @@ sector = "%d" self.total_wr_bytes += wr_ops * wr_size self.total_wr_ops += wr_ops self.total_wr_merged += wr_merged - self.total_flush_ops += flush_ops + self.total_flush_ops += flush_ops + extra_flush self.invalid_rd_ops += invalid_rd_ops self.invalid_wr_ops += invalid_wr_ops self.failed_rd_ops += failed_rd_ops -- cgit v1.2.3