Redirecting qemu's stderr to stdout makes working with the stderr output difficult due to the other file descriptor magic performed in _launch_qemu ("ambiguous redirect").
There is no harm in leaving stderr on stderr, so do it. Signed-off-by: Max Reitz <mre...@redhat.com> --- If someone has a better solution, especially regarding the redirection to a subshell here (test 091) and in the next patch, I'd be very grateful. All of my efforts to pipe the output of the _launch_qemu function resulted in said error ("ambiguous redirect"), so I had to keep it on stderr and I did not find another way to pipe stderr to another program. --- tests/qemu-iotests/091 | 3 ++- tests/qemu-iotests/common.qemu | 1 - 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/qemu-iotests/091 b/tests/qemu-iotests/091 index 32bbd56..caea1ce 100755 --- a/tests/qemu-iotests/091 +++ b/tests/qemu-iotests/091 @@ -68,7 +68,8 @@ echo echo === Starting QEMU VM2 === echo _launch_qemu -drive file="${TEST_IMG}",cache=${CACHEMODE},id=disk \ - -incoming "exec: cat '${MIG_FIFO}'" + -incoming "exec: cat '${MIG_FIFO}'" \ + 2> >(grep -v 'cat: write error') h2=$QEMU_HANDLE echo diff --git a/tests/qemu-iotests/common.qemu b/tests/qemu-iotests/common.qemu index 4e1996c..5f10c1e 100644 --- a/tests/qemu-iotests/common.qemu +++ b/tests/qemu-iotests/common.qemu @@ -155,7 +155,6 @@ function _launch_qemu() "${QEMU}" -nographic -serial none ${comm} -machine accel=qtest "${@}" \ >"${fifo_out}" \ - 2>&1 \ <"${fifo_in}" & QEMU_PID[${_QEMU_HANDLE}]=$! -- 2.1.0