new file mode 100755
@@ -0,0 +1,55 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2019 Logan Gunthorpe
+#
+# Regression test for the following patches:
+# nvme: fix controller removal race with scan work
+# nvme: fix regression upon hot device removal and insertion
+# nvme-core: Fix extra device_put() call on error path
+# nvmet-loop: Flush nvme_delete_wq when removing the port
+# nvmet: Fix use-after-free bug when a port is removed
+#
+# All these patches fix issues related to deleting a controller
+# immediately after setting it up.
+
+. tests/nvme/rc
+
+DESCRIPTION="test deletion of NVMeOF controllers immediately after setup"
+QUICK=1
+
+requires() {
+ _have_program nvme &&
+ _have_modules loop nvme-loop nvmet &&
+ _have_configfs
+}
+
+test() {
+ local subsys="blktests-subsystem-"
+ local iterations=10
+ local loop_dev
+ local port
+
+ echo "Running ${TEST_NAME}"
+
+ _setup_nvmet
+
+ truncate -s 1G "$TMPDIR/img"
+
+ local loop_dev
+ loop_dev="$(losetup -f --show "$TMPDIR/img")"
+
+ port="$(_create_nvmet_port "loop")"
+
+ for ((i = 0; i < iterations; i++)); do
+ _create_nvmet_subsystem "${subsys}$i" "${loop_dev}"
+ _add_nvmet_subsys_to_port "${port}" "${subsys}$i"
+ nvme connect -t loop -n "${subsys}$i"
+ nvme disconnect -n "${subsys}$i" >> "${FULL}" 2>&1
+ _remove_nvmet_subsystem_from_port "${port}" "${subsys}$i"
+ _remove_nvmet_subsystem "${subsys}$i"
+ done
+
+ _remove_nvmet_port "${port}"
+
+ echo "Test complete"
+}
new file mode 100644
@@ -0,0 +1,2 @@
+Running nvme/031
+Test complete
A number of bug fixes have been submitted to the kernel to fix bugs when a controller is removed immediately after it is set up. This new test ensures this doesn't regress. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> --- All of the fixes required for this test to pass have been on the list for a couple weeks, but not all of them have been merged. I'm not sure what the policy is for blktests for patches that aren't yet upstream but this patch is here for when it makes sense to pick it up. tests/nvme/031 | 55 ++++++++++++++++++++++++++++++++++++++++++++++ tests/nvme/031.out | 2 ++ 2 files changed, 57 insertions(+) create mode 100755 tests/nvme/031 create mode 100644 tests/nvme/031.out -- 2.20.1