Re: [PATCH blktests] nvme/031: Add test to check controller deletion after setup

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On 2019-09-07 12:19 p.m., Chaitanya Kulkarni wrote:
> On 09/05/2019 10:44 AM, Logan Gunthorpe wrote:
>> 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@xxxxxxxxxxxx>
>>
>> ---
>>
>> This is reallly just a resend. The patches this tests for are all in
>> 5.3-rc7 or earlier and it passes on said kernel version.
>>
>> I've rebased this patch onto the latest blktests as of today with no
>> changes required.
>>
>> Thanks,
>>
>> Logan
>>
>>   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
>>
>> diff --git a/tests/nvme/031 b/tests/nvme/031
>> new file mode 100755
>> index 000000000000..16390dcb380e
>> --- /dev/null
>> +++ b/tests/nvme/031
>> @@ -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
> Duplicate declaration of the local variable ?

Oops, yes, nice catch. I'll send an updated patch later this week.

Logan



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