From: Guenter Roeck <linux@roeck-us.net>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>,
kernel-tls-handshake@lists.linux.dev, netdev@vger.kernel.org
Subject: Re: Persistent problem with handshake unit tests
Date: Fri, 2 Feb 2024 17:45:55 -0800 [thread overview]
Message-ID: <2ad1ff9f-bf42-4a36-855f-8ae62931dd84@roeck-us.net> (raw)
In-Reply-To: <20240202164705.6813edf2@kernel.org>
On 2/2/24 16:47, Jakub Kicinski wrote:
> On Fri, 2 Feb 2024 12:51:07 -0800 Guenter Roeck wrote:
>>> I have CONFIG_NET_HANDSHAKE_KUNIT_TEST=y enabled in my configuration.
>>> The tests run during boot, so no additional work is needed. I don't run all
>>> tests because many take too long to execute in qemu.
>
> I was wondering how do you discover the options. Periodically grep for
> new possible KUNIT options added to the kernel? Have some script that
> does it.
>
"Periodically grep for > new possible KUNIT options added to the kernel"
Exactly, and see what happens if I enable them to determine if they run
fast and if they are stable enough to be enabled in a qemu test. I can not
enable tests automatically because some just take too long to run, as in
# takes too long
# enable_config "${fragment}" CONFIG_TEST_RHASHTABLE
or
# takes too long
# enable_config "${fragment}" CONFIG_TORTURE_TEST CONFIG_LOCK_TORTURE_TEST CONFIG_RCU_TORTURE_TEST
Sometimes I have to disable tests because a long-running sub-option is added,
as in
# CONFIG_MEMCPY_KUNIT_TEST sometimes takes more than 45 seconds.
# CONFIG_MEMCPY_SLOW_KUNIT_TEST avoids this, but last time I checked
# this was not present in all affected kernel branches.
# enable_config "${fragment} CONFIG_MEMCPY_KUNIT_TEST
or because of problems such as
# RTC library unit tests hang in many qemu emulations
# enable_config "${fragment}" CONFIG_RTC_LIB_KUNIT_TEST
or
# clock unit tests seem to introduce noise warning tracebacks
# enable_config "${fragment}" CONFIG_CLK_GATE_KUNIT_TEST CONFIG_CLK_KUNIT_TEST
or
# Results in lots of "ASoC: Parent card not yet available" log messages
# enable_config "${fragment}" CONFIG_SND_SOC_TOPOLOGY_KUNIT_TEST SND_SOC_UTILS_KUNIT_TEST
or
# CONFIG_WW_MUTEX_SELFTEST interferes with CONFIG_PREEMPT=y
# enable_config "${fragment}" CONFIG_WW_MUTEX_SELFTEST
or
# generates warning backtraces on purpose
# enable_config "${fragment}" CONFIG_OF_UNITTEST
Thanks,
Guenter
>> Follow-up: If this test isn't supposed to run during boot, please
>> let me know and I'll drop it.
>
> FWIW I don't see why, but Chuck is the best person to comment.
next prev parent reply other threads:[~2024-02-03 1:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-02 17:21 Persistent problem with handshake unit tests Guenter Roeck
2024-02-02 19:22 ` Jakub Kicinski
2024-02-02 20:49 ` Guenter Roeck
2024-02-02 20:51 ` Guenter Roeck
2024-02-03 0:47 ` Jakub Kicinski
2024-02-03 1:45 ` Guenter Roeck [this message]
2024-02-03 2:27 ` Jakub Kicinski
2024-02-03 3:46 ` Chuck Lever III
2024-02-03 3:54 ` Guenter Roeck
2024-02-06 16:47 ` Chuck Lever
2024-02-06 17:55 ` Guenter Roeck
2024-02-06 19:05 ` Guenter Roeck
2024-02-06 19:07 ` Chuck Lever
2024-02-06 19:24 ` Guenter Roeck
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