From: Pavel Machek <pavel@denx.de>
To: Sasha Levin <sashal@kernel.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
Shuah Khan <skhan@linuxfoundation.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
mingo@redhat.com, shuah@kernel.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH AUTOSEL 4.19 09/13] selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT
Date: Thu, 24 Feb 2022 23:46:22 +0100 [thread overview]
Message-ID: <20220224224622.GD6522@duo.ucw.cz> (raw)
In-Reply-To: <20220223023152.242065-9-sashal@kernel.org>
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On Tue 2022-02-22 21:31:48, Sasha Levin wrote:
> From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
>
> [ Upstream commit 6fec1ab67f8d60704cc7de64abcfd389ab131542 ]
>
> The PREEMPT_RT patchset does not use do_softirq() function thus trying
> to filter for do_softirq fails for such kernel:
>
> echo do_softirq
> ftracetest: 81: echo: echo: I/O error
>
> Choose some other visible function for the test. The function does not
> have to be actually executed during the test, because it is only testing
> filter API interface.
This needs -rt patch even on mainline, right?
It is certainly not needed in -stable branches.
Best regards,
Pavel
> +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
> @@ -33,7 +33,7 @@ do_reset
>
> FILTER=set_ftrace_filter
> FUNC1="schedule"
> -FUNC2="do_softirq"
> +FUNC2="scheduler_tick"
>
> ALL_FUNCS="#### all functions enabled ####"
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
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next prev parent reply other threads:[~2022-02-24 22:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-23 2:31 [PATCH AUTOSEL 4.19 01/13] mac80211_hwsim: report NOACK frames in tx_status Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 02/13] mac80211_hwsim: initialize ieee80211_tx_info at hw_scan_work Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 03/13] i2c: bcm2835: Avoid clock stretching timeouts Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 04/13] ASoC: rt5668: do not block workqueue if card is unbound Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 05/13] ASoC: rt5682: " Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 06/13] Input: clear BTN_RIGHT/MIDDLE on buttonpads Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 07/13] cifs: fix double free race when mount fails in cifs_get_root() Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 08/13] USB: zaurus: support another broken Zaurus Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 09/13] selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT Sasha Levin
2022-02-24 22:46 ` Pavel Machek [this message]
2022-03-02 21:01 ` Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 10/13] dmaengine: shdma: Fix runtime PM imbalance on error Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 11/13] i2c: cadence: allow COMPILE_TEST Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 12/13] i2c: qup: " Sasha Levin
2022-02-24 22:41 ` Pavel Machek
2022-03-02 21:01 ` Sasha Levin
2022-02-23 2:31 ` [PATCH AUTOSEL 4.19 13/13] net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990 Sasha Levin
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