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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Jeaho Hwang <jhhwang@rtst.co.kr>
Cc: "Peter Chen" <peter.chen@kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Thomas Gleixner" <tglx@linutronix.de>,
	linux-rt-users@vger.kernel.org,
	"Linux team" <team-linux@rtst.co.kr>,
	"변무광(Byeon Moo Kwang)/자동화연)Automation Platform연구팀"
	<mkbyeon@lselectric.co.kr>,
	"최기홍(Choi Ki Hong)/자동화연)Automation Platform연구팀"
	<khchoib@lselectric.co.kr>
Subject: Re: [PATCH v2] usb: chipidea: local_irq_save/restore added for hw_ep_prime
Date: Mon, 23 Aug 2021 18:14:01 +0200	[thread overview]
Message-ID: <20210823161401.ix6l33o3sja7sy45@linutronix.de> (raw)
In-Reply-To: <CAJk_X9gqBACA3O=4LdY3XJP5UzJe2p4bE72X_jNEHR1Cn=vDNQ@mail.gmail.com>

On 2021-08-21 16:04:01 [+0900], Jeaho Hwang wrote:
> 2021년 8월 21일 (토) 오후 2:05, Peter Chen <peter.chen@kernel.org>님이 작성:
> >
> HI Peter.
> 
> We configured the kernel as "low latency desktop" and added
> "threadirqs" inside the cmdline parameter.
> Then udc irq handler runs as a thread and shows no suspicious working.
> I Hope It will help.

May I again point out that since commit
   81e2073c175b8 ("genirq: Disable interrupts for force threaded handlers")                                                                                         

the threaded handler runs with disabled interrupts. This time more
verbose. It is available since v5.12-rc4 but it has been also applied
for stable.

> Thanks.

Sebastian

  reply	other threads:[~2021-08-23 16:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-17  9:53 Jeaho Hwang
2021-08-18 16:17 ` Sebastian Andrzej Siewior
2021-08-18 23:50   ` Jeaho Hwang
2021-08-19  8:47     ` Sebastian Andrzej Siewior
2021-08-20  5:15       ` Jeaho Hwang
2021-08-21  5:05         ` Peter Chen
2021-08-21  7:04           ` Jeaho Hwang
2021-08-23 16:14             ` Sebastian Andrzej Siewior [this message]
2021-08-23 16:51         ` Sebastian Andrzej Siewior

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