From: "Linux regression tracking (Thorsten Leemhuis)" <regressions@leemhuis.info>
To: Stefan Wahren <stefan.wahren@i2se.com>,
Sergey Organov <sorganov@gmail.com>
Cc: "Linux regressions mailing list" <regressions@lists.linux.dev>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Stefan Wahren" <stefan.wahren@chargebyte.com>,
linux-serial@vger.kernel.org,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"NXP Linux Team" <linux-imx@nxp.com>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Shawn Guo" <shawnguo@kernel.org>,
"Jiri Slaby" <jirislaby@kernel.org>,
"Tomasz Moń" <tomasz.mon@camlingroup.com>,
"Linux ARM" <linux-arm-kernel@lists.infradead.org>
Subject: Re: Regression: serial: imx: overrun errors on debug UART
Date: Tue, 20 Jun 2023 16:47:10 +0200 [thread overview]
Message-ID: <3853881c-976f-dadc-b64b-4ffd8cc88cf0@leemhuis.info> (raw)
In-Reply-To: <d1b6209d-a174-406a-cc81-86b391940c0c@i2se.com>
On 24.05.23 15:07, Stefan Wahren wrote:
>
> Am 23.05.23 um 21:44 schrieb Sergey Organov:
>> "Linux regression tracking (Thorsten Leemhuis)"
>> <regressions@leemhuis.info> writes:
>>
>> Solving this would need to identify the cause of interrupts being
>> disabled for prolonged times, and nobody volunteered to investigate this
>> further. One suspect, the Linux serial console, has been likely excluded
>> already though, as not actually being in use for printk() output.
>>
>
> I don't think that we can exclude the serial console as a whole, i never
> made such a observation. But at least we can exclude kernel logging on
> the debug UART.
Stefan, just wondering: was this ever addressed upstream? I assume it's
not, just wanted to be sure.
I'm a bit unsure what to do with this and consider asking Greg for
advice, as he applied the patch. On one hand it's *IMHO* clearly a
regression (but for the record, some people involved in the discussion
claim it's not). OTOH the culprit was applied more than a year ago now,
so reverting it might cause more trouble than it's worth at this point,
as that could lead to regressions for other users.
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.
#regzbot poke
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next prev parent reply other threads:[~2023-06-20 14:47 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-24 8:57 Regression: serial: imx: overrun errors on debug UART Stefan Wahren
2023-03-24 10:12 ` Linux regression tracking #adding (Thorsten Leemhuis)
2023-03-24 11:47 ` Ilpo Järvinen
2023-03-24 12:26 ` Francesco Dolcini
2023-03-24 12:35 ` Ilpo Järvinen
2023-03-24 12:49 ` Stefan Wahren
2023-03-24 13:06 ` Francesco Dolcini
2023-03-24 12:57 ` Fabio Estevam
2023-03-24 13:37 ` Uwe Kleine-König
2023-03-24 14:19 ` Stefan Wahren
2023-03-24 14:39 ` Uwe Kleine-König
2023-03-24 21:57 ` Sergey Organov
2023-03-24 15:00 ` Stefan Wahren
2023-03-25 11:31 ` Stefan Wahren
2023-03-25 12:23 ` Fabio Estevam
2023-03-25 15:11 ` Uwe Kleine-König
2023-03-25 17:05 ` Stefan Wahren
2023-03-25 19:00 ` Sergey Organov
2023-03-26 18:21 ` Francesco Dolcini
2023-03-27 8:07 ` Tomasz Moń
2023-03-25 18:30 ` Sergey Organov
2023-03-27 14:42 ` Stefan Wahren
2023-03-27 15:11 ` Sergey Organov
2023-03-27 15:30 ` Russell King (Oracle)
2023-04-16 13:43 ` Stefan Wahren
2023-04-17 16:50 ` Sergey Organov
2023-04-17 18:40 ` Stefan Wahren
2023-04-18 16:16 ` Stefan Wahren
2023-05-22 9:25 ` Linux regression tracking (Thorsten Leemhuis)
2023-05-23 15:12 ` Stefan Wahren
2023-05-23 19:44 ` Sergey Organov
2023-05-24 10:48 ` Thorsten Leemhuis
2023-05-24 12:41 ` Uwe Kleine-König
2023-05-24 13:45 ` Sergey Organov
2023-05-24 13:07 ` Stefan Wahren
2023-06-20 14:47 ` Linux regression tracking (Thorsten Leemhuis) [this message]
2023-06-20 14:59 ` Greg Kroah-Hartman
2023-06-20 15:34 ` Sergey Organov
2023-06-20 16:30 ` Stefan Wahren
2023-06-20 16:40 ` Lucas Stach
2023-06-20 16:55 ` Stefan Wahren
2023-06-20 19:27 ` Uwe Kleine-König
2023-06-21 8:43 ` Greg Kroah-Hartman
2023-06-21 6:23 ` Stefan Wahren
2023-06-21 13:42 ` Linux regression tracking (Thorsten Leemhuis)
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