From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 87CC2C77B7A for ; Wed, 24 May 2023 13:08:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=udVWPy0Z0oyrSwJe+QKISY6OFJ+6VwTMurECGv7l04A=; b=po4d4fUWjw7fLj iWIvL92LIHjuvuvOTAI2mOsBcjo4XEc6CwweLt5j4pGpHYrYA1/ZH+zZPKHmHMEUPn0GoqMbar4JX xozvX4xacD1ifmqkctacNL+yg3T/vR5if8+A5+E260/H1Q7OuE07y/ONT/m4bq66QsZxIOEbtXGMK TMSEJ2MRt8BNki9WZBZxvGtcM0gkW2zapr52/OMN46IUCM+P8gEk3QlEkdfILeUmhut45Zw1nV9lU XJknNyqOHTTUFDinemHk8IhJ9AgBBpyd1mC9+0XZQF3KbCDAWreQpTZK2Hr6knHW/4p4LWasEWn/6 eKnrwhZ+jQ9dno/+/z8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q1oDT-00DWTa-0C; Wed, 24 May 2023 13:07:47 +0000 Received: from mout.kundenserver.de ([212.227.126.187]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q1oDQ-00DWSo-0V for linux-arm-kernel@lists.infradead.org; Wed, 24 May 2023 13:07:45 +0000 Received: from [192.168.1.141] ([37.4.248.58]) by mrelayeu.kundenserver.de (mreue010 [212.227.15.167]) with ESMTPSA (Nemesis) id 1M6lUk-1q2Mhy1jMU-008Ntb; Wed, 24 May 2023 15:07:28 +0200 Message-ID: Date: Wed, 24 May 2023 15:07:26 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: Regression: serial: imx: overrun errors on debug UART To: Sergey Organov Cc: Linux regressions mailing list , =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= , Fabio Estevam , =?UTF-8?Q?Ilpo_J=c3=a4rvinen?= , Stefan Wahren , linux-serial@vger.kernel.org, Greg Kroah-Hartman , Sascha Hauer , NXP Linux Team , Pengutronix Kernel Team , Shawn Guo , Jiri Slaby , =?UTF-8?Q?Tomasz_Mo=c5=84?= , Linux ARM , "Linux regression tracking (Thorsten Leemhuis)" References: <2c29454b-9369-4360-8eb4-c151f59460cb@i2se.com> <9e22f237-f3ee-0415-9e6b-89a137769b8f@i2se.com> <5d59dec6-9f6f-7b20-1221-f57c94b29cca@i2se.com> <20230325151100.mskydt3hwbnspqp4@pengutronix.de> <87mt3ynsa7.fsf@osv.gnss.ru> <87sfcy8ncu.fsf@osv.gnss.ru> <534ac8db-ae8f-1ea3-9aa9-2105db7f7a52@i2se.com> <203ce87f-2898-eb10-2f8c-f237859d75e6@leemhuis.info> <87ttw2vnn0.fsf@osv.gnss.ru> Content-Language: en-US From: Stefan Wahren In-Reply-To: <87ttw2vnn0.fsf@osv.gnss.ru> X-Provags-ID: V03:K1:N0dJId55/pLvRxTdMF8vMQANbrm4jDPmy3Y+2f82DdyNSgA9WEA V19vafEw+q8H8lMFLXyTIg/o7GtqHbwIjw+I1RMQ6Hg0JWuS2fdvQwMYMBr++omOVvK2ju6 KX12X0MxEbQMcoqDamVg8pULwWryDN6XQkBqFW05uRWqIctYbZPqvxFtJP92ygwATZVFb41 LQg5TpR+TXF7viTRObnGw== UI-OutboundReport: notjunk:1;M01:P0:hEss6wdf+bU=;tJjsYPCAgWWUl8pjmlavUmdIKRh scquokCrq+w43r8CJ4KsIDGdoLx476mjMT8LIg31cwi23cWXAJg/Xo6qu/EOFXGnX453IMpZv KBboaOPnSaeTFx1cR955IEXTkxfuUv2PYXXZCoqSSw41WYjuFcm6yCFrjbLDGPEppgYVxX83p 5cLgRgiMNKhih6xHAku4Wp1xALwHJ4fKWglmhlltnci1x36CNrt4tELgXvh6cbHvcJo3PdPw1 VZ+oMng95TB/7WymisiCAjjVYeEck/cnRisgerB2u8bDZESxfKZvTHuXduqXjBNuXYUBczhTF jwIsI533IXWas3gyEJjHglLzhrPjuXOSr5kKjIDrG/9pOfGTafrvE5rswOM7pfDNq2vlyUq7m em/ITH3oQMGe6iPy2L7LA8td2yu0cSMpijqUp/ePpRldD0nQIufSQ4cTDBGgYCLX3xU9ggkYn 82q2RIF14yBgQsXjccMdz+0buU6WxzQXM+KLIA714MAuukMJHhngYgrjGSDs6Ec7K7wlQ+18A iTTifSBmpXC2e+kO24MZAhtcrzWBmKJLTpk96u2xMGe6BSEDbc8bH9/DlY1P1PfdmKd7SsKi0 nysUr/dTa6HHM6yT0Eo00zV9JtigZkraLwY26y4gfzxsd05uNTGxCPV3EDvqHEy4TRwXf4WRw rqCl1nv2cjoWmnZRAzcrQqqR31Tpwvt9D2kNrnvZTg== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230524_060744_480891_79F936B5 X-CRM114-Status: GOOD ( 10.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Sergey, Am 23.05.23 um 21:44 schrieb Sergey Organov: > "Linux regression tracking (Thorsten Leemhuis)" > 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. Best regards _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel