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 X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 275FBC433E1 for ; Fri, 12 Jun 2020 09:56:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F017A20838 for ; Fri, 12 Jun 2020 09:56:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591955769; bh=vpHTuwUDM9a5LcIHJu50XcaJieuFQe7fiS+Dk2mMIpM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=EDyBCokHzgWWDpqkRLXyGuSB/ffAt6Mmtv+DwsQBUbUvNRYE614vGaWElBNFAcr5B 6d9ldChPPFl3gN8blBfiv8tdfMYuo3eje4SByMKd9E+Gk3bC+wczdpDmV+d8/+HgtK Xar6ldTbmsMjmgnsnpj5IBp4AXG8vBZ639FbYCRU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726316AbgFLJ4I (ORCPT ); Fri, 12 Jun 2020 05:56:08 -0400 Received: from mail.kernel.org ([198.145.29.99]:32816 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725805AbgFLJ4H (ORCPT ); Fri, 12 Jun 2020 05:56:07 -0400 Received: from localhost (p54b33104.dip0.t-ipconnect.de [84.179.49.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5A9FB2081A; Fri, 12 Jun 2020 09:56:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591955767; bh=vpHTuwUDM9a5LcIHJu50XcaJieuFQe7fiS+Dk2mMIpM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=2UEHK2tVpciOsv09SaQXib8V2ByKV+2ALo5gw8FS5anC2j7Tgy3jxXHPBhEomd90v YYxI1o+AFsEg9pGS4MB1Yq+QFS0Lc6M1xgapxTGgqjSEmPY8z/xi7//huR020ol5Li +7ubHZAWSfrptdS+gfVO3wyHzmZMeKaB+cWeBQvc= Date: Fri, 12 Jun 2020 11:56:04 +0200 From: Wolfram Sang To: Krzysztof Kozlowski Cc: Oleksij Rempel , Pengutronix Kernel Team , Shawn Guo , Sascha Hauer , Fabio Estevam , NXP Linux Team , Gao Pan , Fugang Duan , linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] i2c: imx: Fix external abort on early interrupt Message-ID: <20200612095604.GA17763@ninjato> References: <1591796802-23504-1-git-send-email-krzk@kernel.org> <20200612090517.GA3030@ninjato> <20200612092941.GA25990@pi3> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="RnlQjJ0d97Da+TV1" Content-Disposition: inline In-Reply-To: <20200612092941.GA25990@pi3> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --RnlQjJ0d97Da+TV1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jun 12, 2020 at 11:29:41AM +0200, Krzysztof Kozlowski wrote: > On Fri, Jun 12, 2020 at 11:05:17AM +0200, Wolfram Sang wrote: > > On Wed, Jun 10, 2020 at 03:46:42PM +0200, Krzysztof Kozlowski wrote: > > > If interrupt comes early (could be triggered with CONFIG_DEBUG_SHIRQ), > >=20 > > That code is disabled since 2011 (6d83f94db95c ("genirq: Disable the > > SHIRQ_DEBUG call in request_threaded_irq for now"))? So, you had this > > without fake injection, I assume? >=20 > No, I observed it only after enabling DEBUG_SHIRQ (to a kernel with > some debugging options already). Interesting. Maybe probe was deferred and you got the extra irq when deregistering? --RnlQjJ0d97Da+TV1 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl7jUTAACgkQFA3kzBSg KbbntA//dAQo2Vc4X+lVKV4pApi36lY7bZa0XTJB1+2aZfBti0Twy0cQrN3vvaaQ rc4sYXRkK/d1N5z95dj3eWcnmsUtel2Ac5neRuCCFY62y27uI24JJT7HKKXwXPkT oFAxksVZ4cDnjrrtpeFSq5vWtqilA8s7m1bapaNS2B5kv7AtRD733NDXHNwec0Io nCgN4hKMEY+JZFBhnQG3VfR+i/kuvg4zPd47bb+gc3eGHuXs4jGMb06EXuKmBbK/ VdjUuwqiO/gGhcFAqdsA1JA9eSbvFfEJndS9uAz9WfXQBtIO//is6jFp5e9kU8Gx pmKCiiVUnO5BTLPreLSEqNDJeLAj17ksGj7nSAdxujjXeXLM68j6FZJRytOZLFdG o6KSO2QSbPEBGJiArJQj6s7i7GOP5pjPaEb+6x8ldV9hBkeAmsscFD92OiWHSgM6 rs1NX9s3/64cN0yWl2R0UActscJTQWMntBLiwBXoOU+Pjjh2dZU0ju0+diUjfgA4 /i714f+DaPkgC+HcTpzpmV9xmDCEGhLV6DJyJkbUHKknDLQ5e5rXxkGAeRWn1cCV 1UcrBB8YZR/YSJj5FO7T340Fg5kXAAtzZF5qIOSSjmD0cdadtHZNezhbL6jJfiJ2 seyWQ80gCrbSGVW3DH4sgm+CUDnVvCN33gMa50NmsZ0gPC2F3HA= =r8jc -----END PGP SIGNATURE----- --RnlQjJ0d97Da+TV1--