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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28111C00140 for ; Fri, 19 Aug 2022 00:38:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244625AbiHSAi0 (ORCPT ); Thu, 18 Aug 2022 20:38:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243317AbiHSAiX (ORCPT ); Thu, 18 Aug 2022 20:38:23 -0400 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D94D481C5 for ; Thu, 18 Aug 2022 17:38:22 -0700 (PDT) Received: by mail-pg1-x536.google.com with SMTP id 202so2528812pgc.8 for ; Thu, 18 Aug 2022 17:38:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc; bh=uaAY5FUxLbVgPNlfLoUfupM+nmBQ9ZGafJzO117nq8g=; b=SLUqj/6euaOatuUK2NC8fjYNbAO12r/sSxk2TtkwGMM7Xx2rQR27VYEKj7w49p0n4U ttYCxyHLD4dZR0AmOpfJkFnXTmJ5H21keIGDnNJXUVed41jpFXIagRmgLgXP3Uo59Xuf dAlnZiAyCxWA4MWqIgtOhjU7MePRskq3ExKT4WrMQ65vfcBcZDtfdJvcm3q1DbsiO6Hf Rozuxk+w5mbS0KABkqeb3/5gkmRrFST9zT1cH33rWP/4vZKrkER0PwkGve4H+QyebxZH Ptv9zZ2RvNY+5MeHJzKsz/yBgT+g5u7q5YP/RKvOe5XrLQknNyPeKCex9IjWDysGyVvV D1GQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc; bh=uaAY5FUxLbVgPNlfLoUfupM+nmBQ9ZGafJzO117nq8g=; b=0gw2VJ9ulAK5W/vOjXwVNcqbuyuFyGGNnP/kUS53JUG+r0M3V9gQHFyFty7CtcuMV+ 8M/CY0RgC9GgQDHhXpHl4QZt0n7Pzy8qnfIT3q1TZMpekjEqaP9P6G9aM7IZqfeafsNZ qO5nDZSZE3BE6QQSfT3M6R27D6SJvEE6Lk6APoEoHepi6OOBIEXLIp+J3UDheXcT7nth tB1bmUOk2RM2894hH1ELLioQp5L290qQ7IPHMP5eRTpiMrvMjOIZICWNUS6jiY1v4rKh ark3Xi9G7XnUwXpepJXp89Ni522tX5X8q9TEaer+iAQm6JgEjL4qCf1/NcerTQEDziay Xfbw== X-Gm-Message-State: ACgBeo1daEf9rIlfrUYA8Oa5jfUmHaxsVA7Y7DN89nMa3mMQVJXrcQ/5 mHoy4RZqg8ietVru5ofH/NYfUQ== X-Google-Smtp-Source: AA6agR7VoOScTbEohs79Z6ARtks3G0b8GoE1/AMSLubyc3KzeWbFzZ5sGd4VVQK3EfMvWLsInL3IPA== X-Received: by 2002:a63:505a:0:b0:421:a16a:d286 with SMTP id q26-20020a63505a000000b00421a16ad286mr4318375pgl.441.1660869501835; Thu, 18 Aug 2022 17:38:21 -0700 (PDT) Received: from google.com ([2620:15c:2d:3:aa25:fe91:7e28:16bc]) by smtp.gmail.com with ESMTPSA id p18-20020a170902ead200b0016a6caacaefsm1952248pld.103.2022.08.18.17.38.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Aug 2022 17:38:21 -0700 (PDT) Date: Thu, 18 Aug 2022 17:38:15 -0700 From: Isaac Manjarres To: Guenter Roeck Cc: Greg Kroah-Hartman , "Rafael J. Wysocki" , Ulf Hansson , Tomeu Vizoso , Russell King , Marek Szyprowski , Saravana Kannan , stable@kernel.org, kernel-team@android.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] driver core: Fix bus_type.match() error handling Message-ID: References: <20220815211919.2028890-1-isaacmanjarres@google.com> <20220816042507.GB1108868@roeck-us.net> <20220816111311.GC1108868@roeck-us.net> <20220817010559.GA1880847@roeck-us.net> <20220818225932.GA3433999@roeck-us.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220818225932.GA3433999@roeck-us.net> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 18, 2022 at 03:59:32PM -0700, Guenter Roeck wrote: > Requesting system reboot > sd 0:0:0:0: [sda] Synchronizing SCSI cache > ci_hdrc ci_hdrc.1: remove, state 4 > usb usb2: USB disconnect, device number 1 > ci_hdrc ci_hdrc.1: USB bus 2 deregistered > ci_hdrc ci_hdrc.0: remove, state 1 > usb usb1: USB disconnect, device number 1 > usb 1-1: USB disconnect, device number 2 > sd 0:0:0:0: [sda] Synchronizing SCSI cache > sd 0:0:0:0: [sda] Synchronize Cache(10) failed: Result: hostbyte=0x01 driverbyte=DRIVER_OK > > [ stuck here until qemu is killed ] > Hi Guenter, I'm actually observing the behavior described above even without my patch. The tip of my tree is currently at 573ae4f13f63 ("tee: add overflow check in register_shm_helper()"). I used git bisect to find what commit was causing the problem, and narrowed it down to this series[1]. I reverted all 4 patches in that series, and I no longer see this hang with my tree. [1]: https://lore.kernel.org/all/20220712221936.1199196-1-bvanassche@acm.org/ Are these patches part of the tree you're using for testing and observing this hang in? Thanks, Isaac