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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2492FC3DA7F for ; Wed, 31 Jul 2024 14:08:36 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 406FF6B0082; Wed, 31 Jul 2024 10:08:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3B6D56B0083; Wed, 31 Jul 2024 10:08:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 256AF6B0085; Wed, 31 Jul 2024 10:08:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 077426B0082 for ; Wed, 31 Jul 2024 10:08:36 -0400 (EDT) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 899721403AF for ; Wed, 31 Jul 2024 14:08:35 +0000 (UTC) X-FDA: 82400228190.04.7E07641 Received: from mail-qk1-f173.google.com (mail-qk1-f173.google.com [209.85.222.173]) by imf07.hostedemail.com (Postfix) with ESMTP id 77A9540021 for ; Wed, 31 Jul 2024 14:08:33 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=rowland.harvard.edu header.s=google header.b="Q+udh17/"; dmarc=pass (policy=none) header.from=rowland.harvard.edu; spf=pass (imf07.hostedemail.com: domain of stern@g.harvard.edu designates 209.85.222.173 as permitted sender) smtp.mailfrom=stern@g.harvard.edu ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1722434851; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=OmbqZ+SwBt9pWBiENqDvPp5IsdPjBdZOSucm6Q9PEz0=; b=WA4b68U4lYmyK8S65/7bksQJWkK6FxlVIYQUhKH3ZnNKFLuHjRP5OCpxHpTsy3/lPNtTnT dRh4jQTt++WGNSdwyRIdfmWpb4P616hP/lrUKPOwnxnwGKl3HzJmZaeizqZOvk/sTywl6t x2mVJHyCB2YvC0pH+1Xu6FsLCaS9vx4= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1722434851; a=rsa-sha256; cv=none; b=f273ixIsWsSgIBxGbRL8lDcd7Sr00CD6Ahs6LgyPzSFJI/u7oWbIuBGRI3XDcKB5FVMz0S SSQ8LTwh7m7j1mq6VweUjyanpi5Yxo2C+79+YbMvJcgiJSj55yqYFTHaq/eJB4DOCxnnxf DKNn90WPt5I/Spo7517/z2hXCLSOCoQ= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=pass header.d=rowland.harvard.edu header.s=google header.b="Q+udh17/"; dmarc=pass (policy=none) header.from=rowland.harvard.edu; spf=pass (imf07.hostedemail.com: domain of stern@g.harvard.edu designates 209.85.222.173 as permitted sender) smtp.mailfrom=stern@g.harvard.edu Received: by mail-qk1-f173.google.com with SMTP id af79cd13be357-7a20c529c77so47713785a.1 for ; Wed, 31 Jul 2024 07:08:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rowland.harvard.edu; s=google; t=1722434912; x=1723039712; darn=kvack.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=OmbqZ+SwBt9pWBiENqDvPp5IsdPjBdZOSucm6Q9PEz0=; b=Q+udh17/kfWCOpsvkNVMr3kRJWyaCn6A8knQv7VcTliejrEOEH9wPUOPc6ReItIxdc gzQgnmK31duGrOG91eL5DHKxfHaxwi00lr2pzgpN5ZrEheuzGB52wISV4mUu94+pnnUL qjalmarcy7SD1HtlSy/mAC8KPa5AsBwnoBqEz3hHyF7TTqe6zsT3eFu9OAQU+phxuq9+ BAGzpSft2Pnb+3g2hcPqnDMmdmsykIX3ZHYHrf9N1M7l5uo6tVb0en/4EBRql3u6ZjZe IayZj+HFW/XE8Df4e0HhM6rEwL/hALtq5PIoAVo9A4rg6UZJJtspQDZfXTuBZeaked9A CFtw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722434912; x=1723039712; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=OmbqZ+SwBt9pWBiENqDvPp5IsdPjBdZOSucm6Q9PEz0=; b=pyA2oDMp8erW/ypAj+AuUs2kfdJFfq9cvtfCldFNU/PWsIpVoOTtXvC9MCnAW5bWVh 2ogk9XBkuRuTQOEV4BVLRcnGW2D04EqfS9z6glwW0AflscDgEZRpvL2+PWNs2pqqecnh IJNyHAO4bQvjaAKgONE+MGQh4YsSM/+fy2CWiHFN+F+93g+onsfSrsBAxWF5evpef9Dm bU3z1uqHeKKc5M/F5HMtbeytMBlr3JlefF0PbcBbGW8NkjiVpvMjevdE0v+VpYARYocU /DXHkLnf8J0M0+p6+322chG8Z5IkNXkJd/p4nMzp3znjWYW5xXp0bGHaG/edwmwzOQkh TBrQ== X-Forwarded-Encrypted: i=1; AJvYcCW4O6NsTMvb7hB0WvKKbDM1dcRYzI1FaojCGUnaNWmcbISAfCiAApHj6LEf91/DLrCBVEVxHOeP+8HwQ2ccT9pPk/o= X-Gm-Message-State: AOJu0YxQtglw1I5iz+Ub3uCX5OdmKfe2R8Qz+DaPl95SkePryqBYR5X+ AUY7RnbVs3+xMKlczA25SNZFcNHypcUZPUXifN1T/WQxGjpHxWmpOs5s410eqg== X-Google-Smtp-Source: AGHT+IE6kPGJyplTmL+CdLHYVHoAqc9Zp1sYnDW3Lj3rFha6QTxDYm53FQkQABVQPDmkoe6eOIvPbg== X-Received: by 2002:a05:620a:4143:b0:79f:10e6:2ee with SMTP id af79cd13be357-7a1e5260140mr1740167585a.41.1722434912481; Wed, 31 Jul 2024 07:08:32 -0700 (PDT) Received: from rowland.harvard.edu (iolanthe.rowland.org. [192.131.102.54]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7a1fdd2f90csm210796285a.24.2024.07.31.07.08.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jul 2024 07:08:32 -0700 (PDT) Date: Wed, 31 Jul 2024 10:08:29 -0400 From: Alan Stern To: syzbot Cc: akpm@linux-foundation.org, brauner@kernel.org, davem@davemloft.net, dvyukov@google.com, elver@google.com, glider@google.com, gregkh@linuxfoundation.org, hdanton@sina.com, jhs@mojatatu.com, kasan-dev@googlegroups.com, keescook@chromium.org, kuba@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, luyun@kylinos.cn, netdev@vger.kernel.org, pctammela@mojatatu.com, rafael@kernel.org, syzkaller-bugs@googlegroups.com, victor@mojatatu.com, vinicius.gomes@intel.com, viro@zeniv.linux.org.uk, vladimir.oltean@nxp.com Subject: Re: [syzbot] [usb?] INFO: rcu detected stall in __run_timer_base Message-ID: <3eb71b17-33c3-42fa-86e6-459c3bfdbf29@rowland.harvard.edu> References: <00000000000022a23c061604edb3@google.com> <000000000000d61bb8061e89caa5@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000d61bb8061e89caa5@google.com> X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 77A9540021 X-Stat-Signature: x5x7n1nx4yzk4m7tmcgqnsoa4huyu3g8 X-Rspam-User: X-HE-Tag: 1722434913-512726 X-HE-Meta: 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 cpYXLXUP 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jul 31, 2024 at 04:57:02AM -0700, syzbot wrote: > syzbot suspects this issue was fixed by commit: > > commit 22f00812862564b314784167a89f27b444f82a46 > Author: Alan Stern > Date: Fri Jun 14 01:30:43 2024 +0000 > > USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14f906bd980000 > start commit: 89be4025b0db Merge tag '6.10-rc1-smb3-client-fixes' of git.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=b9016f104992d69c > dashboard link: https://syzkaller.appspot.com/bug?extid=1acbadd9f48eeeacda29 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145ed3fc980000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11c1541c980000 > > If the result looks correct, please mark the issue as fixed by replying with: > #syz fix: USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection