From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EEE8D148FE6 for ; Fri, 3 Jan 2025 00:46:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735865164; cv=none; b=W95LJOxXBks4RQeZHEA8bVs7d6KJjTJ6OPBUnhkzSmRLO/BH2/4a9UTiJN6yqlvqHE1FcyaK2YwsscjTrPt3aTmZiJBe+3UJzzmpR97LBlnHBFiz2fKenbUngvkH6X6wultRHg8LAXY1xl1BgNtrkMhO1Vzxv3H7EQ9UXZDpe7Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735865164; c=relaxed/simple; bh=dFeSjNAmhYRPFDoMVHhliKC8qfP++MZ3qf1PdPFQxvs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=DJCPhAhtzs2o9UWQ22LpVjBjX1T5BQF0aHDKxMGSGV/sLev+pePUCxQ5CCY2ofV/wwOAPG5lHoX3vFCVgsVGLPxFXwnieCQsS2vbC/ISonb13iew9mRy/GWXEgiPDluSouyaEPFI+kf7DFtuHI0Bj0m6WqITVZLwSbVadmhd3dI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-3a81684bac0so243741345ab.0 for ; Thu, 02 Jan 2025 16:46:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735865162; x=1736469962; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=tYrkFQ7I1vK/8bZLkAm/VSldpl3A1n3rZuJVzqWrdzs=; b=AT2B/crK4r073V5+w+4oF8ph/fem2xHgVFep7ly/LLoQf3c4tCj4IbIYWw1/uHOlA5 y/zrDug1eY8DDiMD+UBkFCGunCU9zE/4lsacRG9QuFohksOA/sfmhVZ6N1HvqZBeV5qK 8mGPLUlOK+ym5RM+GjTeZLuVOszEUYvGv8EzlutdXzM8wen5IFbWF7NVZtGea/BTerUb H5IieDZ6VZoTkOmRRwR8o+r/c8wnpuX21D9nKTUzTVwlZZCDkwG1FfeHuV8/wdQH1GoF kuiI5SSuhsAj04Vh8ao03x/EgtN5IyQy214VZ1bZJUaRj3eFLjdClLmLZP8jP3yBou4B j22w== X-Forwarded-Encrypted: i=1; AJvYcCXlhEUP4eLYe+oXny55Z6FmdcWUwZmIjsnP11VDIWu+/6sUeUNIQQh0sjZQ5K/Bk2Y0mC3VyCsd31MqFiU=@vger.kernel.org X-Gm-Message-State: AOJu0Yxy2NT22nEmxlC7l08IlZfvoenSb8jYdZ0U5Y3O3Fwaq7YxqyWh uKgs1QfFEsd02W9NhqJ0fS7qYcq+5QtKaXr3nf5DLUm+QjVl6vSVHfkCEWaq8Ok2UiNQHSfCFpS /dmEmqay+sxTwqa5WU9GWxeobZ3B63CSsBfHRcW6RFfwzAC/OF7n3k4U= X-Google-Smtp-Source: AGHT+IGwF9Xn5VdN0IylmHFQfxLyPfRqdP7j5S3e+7V5wVpAQEJJ5dRCStikzHWMjN3KyF+eWkeqkhfSMYMNh/GiJpfZmyrJzdqv Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2687:b0:3a7:e83c:2d10 with SMTP id e9e14a558f8ab-3c2d5b37857mr460147425ab.24.1735865162093; Thu, 02 Jan 2025 16:46:02 -0800 (PST) Date: Thu, 02 Jan 2025 16:46:02 -0800 In-Reply-To: <6756b479.050a0220.a30f1.0196.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6777334a.050a0220.3a8527.0058.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in mas_preallocate (2) From: syzbot To: Liam.Howlett@oracle.com, akpm@linux-foundation.org, davem@davemloft.net, jannh@google.com, jhs@mojatatu.com, jiri@resnulli.us, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, vinicius.gomes@intel.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 Author: Vinicius Costa Gomes Date: Sat Sep 29 00:59:43 2018 +0000 tc: Add support for configuring the taprio scheduler bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=117df818580000 start commit: feffde684ac2 Merge tag 'for-6.13-rc1-tag' of git://git.ker.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=137df818580000 console output: https://syzkaller.appspot.com/x/log.txt?x=157df818580000 kernel config: https://syzkaller.appspot.com/x/.config?x=50c7a61469ce77e7 dashboard link: https://syzkaller.appspot.com/bug?extid=882589c97d51a9de68eb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e8a8df980000 Reported-by: syzbot+882589c97d51a9de68eb@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection