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[147.75.199.223]) by mx.google.com with ESMTPS id h5-20020a37de05000000b0078f04a252e0si6114091qkj.230.2024.04.20.08.56.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Apr 2024 08:56:44 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-152317-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=i-love.sakura.ne.jp); spf=pass (google.com: domain of linux-kernel+bounces-152317-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-152317-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 567AD1C2082A for ; Sat, 20 Apr 2024 15:56:44 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DF49D3BB35; Sat, 20 Apr 2024 15:56:40 +0000 (UTC) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp [202.181.97.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C591E3AC2B for ; Sat, 20 Apr 2024 15:56:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.181.97.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713628600; cv=none; b=I2j6Jmrapd/kt6NDc24XwnZ1kZssNQC0BCx06x584Z3QdvR3KSvP/FHGvSQBcov44qUlLwJKfeoI9ZpoHqkDNT6MYh55Cg/J3CYn64yhoOiNfxv7q4ooW1KrO5kRctC1SI+DS9e60r4RSxb1kc2uvoEzUXv6khcTegFFsIrwZdY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713628600; c=relaxed/simple; bh=MrauLE7vTIJ56o0G5yI1/rmSGSVS4GvOYwtIC8oySNA=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=XlBcqK737RF49YiprLD8/P1F4k3ADNONgXXCW5+QZ/RBg68XmSMQ1J1twe3QoPFkshSNxPcO/DzSIQDByta5nBZWPsI//SHQi6oh2KkyZfsYJG5j35bsXs5AkR1dLThLWETl15alNLbEYC03ajgjKGDHNWfqXa3K+Rb/ypUhrtM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp; spf=pass smtp.mailfrom=I-love.SAKURA.ne.jp; arc=none smtp.client-ip=202.181.97.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=I-love.SAKURA.ne.jp Received: from fsav313.sakura.ne.jp (fsav313.sakura.ne.jp [153.120.85.144]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 43KFuXli052608; Sun, 21 Apr 2024 00:56:33 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav313.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav313.sakura.ne.jp); Sun, 21 Apr 2024 00:56:33 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav313.sakura.ne.jp) Received: from [192.168.1.6] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 43KFuWKB052604 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NO); Sun, 21 Apr 2024 00:56:33 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <5211f90a-f4e1-4a2c-a566-a06939f467bf@I-love.SAKURA.ne.jp> Date: Sun, 21 Apr 2024 00:56:32 +0900 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [trace?] [bpf?] possible deadlock in pwq_dec_nr_in_flight To: syzbot , linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000005143c806160c8d98@google.com> Content-Language: en-US From: Tetsuo Handa In-Reply-To: <0000000000005143c806160c8d98@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit #syz fix: bpf, sockmap: Prevent lock inversion deadlock in map delete elem