From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 7728936AF6 for ; Wed, 8 Nov 2023 19:13:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=manguebit.com header.i=@manguebit.com header.b="NSYxispb" Received: from mx.manguebit.com (mx.manguebit.com [167.235.159.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DAD5E1FD6 for ; Wed, 8 Nov 2023 11:13:20 -0800 (PST) Message-ID: <5890a4eec52f50b271ba8188f1ace1c9.pc@manguebit.com> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manguebit.com; s=dkim; t=1699470799; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Ou9KQUrClMN3Sb7XT7/A2L70fkRJAOQvDFKgrPmJRPE=; 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ORIGINATING; auth=pass smtp.auth=pc@manguebit.com smtp.mailfrom=pc@manguebit.com ARC-Seal: i=1; s=dkim; d=manguebit.com; t=1699470799; a=rsa-sha256; cv=none; b=IxbT/31gngAMUX40xw6lIWZAy8OcdTdyUuxOd6/9RhQD+tHQtiZ1AFlIyg3QpRaoOV2JK9 Ggo0KcDQLQULLidxgD9vzamvmLertUkg47FcVDp86UTf8ERtdsd7jHoqdLCkTDGREC959m GaStX9S+cJsDxEcJ/sc4BsXPiEA/GHsZf1CC2q+4TRfoYANY6wOd7ofE2sU15Xtl/6e3rK dyS2gAEbbvpCJTN/uPQoe2vMkumoFjdOpSkoCgoRDm4uQSrQv1KF9lVur7z2Jao346Iqwf lINfajUGEe6lnjO9zZ+Ql0VKXxb9xVlLKvViHAE4D9kBZkpSSb7EuLiAMlGO7A== From: Paulo Alcantara To: nspmangalore@gmail.com, smfrench@gmail.com, bharathsm.hsk@gmail.com, linux-cifs@vger.kernel.org Cc: Shyam Prasad N Subject: Re: [PATCH 12/14] cifs: handle when server stops supporting multichannel In-Reply-To: References: <20231030110020.45627-1-sprasad@microsoft.com> <20231030110020.45627-12-sprasad@microsoft.com> Date: Wed, 08 Nov 2023 16:13:16 -0300 Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Also found memory leaks ... unreferenced object 0xffff88801c8ca600 (size 192): comm "python3", pid 14002, jiffies 4300343883 (age 4393.481s) hex dump (first 32 bytes): f0 a2 8b 17 80 88 ff ff f0 a2 8b 17 80 88 ff ff ................ 01 00 00 00 00 00 00 00 00 ca 9a 3b 00 00 00 00 ...........;.... backtrace: [] __kmem_cache_alloc_node+0x295/0x2d0 [] kmalloc_trace+0x2a/0xc0 [] parse_server_interfaces+0x4ed/0xcc0 [cifs] [] SMB3_request_interfaces+0x163/0x2b0 [cifs] [] smb3_qfs_tcon+0x16d/0x2c0 [cifs] [] cifs_mount_get_tcon+0x3b1/0x550 [cifs] [] dfs_mount_share+0xcc1/0xfa0 [cifs] [] cifs_mount+0xda/0x4c0 [cifs] [] cifs_smb3_do_mount+0x1e5/0xcc0 [cifs] [] smb3_get_tree+0x16d/0x380 [cifs] [] vfs_get_tree+0x4d/0x190 [] fc_mount+0x13/0x60 [] cifs_do_automount.isra.0+0x3c4/0x4d0 [cifs] [] cifs_d_automount+0x4d/0x1b0 [cifs] [] __traverse_mounts+0xcc/0x300 [] step_into+0x54b/0xd30 and leaked server connections Display Internal CIFS Data Structures for Debugging --------------------------------------------------- CIFS Version 2.46 Features: DFS,FSCACHE,STATS2,DEBUG2,ALLOW_INSECURE_LEGACY,CIFS_POSIX,UPCALL(SPNEGO),XATTR,ACL,WITNESS CIFSMaxBufSize: 16384 Active VFS Requests: 0 Servers: 1) ConnectionId: 0x70e Hostname: w22-root2.gandalf.test ClientGUID: 44DAE383-3E91-3042-85FE-87D6F17298B7 Number of credits: 1,1,1 Dialect 0x210 Server capabilities: 0x300007 TCP status: 4 Instance: 77 Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840 In Send: 0 In MaxReq Wait: 0 DFS leaf full path: \\W22-ROOT1.GANDALF.TEST\dfstest3\link10 Sessions: [NONE] 2) ConnectionId: 0x706 Hostname: w22-root2.gandalf.test ClientGUID: C8CF45E4-F70D-DF40-8821-0234A2E20DD4 Number of credits: 1,1,1 Dialect 0x210 Server capabilities: 0x300007 TCP status: 4 Instance: 81 Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840 In Send: 0 In MaxReq Wait: 0 DFS leaf full path: \\W22-ROOT1.GANDALF.TEST\dfstest3\link6 Sessions: [NONE] 3) ConnectionId: 0x6ae Hostname: w22-root1.gandalf.test ClientGUID: AB059CDD-12FF-B94D-B30C-9E1928ACBA95 Number of credits: 1,1,1 Dialect 0x210 Server capabilities: 0x300007 TCP status: 4 Instance: 96 Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840 In Send: 0 In MaxReq Wait: 0 DFS leaf full path: \\W22-ROOT1.GANDALF.TEST\dfstest3\link9 Sessions: [NONE] ... while running reconnect tests.