From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756639Ab3AIDRp (ORCPT ); Tue, 8 Jan 2013 22:17:45 -0500 Received: from mailout2.samsung.com ([203.254.224.25]:48404 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756279Ab3AIDRn (ORCPT ); Tue, 8 Jan 2013 22:17:43 -0500 X-AuditID: cbfee612-b7f686d0000028ad-5a-50ece1552e10 Date: Wed, 09 Jan 2013 03:17:41 +0000 (GMT) From: =?euc-kr?B?x+PBvri4?= Subject: Re: Re: [3.8-rc2] stuck at reading CIFS mounted directory To: Jeff Layton , Suresh Jayaraman Cc: "linux-kernel@vger.kernel.org" , linux-cifs Reply-to: jongman.heo@samsung.com MIME-version: 1.0 X-MTR: 20130109030241847@jongman.heo Msgkey: 20130109030241847@jongman.heo X-EPLocale: ko_KR.euc-kr X-Priority: 3 X-EPWebmail-Msg-Type: personal X-EPWebmail-Reply-Demand: 0 X-EPApproval-Locale: X-EPHeader: ML X-EPTrCode: X-EPTrName: X-MLAttribute: X-RootMTR: 20130109030241847@jongman.heo X-ParentMTR: X-ArchiveUser: X-CPGSPASS: N Content-type: text/plain; charset=euc-kr MIME-version: 1.0 Message-id: <16401870.457771357701460059.JavaMail.weblogic@epml11> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrLKsWRmVeSWpSXmKPExsVy+t8zbd3Qh28CDJb8krS4vGsOmwOjx+dN cgGMUVw2Kak5mWWpRfp2CVwZRw7uYir49IKxYur/A8wNjB8eMXYxcnIICahJ3Px8CMyWEDCR mNs8hQ3CFpO4cG89kM0FVLOMUeJnbwsbTFHbqTZmiMR8RomJm7rAulkEVCRu7bwCVsQmYCZx 7PxvsLiwgJPElznfmUBsEYEgiWsP1gDZHBzMAnkS+55JQByhKHFt6WKwVl4BQYmTM5+wgJRI AI28ssoIIqwq0bH6FdSdEhKzpl9ghbB5JWa0P2WBsOUkpn1dwwxhS0ucn7WBEeaXxd8fQ8X5 JY7d3sEEMZ5X4sn9YJgxuzd/gfpQQGLqmYNQrZoSXya9h4rzSaxZ+JYFZsyuU8uZYXrvb5kL 9iAz0CdTuh+yQ9haEl9+7EPzFYjtJLHm+SO2CYzKs5CkZiFpn4WkHVnNAkaWVYyiqQXJBcVJ 6akWesWJucWleel6yfm5mxghiUFoB+OyBotDjAIcjEo8vA+mvQkQYk0sK67MPcQowcGsJMJ7 1xsoxJuSWFmVWpQfX1Sak1p8iDEZGH0TmaVEk/OBSSuvJN7Q2MDY0NDS0MzU0tSANGElcV7O iukBQgLpiSWp2ampBalFMFuYODilGhj96l8Zzf+6f77G3r3TLe/nSB1+GLfgNYfabMad0gKP tBtn7NNyP/Txg++Njpbyr2YW65p/bq2xMd+tmLHgz/IYt17+16KtPyXMsm1FKpZv4jgjssH4 6zlTxayfhkZNjje7zqvOe/WY3UWn/N1eiWsBwbEJR/myRFaH/N5bqJPit1T0zGbtQzlKLMUZ iYZazEXFiQAh5VaLUAMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpik+LIzCtJLcpLzFFi42I5/e/2dN3Qh28CDJa8ErS4vGsOmwOjx+dN cgGMURk2GamJKalFCql5yfkpmXnptkrewfHO8aZmBoa6hpYW5koKeYm5qbZKLj4Bum6ZOUBD lRTKEnNKgUIBicXFSvp2NkX5pSWpChn5xSW2StFGBsZ6RqYmekbGBnomBrFWhgYGRqZAVQkZ GUcO7mIq+PSCsWLq/wPMDYwfHjF2MXJyCAmoSdz8fAjMlhAwkWg71cYMYYtJXLi3nq2LkQuo Zj6jxMRNXWBFLAIqErd2XmEDsdkEzCSOnf8NFhcWcJL4Muc7E4gtIhAkce3BGiCbg4NZIE9i 3zMJiF2KEteWLgZr5RUQlDg58wkLSIkE0Mgrq4wgwqoSHatfQZ0jITFr+gVWCJtXYkb7UxYI W05i2tc1UGdKS5yftYER5uTF3x9Dxfkljt3ewQQxnlfiyf1gmDG7N39hg7AFJKaeOQjVqinx ZdJ7qDifxJqFb1lgxuw6tZwZpvf+lrlgDzIDfTKl+yE7hK0l8eXHPjRfgdhOEmueP2KbwCg3 C0lqFpL2WUjakdUsYGRZxSiaWpBcUJyUnmqhV5yYW1yal66XnJ+7iRGcop4J7WBc1mBxiFGA g1GJh/fBtDcBQqyJZcWVuYcYJTiYlUR473oDhXhTEiurUovy44tKc1KLDzEmA6NvIrOUaHI+ MH3mlcQbGhsYGxpamhuYGhpZkCasJM7LWTE9QEggPbEkNTs1tSC1CGYLEwenVANj8LOpoptP yCn76gvJK8fbuRixKhRr8kWHLgvds5BH29WsvWG/hppC11s5RnVHy87tKuv4vEqmCK/ztjaN WnH4/K+wkukm9779Twu5+LJg35Ydb64WMUvcuix+iuHF9FuBE29zrbb/+V0pXpBzZuDR/Sw5 jxm9/ravVyi79SiEfdoR3lbWPB8lluKMREMt5qLiRAAEJRuJlQMAAA== DLP-Filter: Pass X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id r093HoG2004211 Hi, > ------- Original Message ------- > Sender : Jeff Layton > Date : 2013-01-08 00:13 (GMT+09:00) > Title : Re: [3.8-rc2] stuck at reading CIFS mounted directory > > On Mon, 07 Jan 2013 15:10:05 +0530 > Suresh Jayaraman wrote: > > > (Cc linux-cifs@vger.kernel.org) > > > > On 01/04/2013 06:27 AM, Jongman Heo wrote: > > > Hi, all, > > > > > > In 3.8-rc2, access to CIFS-mounted directory (df, ls, or similar) got stuck with following message. > > > > > > It's mounted with... > > > mount -t cifs ///Share /mnt/window -o user=jongman.heo,password=xxxx,sec=ntlm > > > > > > > > > [16655.288591] INFO: task bash:4042 blocked for more than 120 seconds. > > > [16655.318117] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > > > [16655.318123] bash D dada9c5c 0 4042 1 0x00000004 > > > [16655.318132] dada9cd0 00000082 00000282 dada9c5c c09022c6 dada9c7c c044d316 c0c7c300 > > > [16655.318139] d6db3a7b 00000f09 c0c7c300 00000000 00000f09 f3b7b240 c04401ba 00000000 > > > [16655.318145] c0b9e0d8 f598e960 00000000 00000303 dada9c98 dada9c98 f598e960 00000006 > > > [16655.318150] Call Trace: > > > [16655.342785] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 > > > [16655.351554] [] ? __wake_up+0x3b/0x42 > > > [16655.358802] [] ? call_usermodehelper_fns+0x148/0x152 > > > [16655.358840] [] ? __request_module+0x15e/0x1a1 > > > [16655.358842] [] ? call_usermodehelper_freeinfo+0x19/0x19 > > > [16655.358845] [] schedule+0x51/0x53 > > > [16655.358847] [] schedule_preempt_disabled+0x8/0xa > > > [16655.384345] [] __mutex_lock_common+0xd6/0x123 > > > [16655.384430] [] __mutex_lock_slowpath+0x20/0x22 > > > [16655.384436] [] ? mutex_lock+0x18/0x25 > > > [16655.384441] [] mutex_lock+0x18/0x25 > > > [16655.384892] [] cifs_reconnect_tcon+0x170/0x252 > > > [16655.384953] [] ? should_resched+0x8/0x22 > > > [16655.384963] [] ? _cond_resched+0x8/0x1c > > > [16655.384969] [] smb_init+0x1d/0x6d > > > [16655.385023] [] CIFSSMBQPathInfo+0x4e/0x1e4 > > > [16655.385071] [] cifs_query_path_info+0x38/0x73 > > > [16655.385080] [] cifs_get_inode_info+0x122/0x3ac > > > [16655.385548] [] ? walk_component+0x14a/0x17a > > > [16655.385570] [] ? build_path_from_dentry+0xa3/0x19e > > > [16655.385585] [] ? build_path_from_dentry+0xa3/0x19e > > > [16655.385596] [] ? build_path_from_dentry+0xa3/0x19e > > > [16655.385601] [] ? getname_flags+0x59/0xeb > > > [16655.385606] [] ? _raw_spin_lock+0x8/0xa > > > [16655.385613] [] cifs_revalidate_dentry_attr+0x120/0x168 > > > [16655.385618] [] cifs_getattr+0x5e/0xe3 > > > [16655.385625] [] vfs_getattr+0x37/0x4e > > > [16655.385631] [] ? cifs_revalidate_dentry+0x20/0x20 > > > [16655.385639] [] vfs_fstatat+0x59/0x8a > > > [16655.385645] [] vfs_stat+0x19/0x1b > > > [16655.385652] [] sys_stat64+0x11/0x22 > > > [16655.385659] [] ? should_resched+0x8/0x22 > > > [16655.385668] [] ? _cond_resched+0x8/0x1c > > > [16655.385674] [] ? task_work_run+0x6d/0x79 > > > [16655.385825] [] ? __do_page_fault+0x33b/0x33b > > > [16655.385834] [] ? do_page_fault+0x8/0xa > > > [16655.385840] [] sysenter_do_call+0x12/0x2c > > > > > > N?????r??y???b?X???v?^?)?{.n?+????{????zX?????}????z?&j:+v???????zZ+??+zf???h???~????i???z??w????????&?)?f??^j?y?m??@A?a??? 0??h??i > > > > > > > > > Looks like it's waiting on the session_mutex to become free. The > question is what's holding it and why. Some questions: > > 1) is this a regression? If so, what version were you using previously? Yeah, regression. IIRC I didn't have this issue with 3.7. > 2) any other processes stuck on on this mutex? What about the cifsd > thread for this mount? Is it stuck holding it? You may want to > "cat /proc//stack" on any other threads that might be related here > and see if you can figure out what they're doing. After the hang happens, CIFS is working well. Stack of cifsd doesn't show any interesting thing. [ORANGE@/mnt/window] ps ax | grep cifsd 1135 ? S 1:13 [cifsd] [ORANGE@/mnt/window] cat /proc/1135/stack [] sk_wait_data+0x63/0x9b [] tcp_recvmsg+0x3aa/0x780 [] inet_recvmsg+0x51/0x63 [] sock_recvmsg+0x80/0x9d [] kernel_recvmsg+0x2f/0x3f [] cifs_readv_from_socket+0x142/0x1d3 [] cifs_read_from_socket+0x1c/0x1e [] cifs_demultiplex_thread+0x701/0x72b [] kthread+0x6b/0x70 [] ret_from_kernel_thread+0x1b/0x28 [] 0xffffffff Host : Windows 7 Guest : VMWare Fedora 16 + 3.8 custom kernel I feel that the issue is more likely to happen in this case. mount cifs directory from VMWare guest -> go to S3 sleep mode (by closing lid of laptop) -> open lid -> check cifs directory of VMWare Following is more call stack trace I hit today. [23245.542488] INFO: task bash:2711 blocked for more than 120 seconds. [23245.571664] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23245.571672] bash D f3bd5c5c 0 2711 2689 0x00000000 [23245.580899] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23245.580910] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23245.580919] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23245.580928] Call Trace: [23245.603320] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23245.609972] [] ? __wake_up+0x3b/0x42 [23245.610114] [] ? call_usermodehelper_fns+0x148/0x152 [23245.610389] [] ? __request_module+0x15e/0x1a1 [23245.610397] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23245.610404] [] schedule+0x51/0x53 [23245.610409] [] schedule_preempt_disabled+0x8/0xa [23245.610894] [] __mutex_lock_common+0xd6/0x123 [23245.610914] [] __mutex_lock_slowpath+0x20/0x22 [23245.610920] [] ? mutex_lock+0x18/0x25 [23245.610925] [] mutex_lock+0x18/0x25 [23245.611495] [] cifs_reconnect_tcon+0x170/0x252 [23245.611506] [] ? resched_task+0x5e/0x61 [23245.620010] [] smb_init+0x1d/0x6d [23245.620183] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23245.620248] [] cifs_query_path_info+0x38/0x73 [23245.620265] [] cifs_get_inode_info+0x122/0x3ac [23245.620721] [] ? walk_component+0x14a/0x17a [23245.620736] [] ? build_path_from_dentry+0xa3/0x19e [23245.620742] [] ? build_path_from_dentry+0xa3/0x19e [23245.620748] [] ? build_path_from_dentry+0xa3/0x19e [23245.620754] [] ? getname_flags+0x1/0xeb [23245.620759] [] ? _raw_spin_lock+0x8/0xa [23245.620766] [] cifs_revalidate_dentry_attr+0x120/0x168 [23245.620772] [] cifs_getattr+0x5e/0xe3 [23245.620779] [] ? cp_new_stat64+0xef/0x101 [23245.620785] [] vfs_getattr+0x37/0x4e [23245.620790] [] ? cifs_revalidate_dentry+0x20/0x20 [23245.620796] [] vfs_fstatat+0x59/0x8a [23245.620816] [] vfs_stat+0x19/0x1b [23245.620828] [] sys_stat64+0x11/0x22 [23245.620887] [] sysenter_do_call+0x12/0x2c [23365.425634] INFO: task bash:2711 blocked for more than 120 seconds. [23365.425642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23365.425645] bash D f3bd5c5c 0 2711 2689 0x00000000 [23365.425653] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23365.425663] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23365.425672] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23365.425681] Call Trace: [23365.425696] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23365.425704] [] ? __wake_up+0x3b/0x42 [23365.425711] [] ? call_usermodehelper_fns+0x148/0x152 [23365.425717] [] ? __request_module+0x15e/0x1a1 [23365.425723] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23365.425728] [] schedule+0x51/0x53 [23365.425732] [] schedule_preempt_disabled+0x8/0xa [23365.425740] [] __mutex_lock_common+0xd6/0x123 [23365.425746] [] __mutex_lock_slowpath+0x20/0x22 [23365.425751] [] ? mutex_lock+0x18/0x25 [23365.425757] [] mutex_lock+0x18/0x25 [23365.425765] [] cifs_reconnect_tcon+0x170/0x252 [23365.425771] [] ? resched_task+0x5e/0x61 [23365.425777] [] smb_init+0x1d/0x6d [23365.425782] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23365.425790] [] cifs_query_path_info+0x38/0x73 [23365.425796] [] cifs_get_inode_info+0x122/0x3ac [23365.425804] [] ? walk_component+0x14a/0x17a [23365.425809] [] ? build_path_from_dentry+0xa3/0x19e [23365.425814] [] ? build_path_from_dentry+0xa3/0x19e [23365.425819] [] ? build_path_from_dentry+0xa3/0x19e [23365.425824] [] ? getname_flags+0x1/0xeb [23365.425829] [] ? _raw_spin_lock+0x8/0xa [23365.425835] [] cifs_revalidate_dentry_attr+0x120/0x168 [23365.425841] [] cifs_getattr+0x5e/0xe3 [23365.425847] [] ? cp_new_stat64+0xef/0x101 [23365.425852] [] vfs_getattr+0x37/0x4e [23365.425857] [] ? cifs_revalidate_dentry+0x20/0x20 [23365.425863] [] vfs_fstatat+0x59/0x8a [23365.425868] [] vfs_stat+0x19/0x1b [23365.425873] [] sys_stat64+0x11/0x22 [23365.425880] [] sysenter_do_call+0x12/0x2c [23485.230971] INFO: task bash:2711 blocked for more than 120 seconds. [23485.230979] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23485.230982] bash D f3bd5c5c 0 2711 2689 0x00000000 [23485.230990] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23485.231001] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23485.231009] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23485.231019] Call Trace: [23485.231117] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23485.231128] [] ? __wake_up+0x3b/0x42 [23485.231136] [] ? call_usermodehelper_fns+0x148/0x152 [23485.231142] [] ? __request_module+0x15e/0x1a1 [23485.231148] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23485.231153] [] schedule+0x51/0x53 [23485.231158] [] schedule_preempt_disabled+0x8/0xa [23485.231166] [] __mutex_lock_common+0xd6/0x123 [23485.231172] [] __mutex_lock_slowpath+0x20/0x22 [23485.231177] [] ? mutex_lock+0x18/0x25 [23485.231183] [] mutex_lock+0x18/0x25 [23485.231192] [] cifs_reconnect_tcon+0x170/0x252 [23485.231198] [] ? resched_task+0x5e/0x61 [23485.231204] [] smb_init+0x1d/0x6d [23485.231209] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23485.231217] [] cifs_query_path_info+0x38/0x73 [23485.231223] [] cifs_get_inode_info+0x122/0x3ac [23485.231231] [] ? walk_component+0x14a/0x17a [23485.231236] [] ? build_path_from_dentry+0xa3/0x19e [23485.231242] [] ? build_path_from_dentry+0xa3/0x19e [23485.231247] [] ? build_path_from_dentry+0xa3/0x19e [23485.231252] [] ? getname_flags+0x1/0xeb [23485.231257] [] ? _raw_spin_lock+0x8/0xa [23485.231263] [] cifs_revalidate_dentry_attr+0x120/0x168 [23485.231269] [] cifs_getattr+0x5e/0xe3 [23485.231275] [] ? cp_new_stat64+0xef/0x101 [23485.231280] [] vfs_getattr+0x37/0x4e [23485.231286] [] ? cifs_revalidate_dentry+0x20/0x20 [23485.231291] [] vfs_fstatat+0x59/0x8a [23485.231297] [] vfs_stat+0x19/0x1b [23485.231302] [] sys_stat64+0x11/0x22 [23485.231308] [] sysenter_do_call+0x12/0x2c [23605.036526] INFO: task bash:2711 blocked for more than 120 seconds. [23605.036533] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23605.036537] bash D f3bd5c5c 0 2711 2689 0x00000000 [23605.036545] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23605.036555] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23605.036564] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23605.036574] Call Trace: [23605.036588] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23605.036596] [] ? __wake_up+0x3b/0x42 [23605.036604] [] ? call_usermodehelper_fns+0x148/0x152 [23605.036609] [] ? __request_module+0x15e/0x1a1 [23605.036615] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23605.036620] [] schedule+0x51/0x53 [23605.036624] [] schedule_preempt_disabled+0x8/0xa [23605.036632] [] __mutex_lock_common+0xd6/0x123 [23605.036638] [] __mutex_lock_slowpath+0x20/0x22 [23605.036644] [] ? mutex_lock+0x18/0x25 [23605.036649] [] mutex_lock+0x18/0x25 [23605.036657] [] cifs_reconnect_tcon+0x170/0x252 [23605.036664] [] ? resched_task+0x5e/0x61 [23605.036669] [] smb_init+0x1d/0x6d [23605.036675] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23605.036682] [] cifs_query_path_info+0x38/0x73 [23605.036689] [] cifs_get_inode_info+0x122/0x3ac [23605.036696] [] ? walk_component+0x14a/0x17a [23605.036702] [] ? build_path_from_dentry+0xa3/0x19e [23605.036707] [] ? build_path_from_dentry+0xa3/0x19e [23605.036712] [] ? build_path_from_dentry+0xa3/0x19e [23605.036717] [] ? getname_flags+0x1/0xeb [23605.036721] [] ? _raw_spin_lock+0x8/0xa [23605.036728] [] cifs_revalidate_dentry_attr+0x120/0x168 [23605.036733] [] cifs_getattr+0x5e/0xe3 [23605.036740] [] ? cp_new_stat64+0xef/0x101 [23605.036745] [] vfs_getattr+0x37/0x4e [23605.036750] [] ? cifs_revalidate_dentry+0x20/0x20 [23605.036946] [] vfs_fstatat+0x59/0x8a [23605.037061] [] vfs_stat+0x19/0x1b [23605.037067] [] sys_stat64+0x11/0x22 [23605.037074] [] sysenter_do_call+0x12/0x2c [23724.844814] INFO: task bash:2711 blocked for more than 120 seconds. [23724.844826] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23724.844830] bash D f3bd5c5c 0 2711 2689 0x00000000 [23724.844838] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23724.844849] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23724.844857] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23724.844866] Call Trace: [23724.844881] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23724.844889] [] ? __wake_up+0x3b/0x42 [23724.844897] [] ? call_usermodehelper_fns+0x148/0x152 [23724.844903] [] ? __request_module+0x15e/0x1a1 [23724.844908] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23724.844913] [] schedule+0x51/0x53 [23724.844918] [] schedule_preempt_disabled+0x8/0xa [23724.844926] [] __mutex_lock_common+0xd6/0x123 [23724.844932] [] __mutex_lock_slowpath+0x20/0x22 [23724.844937] [] ? mutex_lock+0x18/0x25 [23724.844942] [] mutex_lock+0x18/0x25 [23724.844951] [] cifs_reconnect_tcon+0x170/0x252 [23724.844957] [] ? resched_task+0x5e/0x61 [23724.844963] [] smb_init+0x1d/0x6d [23724.844968] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23724.844976] [] cifs_query_path_info+0x38/0x73 [23724.844982] [] cifs_get_inode_info+0x122/0x3ac [23724.844990] [] ? walk_component+0x14a/0x17a [23724.844995] [] ? build_path_from_dentry+0xa3/0x19e [23724.845000] [] ? build_path_from_dentry+0xa3/0x19e [23724.845005] [] ? build_path_from_dentry+0xa3/0x19e [23724.845010] [] ? getname_flags+0x1/0xeb [23724.845015] [] ? _raw_spin_lock+0x8/0xa [23724.845021] [] cifs_revalidate_dentry_attr+0x120/0x168 [23724.845027] [] cifs_getattr+0x5e/0xe3 [23724.845033] [] ? cp_new_stat64+0xef/0x101 [23724.845038] [] vfs_getattr+0x37/0x4e [23724.845043] [] ? cifs_revalidate_dentry+0x20/0x20 [23724.845048] [] vfs_fstatat+0x59/0x8a [23724.845054] [] vfs_stat+0x19/0x1b [23724.845059] [] sys_stat64+0x11/0x22 [23724.845066] [] sysenter_do_call+0x12/0x2c [23844.651044] INFO: task bash:2711 blocked for more than 120 seconds. [23844.651052] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23844.651056] bash D f3bd5c5c 0 2711 2689 0x00000000 [23844.651063] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23844.651074] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23844.651082] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23844.651092] Call Trace: [23844.651106] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23844.651113] [] ? __wake_up+0x3b/0x42 [23844.651121] [] ? call_usermodehelper_fns+0x148/0x152 [23844.651127] [] ? __request_module+0x15e/0x1a1 [23844.651133] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23844.651138] [] schedule+0x51/0x53 [23844.651142] [] schedule_preempt_disabled+0x8/0xa [23844.651150] [] __mutex_lock_common+0xd6/0x123 [23844.651156] [] __mutex_lock_slowpath+0x20/0x22 [23844.651162] [] ? mutex_lock+0x18/0x25 [23844.651167] [] mutex_lock+0x18/0x25 [23844.651176] [] cifs_reconnect_tcon+0x170/0x252 [23844.651182] [] ? resched_task+0x5e/0x61 [23844.651188] [] smb_init+0x1d/0x6d [23844.651193] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23844.651201] [] cifs_query_path_info+0x38/0x73 [23844.651207] [] cifs_get_inode_info+0x122/0x3ac [23844.651215] [] ? walk_component+0x14a/0x17a [23844.651220] [] ? build_path_from_dentry+0xa3/0x19e [23844.651225] [] ? build_path_from_dentry+0xa3/0x19e [23844.651230] [] ? build_path_from_dentry+0xa3/0x19e [23844.651235] [] ? getname_flags+0x1/0xeb [23844.651240] [] ? _raw_spin_lock+0x8/0xa [23844.651246] [] cifs_revalidate_dentry_attr+0x120/0x168 [23844.651252] [] cifs_getattr+0x5e/0xe3 [23844.651258] [] ? cp_new_stat64+0xef/0x101 [23844.651263] [] vfs_getattr+0x37/0x4e [23844.651269] [] ? cifs_revalidate_dentry+0x20/0x20 [23844.651274] [] vfs_fstatat+0x59/0x8a [23844.651280] [] vfs_stat+0x19/0x1b [23844.651285] [] sys_stat64+0x11/0x22 [23844.651292] [] sysenter_do_call+0x12/0x2c [23964.456484] INFO: task bash:2711 blocked for more than 120 seconds. [23964.456492] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [23964.456496] bash D f3bd5c5c 0 2711 2689 0x00000000 [23964.456503] f3bd5cd0 00000086 00000282 f3bd5c5c c0902306 f3bd5c7c c044d2be c0c7c300 [23964.456514] b538a613 000014fd c0c7c300 00000000 000014fd f3bf0c90 c0440162 00000000 [23964.456523] c0b9e0d8 f3b8ab60 00000000 00000303 f3bd5c98 f3bd5c98 f3b8ab60 00000006 [23964.456532] Call Trace: [23964.456547] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [23964.456559] [] ? __wake_up+0x3b/0x42 [23964.456568] [] ? call_usermodehelper_fns+0x148/0x152 [23964.456573] [] ? __request_module+0x15e/0x1a1 [23964.456579] [] ? call_usermodehelper_freeinfo+0x19/0x19 [23964.456584] [] schedule+0x51/0x53 [23964.456589] [] schedule_preempt_disabled+0x8/0xa [23964.456597] [] __mutex_lock_common+0xd6/0x123 [23964.456603] [] __mutex_lock_slowpath+0x20/0x22 [23964.456608] [] ? mutex_lock+0x18/0x25 [23964.456614] [] mutex_lock+0x18/0x25 [23964.456622] [] cifs_reconnect_tcon+0x170/0x252 [23964.456629] [] ? resched_task+0x5e/0x61 [23964.456635] [] smb_init+0x1d/0x6d [23964.456640] [] CIFSSMBQPathInfo+0x4e/0x1e4 [23964.456648] [] cifs_query_path_info+0x38/0x73 [23964.456654] [] cifs_get_inode_info+0x122/0x3ac [23964.456662] [] ? walk_component+0x14a/0x17a [23964.456667] [] ? build_path_from_dentry+0xa3/0x19e [23964.456672] [] ? build_path_from_dentry+0xa3/0x19e [23964.456678] [] ? build_path_from_dentry+0xa3/0x19e [23964.456683] [] ? getname_flags+0x1/0xeb [23964.456687] [] ? _raw_spin_lock+0x8/0xa [23964.456693] [] cifs_revalidate_dentry_attr+0x120/0x168 [23964.456699] [] cifs_getattr+0x5e/0xe3 [23964.456705] [] ? cp_new_stat64+0xef/0x101 [23964.456711] [] vfs_getattr+0x37/0x4e [23964.456716] [] ? cifs_revalidate_dentry+0x20/0x20 [23964.456721] [] vfs_fstatat+0x59/0x8a [23964.456727] [] vfs_stat+0x19/0x1b [23964.456732] [] sys_stat64+0x11/0x22 [23964.456739] [] sysenter_do_call+0x12/0x2c {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I