From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755523Ab3ADA5p (ORCPT ); Thu, 3 Jan 2013 19:57:45 -0500 Received: from mailout1.samsung.com ([203.254.224.24]:24282 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753889Ab3ADA5m (ORCPT ); Thu, 3 Jan 2013 19:57:42 -0500 X-AuditID: cbfee60e-b7f456d000003bef-21-50e62904626a Date: Fri, 04 Jan 2013 00:57:40 +0000 (GMT) From: Jongman Heo Subject: [3.8-rc2] stuck at reading CIFS mounted directory To: "linux-kernel@vger.kernel.org" Reply-to: jongman.heo@samsung.com MIME-version: 1.0 X-MTR: 20130104005201938@jongman.heo Msgkey: 20130104005201938@jongman.heo X-EPLocale: ko_KR.utf-8 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: 20130104005201938@jongman.heo X-ParentMTR: X-ArchiveUser: X-CPGSPASS: N Content-type: text/plain; charset=utf-8 MIME-version: 1.0 Message-id: <1839076.322591357261060518.JavaMail.weblogic@epml11> DLP-Filter: Pass X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrIKsWRmVeSWpSXmKPExsVy+t8zLV0WzWcBBj1P9Cwu75rD5sDo8XmT XABjFJdNSmpOZllqkb5dAlfGwh2nmQr2yFe8ftHD1sB4Qa6LkZNDSEBN4ubnQ4wgtoSAicS7 S13MELaYxIV769m6GLmAapYxSpy/eY8Zpmj2ou9MEIn5jBJTNnWydjFycLAIqEjMeOEPUsMm oCPR8X8/K4gtLGAlcWbScbAFIgKOEjsOfmWDWKwocW3pYjCbV0BQ4uTMJywgYySAxhw/JQYR VpV4sOMXG8RacYkLcy+xQ9i8EjPan7JA2HIS076ugTpNWuL8rA2MMPcv/v4YKs4vcez2DiaI 8bwST+4Hw4zZvfkL1HgBialnDjJClGhKvFknDRHmk1iz8C0LzJRdp5Yzw7Te3zKXCcRmBnpk SvdDdpBWZqDW9bv0Uf0EYjtKzPp9FBweLECbvk0+xDKBUWkWkrJZSCbNQpiErGQBI8sqRtHU guSC4qT0VBO94sTc4tK8dL3k/NxNjJB0wLeDcV6DxSFGAQ5GJR5eiztPA4RYE8uKK3MPMUpw MCuJ8L67DRTiTUmsrEotyo8vKs1JLT7E6AN01ERmKdHkfGCqyiuJNzQ2MDY0tDQ0M7U0NcAh rCTOq1QxPUBIID2xJDU7NbUgtQhmHBMHp1QDo637aWb7LYfzFn9xXHsjUiv115rk1zX3J0Sy ufP8qj2gdSDurcOH59qHm89J9TbdbSrRUTvmK/1x64sE7+2r/18OktqX8trm+ctz/gqvM7k6 WZrYihNklN93RTznrHt0Vmlis5+tBXdcvRJXS9cyJv4Ppxtm/HFItjq6fWFxXAx7+YajwRFm SizFGYmGWsxFxYkASNEnPTQDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrFKsWRmVeSWpSXmKPExsVy+t/tGbosms8CDA5M0rS4vGsOmwOjx+dN cgGMURk2GamJKalFCql5yfkpmXnptkrewfHO8aZmBoa6hpYW5koKeYm5qbZKLj4Bum6ZOUBD lRTKEnNKgUIBicXFSvp2NkX5pSWpChn5xSW2StFGBsZ6RqYmekbGBnomBrFWhgYGRqZAVQkZ GQt3nGYq2CNf8fpFD1sD4wW5LkZODiEBNYmbnw8xgtgSAiYSsxd9Z4KwxSQu3FvP1sXIBVQz n1FiyqZO1i5GDg4WARWJGS/8QWrYBHQkOv7vZwWxhQWsJM5MOg42R0TAUWLHwa9sEPMVJa4t XQxm8woISpyc+YQFZIwE0Jjjp8QgwqoSD3b8YoNYKy5xYe4ldgibV2JG+1MWCFtOYtrXNcwQ trTE+VkbGGHOXPz9MVScX+LY7R1MEON5JZ7cD4YZs3vzF6jxAhJTzxxkhCjRlHizThoizCex ZuFbFpgpu04tZ4Zpvb9lLjhAmIEemdL9kB2klRmodf0ufVQ/gdiOErN+H2WdwCg7C0lqFpLu WQjdyEoWMLKsYhRNLUguKE5KTzXRK07MLS7NS9dLzs/dxAhOQM/4djDOa7A4xCjAwajEw2tx 52mAEGtiWXFl7iFGCQ5mJRHed7eBQrwpiZVVqUX58UWlOanFhxh9gPE1kVlKNDkfmBzzSuIN jQ2MDQ0tzQ1MDY0scAgrifMqVUwPEBJITyxJzU5NLUgtghnHxMEp1cDYXP96/tZf8T4l5/JF WIyjZt3fF5QhsUT4pHbbpvT8uYecuBpeBhy0v8HAVm7AldP+9AD7r1s6Ogs0rqo6Jvz9eoZn 0yErzpg/PyZyfHs9kXfZmayuKVW7g2ctleY9Ir3h4+WUDdcMSuf/eb+QfdOrhLJ9J3Zs/rFt geXJu0psDRd859ma8XM7KbEUZyQaajEXFScCAKe/GUttAwAA 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 r040vjME012716 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++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I