From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751388Ab2LZFiT (ORCPT ); Wed, 26 Dec 2012 00:38:19 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:23625 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750746Ab2LZFiQ (ORCPT ); Wed, 26 Dec 2012 00:38:16 -0500 X-AuditID: cbfee60e-b7f856d0000024d4-0e-50da8d40cf31 Date: Wed, 26 Dec 2012 05:38:08 +0000 (GMT) From: Jongman Heo Subject: [3.8-rc1+] BUG: unable to handle kernel NULL pointer dereference, wait_iff_congested+0x45/0xdd To: linux-kernel@vger.kernel.org Reply-to: jongman.heo@samsung.com MIME-version: 1.0 X-MTR: 20121226053658727@jongman.heo Msgkey: 20121226053658727@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: 20121226053058542@jongman.heo X-ParentMTR: 20121226053058542@jongman.heo X-ArchiveUser: X-CPGSPASS: N Content-type: text/plain; charset=euc-kr MIME-version: 1.0 Message-id: <27934635.301401356500288241.JavaMail.weblogic@epml05> DLP-Filter: Pass X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrEKsWRmVeSWpSXmKPExsVy+t8zbV2H3lsBBl0rZSwu75rD5sDo8XmT XABjFJdNSmpOZllqkb5dAlfG8gdL2AqOSVT0XTvO1sD4QbyLkZNDSEBN4ubnQ4wgtoSAicTc 13PZIWwxiQv31rN1MXIB1SxjlLjacJkJpuj7+/+sEIn5jBJff/xmBkmwCKhKfLx8hwXEZhPQ kej4v58VxBYWSJc4cHk6G4gtAlSz4+wKdojNihLXli4Gi/MKCEqcnPkEqJcDaIGKxMSb+SAm L1D5+Vd5EGslJGZNv8AKYfNKzGh/ygJhy0lM+7qGGcKWljg/awMjzP2Lvz+GivNLHLu9gwli Oq/Ek/vBMGN2b/7CBmELSEw9c5ARokRTYsnbUAhTW+LGfgeYIbtOLWeG6by/ZS44PJiB3pjS /ZAdwtaS+PJjH5qXQGwniXVfrjFBgklA4tvkQywTGJVmISmbhWTULCSjkNUsYGRZxSiaWpBc UJyUnmqiV5yYW1yal66XnJ+7iRGSEPh2MM5rsDjEKMDBqMTDu+n7zQAh1sSy4srcQ4wSHMxK IrzOH4FCvCmJlVWpRfnxRaU5qcWHGH2ArprILCWanA9MVnkl8YbGBsaGhpaGZqaWpgY4hJXE eZUqpgcICaQnlqRmp6YWpBbBjGPi4JRqYFx/WvKqRANTKNvr5bpek/Zrzvz+6N9KQcbybSv3 nfjme3WF2sukFTUrInsWNO37zHBl65aNuw3WsyzhnnBC2m2KzI1cxzcbm54Kz5H06M9WNu0q uDmdz0A5em2rqv/3lvlh9gbvsr5s69HdYXf7LOdbp6y3L/bGuridDtp7qeOXh5wA04lbpblK LMUZiYZazEXFiQBjQ3fcNQMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrNKsWRmVeSWpSXmKPExsVy+t/t6boOvbcCDJbPFre4vGsOmwOjx+dN cgGMURk2GamJKalFCql5yfkpmXnptkrewfHO8aZmBoa6hpYW5koKeYm5qbZKLj4Bum6ZOUBD lRTKEnNKgUIBicXFSvp2NkX5pSWpChn5xSW2StFGBsZ6RqYmekbGBnomBrFWhgYGRqZAVQkZ GcsfLGErOCZR0XftOFsD4wfxLkZODiEBNYmbnw8xgtgSAiYS39//Z4WwxSQu3FvP1sXIBVQz n1Hi64/fzCAJFgFViY+X77CA2GwCOhId//eDNQgLpEscuDydDcQWAarZcXYFO8QCRYlrSxeD xXkFBCVOznwC1MsBtEBFYuLNfBCTF6j8/Ks8iLUSErOmX4A6gVdiRvtTFghbTmLa1zXMELa0 xPlZGxhhzlz8/TFUnF/i2O0dTBDTeSWe3A+GGbN78xc2CFtAYuqZg4wQJZoSS96GQpjaEjf2 O8AM2XVqOTNM5/0tc5lAbGagN6Z0P2SHsLUkvvzYh+YlENtJYt2Xa0wTGGVnIUnNQtI+C0k7 spoFjCyrGEVTC5ILipPSU030ihNzi0vz0vWS83M3MYJT0DO+HYzzGiwOMQpwMCrx8G76fjNA iDWxrLgy9xCjBAezkgiv80egEG9KYmVValF+fFFpTmrxIUYfYIRNZJYSTc4Hpse8knhDYwNj Q0NLcwNTQyMLHMJK4rxKFdMDhATSE0tSs1NTC1KLYMYxcXBKNTBGNEzxeOKwLu260D/uU/P6 P9xYwJItuurrt87cuMR5G14/mP/hY7X6BZ698YvemCakn9m6btG9ALnGnevKZ5Rc+O4SsbD9 1dRo36v/Lk4Wn3hfv/vSt5Mt2XwXBBdN25LkPGWOwta1hxpcrH6sKL+2K+ZIdmn4BFPNDVk9 28Uu6WXp3rx34bHyaSWW4oxEQy3mouJEAMlbl0puAwAA 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 qBQ5cSJI016376 Hi, During SVN checkout (means heavy I/O), I hit this kernel BUG with current linus git (637704cb : Merge branch 'i2c-embedded/for-next'), in my VMWare Linux guest. [ 9141.015123] BUG: unable to handle kernel NULL pointer dereference at 00000280 [ 9141.017870] IP: [] wait_iff_congested+0x45/0xdd [ 9141.034799] *pde = 00000000 [ 9141.034803] Oops: 0000 [#1] SMP [ 9141.044282] Modules linked in: vmwgfx ttm drm [ 9141.044331] Pid: 42, comm: kswapd0 Not tainted 3.8.0-rc1+ #120 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform [ 9141.044334] EIP: 0060:[] EFLAGS: 00010202 CPU: 3 [ 9141.044342] EIP is at wait_iff_congested+0x45/0xdd [ 9141.044343] EAX: 00000001 EBX: 00000000 ECX: 00000000 EDX: 00000000 [ 9141.044345] ESI: 0000001e EDI: f633fec0 EBP: f633fecc ESP: f633fea8 [ 9141.044347] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 9141.044348] CR0: 8005003b CR2: 00000280 CR3: 33ab7000 CR4: 000007d0 [ 9141.045817] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 9141.045834] DR6: ffff0ff0 DR7: 00000400 [ 9141.045836] Process kswapd0 (pid: 42, ti=f633e000 task=f6331920 task.ti=f633e000) [ 9141.045838] Stack: [ 9141.045839] 002889e6 00000000 f6331920 c04462a2 f633feb8 f633feb8 c0beba54 c0bead00 [ 9141.045844] 00000003 f633ff68 c04b3ffb 00000002 00000000 000086d1 f6331920 f633ff58 [ 9141.045849] 00000000 f6331920 00037b92 00000000 00000045 00000000 00000038 00000001 [ 9141.045854] Call Trace: [ 9141.045934] [] ? remove_wait_queue+0x27/0x27 [ 9141.045939] [] kswapd+0x5ef/0x705 [ 9141.045942] [] ? remove_wait_queue+0x27/0x27 [ 9141.045945] [] kthread+0x6b/0x70 [ 9141.045947] [] ? shrink_lruvec+0x492/0x492 [ 9141.083149] [] ret_from_kernel_thread+0x1b/0x28 [ 9141.083166] [] ? kthread_freezable_should_stop+0x36/0x36 [ 9141.083169] Code: 89 45 dc 31 c0 f3 ab 64 a1 58 66 c7 c0 89 45 e4 8d 45 ec 89 45 ec 89 45 f0 8b 04 95 24 2b cf c0 c7 45 e8 a2 62 44 c0 85 c0 74 0a <8b> 83 80 02 00 00 a8 04 75 1b e8 e9 6f 44 00 a1 40 9a b8 c0 8b [ 9141.089753] EIP: [] wait_iff_congested+0x45/0xdd SS:ESP 0068:f633fea8 [ 9141.089764] CR2: 0000000000000280 [ 9141.090296] ---[ end trace 58a34900f079b57e ]--- {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I