From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56B08C33C99 for ; Tue, 7 Jan 2020 06:30:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 204F42077B for ; Tue, 7 Jan 2020 06:30:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 204F42077B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A81538E0015; Tue, 7 Jan 2020 01:30:40 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id A31688E0001; Tue, 7 Jan 2020 01:30:40 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 947868E0015; Tue, 7 Jan 2020 01:30:40 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0169.hostedemail.com [216.40.44.169]) by kanga.kvack.org (Postfix) with ESMTP id 7A8658E0001 for ; Tue, 7 Jan 2020 01:30:40 -0500 (EST) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id D4AC052D3 for ; Tue, 7 Jan 2020 06:30:39 +0000 (UTC) X-FDA: 76349864598.25.angle70_5cf59f2e6b362 X-HE-Tag: angle70_5cf59f2e6b362 X-Filterd-Recvd-Size: 6590 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by imf26.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Jan 2020 06:30:38 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Jan 2020 22:30:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,404,1571727600"; d="scan'208";a="211029203" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.6]) ([10.239.13.6]) by orsmga007.jf.intel.com with ESMTP; 06 Jan 2020 22:30:35 -0800 Subject: Re: [LKP] Re: 87c4696d57 ("mm/debug: Add tests validating architecture page .."): [ 1.395296] kernel BUG at include/linux/mm.h:2007! To: Anshuman Khandual , kernel test robot Cc: Ingo Molnar , Andrew Morton , Linux Memory Management List , Christophe Leroy , LKP References: <20191226084925.GX2760@shao2-debian> From: Rong Chen Message-ID: Date: Tue, 7 Jan 2020 14:30:18 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 1/7/20 1:57 PM, Anshuman Khandual wrote: > On 12/26/2019 02:19 PM, kernel test robot wrote: >> 46cf053efe Linux 5.5-rc3 >> 87c4696d57 mm/debug: Add tests validating architecture page table hel= pers >> +------------------------------------------+----------+------------+ >> | | v5.5-rc3 | 87c4696d57 | >> +------------------------------------------+----------+------------+ >> | boot_successes | 32 | 0 | >> | boot_failures | 0 | 11 | >> | kernel_BUG_at_include/linux/mm.h | 0 | 11 | >> | invalid_opcode:#[##] | 0 | 11 | >> | EIP:pgtable_pmd_page_dtor | 0 | 11 | >> | Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | >> +------------------------------------------+----------+------------+ >> >> If you fix the issue, kindly add following tag >> Reported-by: kernel test robot >> >> [ 1.390624] smp: Brought up 1 node, 2 CPUs >> [ 1.390624] smpboot: Max logical packages: 2 >> [ 1.390624] smpboot: Total of 2 processors activated (8783.48 BogoM= IPS) >> [ 1.391537] debug_vm_pgtable: debug_vm_pgtable: Validating architec= ture page table helpers >> [ 1.392382] page:f29b85c0 refcount:0 mapcount:0 mapping:00000000 in= dex:0x0 >> [ 1.393415] raw: 02800000 f29b8624 f29b8584 00000000 00000000 edc22= 280 ffffffff 00000000 >> [ 1.394178] page dumped because: VM_BUG_ON_PAGE(page->pmd_huge_pte) >> [ 1.394820] ------------[ cut here ]------------ >> [ 1.395296] kernel BUG at include/linux/mm.h:2007! >> [ 1.395942] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC PTI >> [ 1.396463] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc3-000= 01-g87c4696d57b5e #1 >> [ 1.396722] EIP: pgtable_pmd_page_dtor+0x1a/0x23 >> [ 1.396722] Code: d4 8a 27 c2 e8 16 81 04 00 b2 01 5b 88 d0 5d c3 5= 5 89 e5 52 89 45 fc 8b 45 fc 83 78 08 00 74 0c ba e1 e2 e0 c1 e8 14 99 13= 00 <0f> 0b e8 92 eb 13 00 c9 c3 55 89 e5 52 89 45 fc 8b 45 fc 90 8d 74 >> [ 1.396722] EAX: c1e0e2e1 EBX: 2dc2e000 ECX: 00000000 EDX: c1e0e2e1 >> [ 1.396722] ESI: edc2b000 EDI: edc4e010 EBP: ee287f14 ESP: ee287f10 >> [ 1.396722] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00= 010246 >> [ 1.396722] CR0: 80050033 CR2: ffffffff CR3: 0226a000 CR4: 001406b0 >> [ 1.396722] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 >> [ 1.396722] DR6: fffe0ff0 DR7: 00000400 >> [ 1.396722] Call Trace: >> [ 1.396722] mop_up_one_pmd+0x48/0x62 >> [ 1.396722] pgd_free+0x35/0xe0 >> [ 1.396722] __mmdrop+0x42/0x96 >> [ 1.396722] debug_vm_pgtable+0x460/0x47c >> [ 1.396722] kernel_init_freeable+0x84/0x172 >> [ 1.396722] ? rest_init+0xe9/0xe9 >> [ 1.396722] kernel_init+0xd/0xe9 >> [ 1.396722] ret_from_fork+0x1e/0x28 >> [ 1.396722] Modules linked in: >> [ 1.396742] ---[ end trace 9c6f11143a94c590 ]--- >> [ 1.397197] EIP: pgtable_pmd_page_dtor+0x1a/0x23 > Hello, > > Wondering if some one could help me with steps to reproduce this crash = ? > Could not reproduce the problem with the patch applied on Linux 5.5-rc3 > when built with the config file provided here on a standard KVM guest. > > - Anshuman Hi Anshuman, You can compile the kernel with config-5.5.0-rc3-00001-g87c4696d57b5e,=20 and run the reproduce script. Both files are in the original report mail. #=20 ./reproduce-yocto-vm-yocto-f91855057302-20191226051639-i386-randconfig-a0= 01-20191225-5.5.0-rc3-00001-g87c4696d57b5e-1=20 ~/linux/arch/x86/boot/bzImage 2>&1 | tail -20 [=C2=A0=C2=A0=C2=A0 1.471128] Call Trace: [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 mop_up_one_pmd+0x48/0x62 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 pgd_free+0x33/0xcc [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 __mmdrop+0x42/0x96 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 debug_vm_pgtable+0x45d/0x465 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 kernel_init_freeable+0x83/0x16b [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 ? rest_init+0xe0/0xe0 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 kernel_init+0xd/0xe9 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 ret_from_fork+0x1e/0x28 [=C2=A0=C2=A0=C2=A0 1.471128] Modules linked in: [=C2=A0=C2=A0=C2=A0 1.471134] ---[ end trace b241750e0a95311e ]--- [=C2=A0=C2=A0=C2=A0 1.471570] EIP: pgtable_pmd_page_dtor+0x1a/0x23 [=C2=A0=C2=A0=C2=A0 1.472006] Code: ba 9b 0b df c1 e8 eb 71 04 00 5b 89 f= 0 5e 5d c3 55=20 89 e5 52 89 45 fc 8b 45 fc 83 78 08 00 74 0c ba b6 0b df c1 e8 d6 51 13=20 00 <0f> 0b e8 c6 a3 13 00 c9 c3 55 89 e5 52 89 45 fc 8b 45 fc 90 8d 74 [=C2=A0=C2=A0=C2=A0 1.473746] EAX: c1df0bb6 EBX: 2e42d000 ECX: 00000000 E= DX: c1df0bb6 [=C2=A0=C2=A0=C2=A0 1.474340] ESI: ee42b000 EDI: ee44e008 EBP: eea87f20 E= SP: eea87f1c [=C2=A0=C2=A0=C2=A0 1.474465] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 006= 8 EFLAGS: 00010246 [=C2=A0=C2=A0=C2=A0 1.475112] CR0: 80050033 CR2: ffffffff CR3: 02242000 C= R4: 001406b0 [=C2=A0=C2=A0=C2=A0 1.475712] DR0: 00000000 DR1: 00000000 DR2: 00000000 D= R3: 00000000 [=C2=A0=C2=A0=C2=A0 1.476299] DR6: fffe0ff0 DR7: 00000400 [=C2=A0=C2=A0=C2=A0 1.476661] Kernel panic - not syncing: Fatal exception Best Regards, Rong Chen From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============3607917158092995663==" MIME-Version: 1.0 From: Rong Chen To: lkp@lists.01.org Subject: Re: 87c4696d57 ("mm/debug: Add tests validating architecture page .."): [ 1.395296] kernel BUG at include/linux/mm.h:2007! Date: Tue, 07 Jan 2020 14:30:18 +0800 Message-ID: In-Reply-To: List-Id: --===============3607917158092995663== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 1/7/20 1:57 PM, Anshuman Khandual wrote: > On 12/26/2019 02:19 PM, kernel test robot wrote: >> 46cf053efe Linux 5.5-rc3 >> 87c4696d57 mm/debug: Add tests validating architecture page table helpe= rs >> +------------------------------------------+----------+------------+ >> | | v5.5-rc3 | 87c4696d57 | >> +------------------------------------------+----------+------------+ >> | boot_successes | 32 | 0 | >> | boot_failures | 0 | 11 | >> | kernel_BUG_at_include/linux/mm.h | 0 | 11 | >> | invalid_opcode:#[##] | 0 | 11 | >> | EIP:pgtable_pmd_page_dtor | 0 | 11 | >> | Kernel_panic-not_syncing:Fatal_exception | 0 | 11 | >> +------------------------------------------+----------+------------+ >> >> If you fix the issue, kindly add following tag >> Reported-by: kernel test robot >> >> [ 1.390624] smp: Brought up 1 node, 2 CPUs >> [ 1.390624] smpboot: Max logical packages: 2 >> [ 1.390624] smpboot: Total of 2 processors activated (8783.48 BogoMIP= S) >> [ 1.391537] debug_vm_pgtable: debug_vm_pgtable: Validating architectu= re page table helpers >> [ 1.392382] page:f29b85c0 refcount:0 mapcount:0 mapping:00000000 inde= x:0x0 >> [ 1.393415] raw: 02800000 f29b8624 f29b8584 00000000 00000000 edc2228= 0 ffffffff 00000000 >> [ 1.394178] page dumped because: VM_BUG_ON_PAGE(page->pmd_huge_pte) >> [ 1.394820] ------------[ cut here ]------------ >> [ 1.395296] kernel BUG at include/linux/mm.h:2007! >> [ 1.395942] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC PTI >> [ 1.396463] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc3-00001= -g87c4696d57b5e #1 >> [ 1.396722] EIP: pgtable_pmd_page_dtor+0x1a/0x23 >> [ 1.396722] Code: d4 8a 27 c2 e8 16 81 04 00 b2 01 5b 88 d0 5d c3 55 = 89 e5 52 89 45 fc 8b 45 fc 83 78 08 00 74 0c ba e1 e2 e0 c1 e8 14 99 13 00 = <0f> 0b e8 92 eb 13 00 c9 c3 55 89 e5 52 89 45 fc 8b 45 fc 90 8d 74 >> [ 1.396722] EAX: c1e0e2e1 EBX: 2dc2e000 ECX: 00000000 EDX: c1e0e2e1 >> [ 1.396722] ESI: edc2b000 EDI: edc4e010 EBP: ee287f14 ESP: ee287f10 >> [ 1.396722] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 0001= 0246 >> [ 1.396722] CR0: 80050033 CR2: ffffffff CR3: 0226a000 CR4: 001406b0 >> [ 1.396722] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 >> [ 1.396722] DR6: fffe0ff0 DR7: 00000400 >> [ 1.396722] Call Trace: >> [ 1.396722] mop_up_one_pmd+0x48/0x62 >> [ 1.396722] pgd_free+0x35/0xe0 >> [ 1.396722] __mmdrop+0x42/0x96 >> [ 1.396722] debug_vm_pgtable+0x460/0x47c >> [ 1.396722] kernel_init_freeable+0x84/0x172 >> [ 1.396722] ? rest_init+0xe9/0xe9 >> [ 1.396722] kernel_init+0xd/0xe9 >> [ 1.396722] ret_from_fork+0x1e/0x28 >> [ 1.396722] Modules linked in: >> [ 1.396742] ---[ end trace 9c6f11143a94c590 ]--- >> [ 1.397197] EIP: pgtable_pmd_page_dtor+0x1a/0x23 > Hello, > > Wondering if some one could help me with steps to reproduce this crash ? > Could not reproduce the problem with the patch applied on Linux 5.5-rc3 > when built with the config file provided here on a standard KVM guest. > > - Anshuman Hi Anshuman, You can compile the kernel with config-5.5.0-rc3-00001-g87c4696d57b5e, = and run the reproduce script. Both files are in the original report mail. # = ./reproduce-yocto-vm-yocto-f91855057302-20191226051639-i386-randconfig-a001= -20191225-5.5.0-rc3-00001-g87c4696d57b5e-1 = ~/linux/arch/x86/boot/bzImage 2>&1 | tail -20 [=C2=A0=C2=A0=C2=A0 1.471128] Call Trace: [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 mop_up_one_pmd+0x48/0x62 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 pgd_free+0x33/0xcc [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 __mmdrop+0x42/0x96 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 debug_vm_pgtable+0x45d/0x465 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 kernel_init_freeable+0x83/0x16b [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 ? rest_init+0xe0/0xe0 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 kernel_init+0xd/0xe9 [=C2=A0=C2=A0=C2=A0 1.471128]=C2=A0 ret_from_fork+0x1e/0x28 [=C2=A0=C2=A0=C2=A0 1.471128] Modules linked in: [=C2=A0=C2=A0=C2=A0 1.471134] ---[ end trace b241750e0a95311e ]--- [=C2=A0=C2=A0=C2=A0 1.471570] EIP: pgtable_pmd_page_dtor+0x1a/0x23 [=C2=A0=C2=A0=C2=A0 1.472006] Code: ba 9b 0b df c1 e8 eb 71 04 00 5b 89 f0 = 5e 5d c3 55 = 89 e5 52 89 45 fc 8b 45 fc 83 78 08 00 74 0c ba b6 0b df c1 e8 d6 51 13 = 00 <0f> 0b e8 c6 a3 13 00 c9 c3 55 89 e5 52 89 45 fc 8b 45 fc 90 8d 74 [=C2=A0=C2=A0=C2=A0 1.473746] EAX: c1df0bb6 EBX: 2e42d000 ECX: 00000000 EDX= : c1df0bb6 [=C2=A0=C2=A0=C2=A0 1.474340] ESI: ee42b000 EDI: ee44e008 EBP: eea87f20 ESP= : eea87f1c [=C2=A0=C2=A0=C2=A0 1.474465] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 = EFLAGS: 00010246 [=C2=A0=C2=A0=C2=A0 1.475112] CR0: 80050033 CR2: ffffffff CR3: 02242000 CR4= : 001406b0 [=C2=A0=C2=A0=C2=A0 1.475712] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3= : 00000000 [=C2=A0=C2=A0=C2=A0 1.476299] DR6: fffe0ff0 DR7: 00000400 [=C2=A0=C2=A0=C2=A0 1.476661] Kernel panic - not syncing: Fatal exception Best Regards, Rong Chen --===============3607917158092995663==--