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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 0A1D1C2BD09 for ; Thu, 5 Dec 2019 12:23:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D1E2420707 for ; Thu, 5 Dec 2019 12:23:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729401AbfLEMXM (ORCPT ); Thu, 5 Dec 2019 07:23:12 -0500 Received: from outbound.smtp.vt.edu ([198.82.183.121]:51894 "EHLO omr2.cc.vt.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729048AbfLEMXM (ORCPT ); Thu, 5 Dec 2019 07:23:12 -0500 Received: from mr1.cc.vt.edu (mr1.cc.ipv6.vt.edu [IPv6:2607:b400:92:8300:0:31:1732:8aa4]) by omr2.cc.vt.edu (8.14.4/8.14.4) with ESMTP id xB5CNA2o005391 for ; Thu, 5 Dec 2019 07:23:10 -0500 Received: from mail-qt1-f197.google.com (mail-qt1-f197.google.com [209.85.160.197]) by mr1.cc.vt.edu (8.14.7/8.14.7) with ESMTP id xB5CN5Ak030788 for ; Thu, 5 Dec 2019 07:23:10 -0500 Received: by mail-qt1-f197.google.com with SMTP id h14so2329462qtq.11 for ; Thu, 05 Dec 2019 04:23:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:mime-version :content-transfer-encoding:date:message-id; bh=SJTz6nfFGS1JkN4azYE/xxsBuETDiZ5U9y6r6X7LqJw=; b=Lyq0AhdkCquqL3o7ZkZnGUiSoVpyJHiFefBRbOlGGN7XMOwoOh4TANflfgDo93Mpc6 ADLlfbaw0TwFdkXlP8DjvNLnUXcjBTAm9c9pGF/NqQikalbfDldf0ace53ZiAVGAHmOj Xvsc3aT5UshJu1HjMrEvSMLg3DKpwfLFWmYFW0qh1XYRE118gHpDOZSsHosvFhrrSX3W rJhdL/ufA21p8QgezUNS4c+2umhiFC4FT84JEqcPMRBJCFkAIOBn0O9SukJpMogKoMEr BagMciviBTWR7FrF82h9daqJWOgkMmsaCDu9BKFqSQCEFJSmXLPSaTFRUP7NpoXGQ3o3 1l0w== X-Gm-Message-State: APjAAAU26Zv/rtg8DDcIXJI/QDhN8i5WZ/ZnV7FNR9cnLctYznBQvCaQ EiSMSonap/ppgu3ix2mPrwQaZFs3Q4s9LeoE071QwXurmqTAgaLUyYb+R67bO8n65E1JX57igrH EKNI4qrTh0eXxC4I1YH6uPVR0UjHWVm2FOMs= X-Received: by 2002:a0c:f8d1:: with SMTP id h17mr7297723qvo.80.1575548584847; Thu, 05 Dec 2019 04:23:04 -0800 (PST) X-Google-Smtp-Source: APXvYqxgk8oAYvDbA46BYI57I9SaloPSNPZ2Un2SNHLNzSohQcIWWrSMJAqtuTPWaZTucUrG/RfxJw== X-Received: by 2002:a0c:f8d1:: with SMTP id h17mr7297705qvo.80.1575548584404; Thu, 05 Dec 2019 04:23:04 -0800 (PST) Received: from turing-police ([2601:5c0:c001:c9e1::359]) by smtp.gmail.com with ESMTPSA id a66sm4786531qkb.27.2019.12.05.04.23.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Dec 2019 04:23:03 -0800 (PST) From: "Valdis =?utf-8?Q?Kl=c4=93tnieks?=" X-Google-Original-From: "Valdis =?utf-8?Q?Kl=c4=93tnieks?=" X-Mailer: exmh version 2.9.0 11/07/2018 with nmh-1.7+dev To: Steven Price , Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: linux-next 20191204: crash in mm/pagewalk.c Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1575548582_4281P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Thu, 05 Dec 2019 07:23:02 -0500 Message-ID: <4587.1575548582@turing-police> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1575548582_4281P Content-Type: text/plain; charset=us-ascii linux-next 20191204 dies a horrid death on my laptop while booting: [ 12.344975] Write protecting the kernel read-only data: 26624k [ 12.348497] Freeing unused kernel image (text/rodata gap) memory: 2036K [ 12.349701] Freeing unused kernel image (rodata/data gap) memory: 1056K [ 12.349756] BUG: kernel NULL pointer dereference, address: 0000000000000018 [ 12.349810] #PF: supervisor read access in kernel mode [ 12.349904] #PF: error_code(0x0000) - not-present page [ 12.349920] PGD 0 P4D 0 [ 12.349996] Oops: 0000 [#1] SMP [ 12.350012] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G T 5.4.0-next-20191204-dirty #703 [ 12.350031] Hardware name: TOSHIBA Satellite C55-B/ZBWAA, BIOS 5.00 07/23/2015 [ 12.350055] RIP: 0010:__lock_acquire+0x465/0x810 [ 12.350132] Code: 00 85 c0 74 10 44 8b 25 79 17 ba 01 45 85 e4 0f 84 c4 30 00 00 45 31 e4 48 83 c4 30 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <49> 81 3e 60 32 0c 9d 41 ba 00 00 00 00 45 0f 45 d7 41 83 fc 01 0f [ 12.350163] RSP: 0018:ffffb2f940053b70 EFLAGS: 00010002 [ 12.350179] RAX: ffff8896c7d74040 RBX: 0000000000000000 RCX: 0000000000000000 [ 12.350195] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018 [ 12.350211] RBP: ffffb2f940053bc8 R08: 0000000000000001 R09: 0000000000000000 [ 12.350227] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 12.350305] R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000001 [ 12.350323] FS: 0000000000000000(0000) GS:ffff8897f7a00000(0000) knlGS:0000000000000000 [ 12.350340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.350355] CR2: 0000000000000018 CR3: 0000000028a24000 CR4: 00000000001006f0 [ 12.350370] Call Trace: [ 12.350385] ? __bfs+0x2c/0x300 [ 12.350404] lock_acquire+0x90/0x170 [ 12.350421] ? walk_pgd_range+0x556/0x7b0 [ 12.350441] _raw_spin_lock+0x31/0x70 [ 12.350463] ? walk_pgd_range+0x556/0x7b0 [ 12.350479] walk_pgd_range+0x556/0x7b0 [ 12.350500] __walk_page_range+0x1a5/0x1c0 [ 12.350517] ? __lock_acquired+0x1f8/0x310 [ 12.350534] walk_page_range_novma+0x72/0xc0 [ 12.350553] ptdump_walk_pgd+0x47/0x80 [ 12.350570] ptdump_walk_pgd_level_core+0xc3/0xf0 [ 12.350588] ? ptdump_walk_pgd_level_debugfs+0x30/0x30 [ 12.350683] ? 0xffffffff9b000000 [ 12.350699] ptdump_walk_pgd_level_checkwx+0x19/0x1b [ 12.350717] mark_rodata_ro+0xc2/0xc9 [ 12.350732] ? rest_init+0x2c1/0x2eb [ 12.350747] kernel_init+0x3d/0x105 [ 12.350761] ? rest_init+0x2eb/0x2eb [ 12.350783] ret_from_fork+0x3a/0x50 [ 12.350797] Modules linked in: [ 12.350810] CR2: 0000000000000018 [ 12.350822] ---[ end trace 5060898a61f6b985 ]--- [ 12.424261] probe of 1-1 returned 1 after 1829 usecs [ 12.453678] calling sdhci_drv_init+0x0/0x4a @ 1 [ 12.527751] RIP: 0010:__lock_acquire+0x465/0x810 [ 12.527771] Code: 00 85 c0 74 10 44 8b 25 79 17 ba 01 45 85 e4 0f 84 c4 30 00 00 45 31 e4 48 83 c4 30 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <49> 81 3e 60 32 0c 9d 41 ba 00 00 00 00 45 0f 45 d7 41 83 fc 01 0f [ 12.527792] RSP: 0018:ffffb2f940053b70 EFLAGS: 00010002 [ 12.527803] RAX: ffff8896c7d74040 RBX: 0000000000000000 RCX: 0000000000000000 [ 12.527814] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018 [ 12.527825] RBP: ffffb2f940053bc8 R08: 0000000000000001 R09: 0000000000000000 [ 12.527836] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 12.527846] R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000001 [ 12.527858] FS: 0000000000000000(0000) GS:ffff8897f7a00000(0000) knlGS:0000000000000000 [ 12.527879] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.527894] CR2: 0000000000000018 CR3: 000000023060a000 CR4: 00000000001006f0 [ 12.527911] Kernel panic - not syncing: Fatal exception --==_Exmh_1575548582_4281P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Comment: Exmh version 2.9.0 11/07/2018 iQIVAwUBXej2pQdmEQWDXROgAQK85A//UOIGjyeGX2elEmpKuckbmYzFlQWN1wFB d6GAvAj3sik9otM+HXT1k0ZUk5VnRsvtne+mRI+RB+6yIwO+pVRAP8gvQXGjEg+N Ca3GqXS/LoqoXDM7ChH8DpVlEoqzQx9pzPNI7yCxT+YWKpVAr1rPYMm7N4UnK7e0 cCFIAx/xqDGzcqLZtDxsU4Ul1VocMeLeWKhuhwQU7F+H5nZnuI80iM4u59IJULEB /qY8lYRSuq/V1+1D8KH/aybKIc31OoaYa8URvVeNsLKU1dUY7FYybm+cmbsicvtp jVTH7jKBGrDpkEOrEevV0Q34r1tyPvuKTaXlMJzNrqhNPnlZaziNloa0FGMGcfyc DBVNhVjNDXYrHt57yhQemV/R+3nBE5ELDZ7x0JdHcNNUwPAsGRtlSvhvYt25KIHQ FDilh5hPoZ9oeiifdcP9W1sbA2ePSjjV8nveVURecGQwoKS5Y2h9LU/NRUnH8l3Z puvIYq2GYLSKdCswXH3dZdIYdGo4DlZDGlv1ezRIrZFW5i57todsN9qUMvi74Zbv Mm6Gp5hZ+co7KXVXz5bHkrGQgBToTrLdTmMrBzqL7i67MtpOWO6WVtCDYNqtxp1j Y/clmfuhn53nISwrDuhhifjEA2tL7oNUbn51KMtGoQseH5R8zY4wknK5k8t0Yxr+ 0FxQzfK/bpU= =5CD0 -----END PGP SIGNATURE----- --==_Exmh_1575548582_4281P--