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=-4.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 5156AC2D0A3 for ; Wed, 4 Nov 2020 12:23:33 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1BDB9208C7 for ; Wed, 4 Nov 2020 12:23:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=netcourrier.com header.i=@netcourrier.com header.b="xMPUNjYI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1BDB9208C7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=netcourrier.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6889A6B0036; Wed, 4 Nov 2020 07:23:31 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 612896B005D; Wed, 4 Nov 2020 07:23:31 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4D6CA6B0068; Wed, 4 Nov 2020 07:23:31 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0100.hostedemail.com [216.40.44.100]) by kanga.kvack.org (Postfix) with ESMTP id 13BE26B0036 for ; Wed, 4 Nov 2020 07:23:31 -0500 (EST) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id AF5A0362C for ; Wed, 4 Nov 2020 12:23:30 +0000 (UTC) X-FDA: 77446651380.22.water23_3902964272c1 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin22.hostedemail.com (Postfix) with ESMTP id 8E81F18038E67 for ; Wed, 4 Nov 2020 12:23:30 +0000 (UTC) X-HE-Tag: water23_3902964272c1 X-Filterd-Recvd-Size: 10645 Received: from msg-1.mailo.com (msg-1.mailo.com [213.182.54.11]) by imf48.hostedemail.com (Postfix) with ESMTP for ; Wed, 4 Nov 2020 12:23:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=netcourrier.com; s=mailo; t=1604492596; bh=evccmB9YIgw17uCP9e3wVcYeuVwFFlywrH6Tr0/aSnk=; h=X-EA-Auth:Reply-To:Subject:To:Cc:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=xMPUNjYI3OtLHEOmgEuEQAkeZbSdSQosZlmTbLtEgasokpCAjEVLlBugq6wq4s9Kt e4gwn8Ak6bxR06YicelKe8+JxPVAPAlh70EMa8bLFJVpQueDm/wGdTVviOS6lHqSSS U1aHX2TMqB/vAL3N1FCUlAaXR3WJ/IeYXFoTs1Qs= Received: by b-2.in.mailobj.net [192.168.90.12] with ESMTP via ip-206.mailobj.net [213.182.55.206] Wed, 4 Nov 2020 13:23:16 +0100 (CET) X-EA-Auth: C5WcKyRZ8ngu/FwPi4ILMfbUhXwLHMBVAgF/gplukFwP5TAmUN/R1mcmw9UDRgZgKspJfQx9nMXC14GBm59vdd7TuBnYBFeBEMUZFCvYlhg= Reply-To: newsmails@netcourrier.com Subject: Re: [Bug 210031] New: unable to handle page fault for address - EIP: khugepaged To: Vlastimil Babka , Andrew Morton Cc: bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org, Song Liu , "Kirill A. Shutemov" , Johannes Weiner , Oleg Nesterov References: <20201103161753.27a58af99ba35b94660e8fa3@linux-foundation.org> <86e33bed-eb81-3966-b195-431742f86746@suse.cz> From: Newsmails Message-ID: <599fa8aa-9811-bee7-3aa8-ca522b362b77@netcourrier.com> Date: Wed, 4 Nov 2020 13:23:15 +0100 User-Agent: Mozilla/5.0 (X11; Linux i686; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <86e33bed-eb81-3966-b195-431742f86746@suse.cz> 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 11/4/20 1:14 PM, Vlastimil Babka wrote: > On 11/4/20 1:17 AM, Andrew Morton wrote: >> (switched to email.=C2=A0 Please respond via emailed reply-to-all, not= via=20 >> the >> bugzilla web interface). >> >> >> On Tue, 03 Nov 2020 20:00:58 +0000=20 >> bugzilla-daemon@bugzilla.kernel.org wrote: >> >>> https://bugzilla.kernel.org/show_bug.cgi?id=3D210031 >>> >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Bu= g ID: 210031 >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Summary:= unable to handle page fault for address - EIP: >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 khugepaged >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Product:= Memory Management >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Version:= 2.5 >>> =C2=A0=C2=A0=C2=A0 Kernel Version: 5.9.1 >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Hardware: All >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0 OS: Linux >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 Tree: Mainline >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 St= atus: NEW >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Severity: norm= al >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Priority: P1 >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Component: Other >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Assignee: akpm= @linux-foundation.org >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Reporter: news= mails@netcourrier.com >>> =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Regression: No >> >> Thanks.=C2=A0 That's a strange looking trace.=C2=A0 I'll optimisticall= y cc some >> people who have been working in that area lately. >> >> What caused this kernel to be tainted? >> >> >>> laptop Skylake i915 Distribution : slackware 14.2 32 bits >>> >>> Oct 23 17:38:22 linuxp kernel: [141330.499234] BUG: unable to handle=20 >>> page fault >>> for address: 021d202d >>> Oct 23 17:38:22 linuxp kernel: [141330.499245] #PF: supervisor read=20 >>> access in >>> kernel mode >>> Oct 23 17:38:22 linuxp kernel: [141330.499250] #PF:=20 >>> error_code(0x0000) - >>> not-present page >>> Oct 23 17:38:22 linuxp kernel: [141330.499265] Oops: 0000 [#2] SMP PT= I > > #2 means this is not the first oops. Do you have the very first? > Yes sorry. It was a resume too as you will see with the time. For oct 23 17:38 it is a resume too i think : i think that I hibernated=20 and i forgot to look at something so i resumed. Oct 23 13:22:10 linuxp dhcpcd[18199]: dhcpcd not running Oct 23 15:55:49 linuxp dhcpcd[27045]: dhcpcd not running Oct 23 15:55:49 linuxp dhcpcd[27053]: dhcpcd not running Oct 23 15:55:50 linuxp dhcpcd[27061]: dhcpcd not running Oct 23 15:55:50 linuxp dhcpcd[27067]: dhcpcd not running Oct 23 17:31:13 linuxp kernel: [140897.356150] iwlwifi 0000:03:00.0:=20 RF_KILL bit toggled to enable radio. Oct 23 17:31:16 linuxp kernel: [140900.724013] Bluetooth: hci0:=20 unexpected event for opcode 0xfc2f Oct 23 17:31:39 linuxp kernel: [140928.245135] BUG: unable to handle=20 page fault for address: 021d2001 Oct 23 17:31:39 linuxp kernel: [140928.245147] #PF: supervisor read=20 access in kernel mode Oct 23 17:31:39 linuxp kernel: [140928.245152] #PF: error_code(0x0000) -=20 not-present page Oct 23 17:31:39 linuxp kernel: [140928.245169] Oops: 0000 [#1] SMP PTI Oct 23 17:31:39 linuxp kernel: [140928.245179] CPU: 1 PID: 2302 Comm:=20 Breakpad Server Tainted: G=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0 I=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 5.9.1 #1 Oct 23 17:31:39 linuxp kernel: [140928.245184] Hardware name:=20 Notebook=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 W65_W67RZ/W65_W67RZ, BIOS 1.05.06=20 02/22/2016 Oct 23 17:31:39 linuxp kernel: [140928.245197] EIP: m_next+0x1c/0x44 Oct 23 17:31:39 linuxp kernel: [140928.245205] Code: 24 08 d4 e6 c1 e8=20 1a 77 e2 ff eb d6 cc cc 3e 8d 74 26 00 55 89 e5 57 56 53 8b 40 44 8b 58=20 0c 39 da 74 24 8b 42 08 85 c0 74 0e <8b> 30 31 ff 89 31 89 79 04 5b 5e=20 5f 5d c3 be ff ff ff ff 31 ff 85 Oct 23 17:31:39 linuxp kernel: [140928.245212] EAX: 021d2001 EBX:=20 00000000 ECX: eeb9e56c EDX: eca0f000 Oct 23 17:31:39 linuxp kernel: [140928.245216] ESI: 00000000 EDI:=20 c128cad0 EBP: e59bff0c ESP: e59bff00 Oct 23 17:31:39 linuxp kernel: [140928.245221] DS: 007b ES: 007b FS:=20 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 Oct 23 17:31:39 linuxp kernel: [140928.245224] CR0: 80050033 CR2:=20 021d2001 CR3: 2606c000 CR4: 003506f0 Oct 23 17:31:39 linuxp kernel: [140928.245228] DR0: 00000000 DR1:=20 00000000 DR2: 00000000 DR3: 00000000 Oct 23 17:31:39 linuxp kernel: [140928.245231] DR6: fffe0ff0 DR7: 0000040= 0 Oct 23 17:31:39 linuxp kernel: [140928.245233] Call Trace: Oct 23 17:31:39 linuxp kernel: [140928.245242]=C2=A0 ?=20 quota_send_warning+0x220/0x220 Oct 23 17:31:39 linuxp kernel: [140928.245248]=C2=A0 seq_read+0x2bc/0x3e1 Oct 23 17:31:39 linuxp kernel: [140928.245254]=C2=A0 ?=20 quota_send_warning+0x220/0x220 Oct 23 17:31:39 linuxp kernel: [140928.245260]=C2=A0 ? seq_open_private+0= x17/0x17 Oct 23 17:31:39 linuxp kernel: [140928.245266]=C2=A0 vfs_read+0x85/0x17f Oct 23 17:31:39 linuxp kernel: [140928.245272]=C2=A0 ? mutex_lock+0x10/0x= 33 Oct 23 17:31:39 linuxp kernel: [140928.245277]=C2=A0 ksys_read+0x51/0xb6 Oct 23 17:31:39 linuxp kernel: [140928.245283] __ia32_sys_read+0x15/0x17 Oct 23 17:31:39 linuxp kernel: [140928.245289] do_int80_syscall_32+0x2c/0= x39 Oct 23 17:31:39 linuxp kernel: [140928.245295] entry_INT80_32+0xf7/0xf7 Oct 23 17:31:39 linuxp kernel: [140928.245299] EIP: 0xafc787c8 Oct 23 17:31:39 linuxp kernel: [140928.245304] Code: 00 00 c6 47 04 01=20 8b 47 08 85 c0 75 b6 80 7f 04 00 75 5c 8b 37 ba 00 04 00 00 8d 4c 07 0c=20 29 c2 b8 03 00 00 00 53 89 f3 cd 80 <5b> 89 c6 3d 01 f0 ff ff 73 32 85=20 f6 78 37 74 c8 01 77 08 8b 47 08 Oct 23 17:31:39 linuxp kernel: [140928.245308] EAX: ffffffda EBX:=20 00000040 ECX: a3c194fc EDX: 000003d8 Oct 23 17:31:39 linuxp kernel: [140928.245311] ESI: 00000040 EDI:=20 a3c194c8 EBP: 995fece8 ESP: 995feccc Oct 23 17:31:39 linuxp kernel: [140928.245316] DS: 007b ES: 007b FS:=20 0000 GS: 0033 SS: 007b EFLAGS: 00000216 Oct 23 17:31:39 linuxp kernel: [140928.245320] Modules linked in:=20 appletalk psnap llc ipv6 fuse uvcvideo videobuf2_vmalloc=20 videobuf2_memops btusb videobuf2_v4l2 hid_generic btrtl btbcm=20 videobuf2_common btintel videodev bluetooth mc usbhid hid ecdh_generic=20 ecc rtsx_pci_sdmmc joydev mmc_core snd_hda_codec_hdmi=20 snd_hda_codec_realtek snd_hda_codec_generic i2c_dev ledtrig_audio=20 coretemp i915 hwmon iwlmvm r8169 i2c_algo_bit x86_pkg_temp_thermal=20 mac80211 drm_kms_helper intel_powerclamp rtsx_pci realtek drm kvm_intel=20 mdio_devres mfd_core libphy kvm intel_gtt irqbypass crc32_pclmul iwlwifi=20 snd_hda_intel agpgart psmouse evdev crc32c_intel serio_raw fb_sys_fops=20 cfg80211 snd_intel_dspcfg snd_hda_codec rfkill snd_hda_core syscopyarea=20 wmi thermal snd_hwdep battery snd_pcm sysfillrect sysimgblt snd_timer=20 xhci_pci i2c_i801 button xhci_hcd snd i2c_smbus intel_pch_thermal mei_me=20 soundcore video mei i2c_core acpi_pad ac loop Oct 23 17:31:39 linuxp kernel: [140928.245396] CR2: 00000000021d2001 Oct 23 17:31:39 linuxp kernel: [140928.245402] ---[ end trace=20 c79bfd2669dd9a26 ]--- Oct 23 17:31:39 linuxp kernel: [140928.245408] EIP: m_next+0x1c/0x44 Oct 23 17:31:39 linuxp kernel: [140928.245412] Code: 24 08 d4 e6 c1 e8=20 1a 77 e2 ff eb d6 cc cc 3e 8d 74 26 00 55 89 e5 57 56 53 8b 40 44 8b 58=20 0c 39 da 74 24 8b 42 08 85 c0 74 0e <8b> 30 31 ff 89 31 89 79 04 5b 5e=20 5f 5d c3 be ff ff ff ff 31 ff 85 Oct 23 17:31:39 linuxp kernel: [140928.245417] EAX: 021d2001 EBX:=20 00000000 ECX: eeb9e56c EDX: eca0f000 Oct 23 17:31:39 linuxp kernel: [140928.245420] ESI: 00000000 EDI:=20 c128cad0 EBP: e59bff0c ESP: e59bff00 Oct 23 17:31:39 linuxp kernel: [140928.245424] DS: 007b ES: 007b FS:=20 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 Oct 23 17:31:39 linuxp kernel: [140928.245427] CR0: 80050033 CR2:=20 021d2001 CR3: 2606c000 CR4: 003506f0 Oct 23 17:31:39 linuxp kernel: [140928.245431] DR0: 00000000 DR1:=20 00000000 DR2: 00000000 DR3: 00000000 Oct 23 17:31:39 linuxp kernel: [140928.245434] DR6: fffe0ff0 DR7: 0000040= 0 Oct 23 17:32:27 linuxp dhcpcd[27294]: dhcpcd not running Oct 23 17:32:30 linuxp dhcpcd[27305]: dhcpcd not running Oct 23 17:32:33 linuxp dhcpcd[27314]: dhcpcd not running Oct 23 17:32:35 linuxp dhcpcd[27325]: dhcpcd not running Oct 23 17:32:36 linuxp dhcpcd[27331]: dhcpcd not running Oct 23 17:38:22 linuxp kernel: [141330.499234] BUG: unable to handle=20 page fault for address: 021d202d Oct 23 17:38:22 linuxp kernel: [141330.499245] #PF: supervisor read=20 access in kernel mode Oct 23 17:38:22 linuxp kernel: [141330.499250] #PF: error_code(0x0000) -=20 not-present page Oct 23 17:38:22 linuxp kernel: [141330.499265] Oops: 0000 [#2] SMP PTI Oct 23 17:38:22 linuxp kernel: [141330.499274] CPU: 0 PID: 37 Comm:=20 khugepaged Tainted: G=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 D=C2=A0=C2=A0 I=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 5.9.1 #1 Oct 23 17:38:22 linuxp kernel: [141330.499278] Hardware name:=20 Notebook=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 W65_W67RZ/W65_W67RZ, BIOS 1.05.06=20 02/22/2016 Oct 23 17:38:22 linuxp kernel: [141330.499289] EIP: khugepaged+0x599/0x22= 26