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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 6E845C433DF for ; Fri, 5 Jun 2020 13:13:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 48C42207D3 for ; Fri, 5 Jun 2020 13:13:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591362787; bh=bcNETNa5RWlIw9VATDcNkScdCnqkwN4advSuuQw9u5o=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=X9tfVIahXGNvnHA5aaQVBw9cipI/1Xwd3mG/uPju6xeHt5iGC2Udx6TQ/hzOkyI44 esudCyum4gYsyFaf5JxBnFywO6VYJkjCXbry5MmupQqEB9vWz+GC4rmDwd848/wUwr /s+cp8PSu1sRtC2AnBfJjq7DI99hXJ4deSfXMv44= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726711AbgFENNG (ORCPT ); Fri, 5 Jun 2020 09:13:06 -0400 Received: from mail-ot1-f66.google.com ([209.85.210.66]:46421 "EHLO mail-ot1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726670AbgFENNF (ORCPT ); Fri, 5 Jun 2020 09:13:05 -0400 Received: by mail-ot1-f66.google.com with SMTP id g7so6452418oti.13; Fri, 05 Jun 2020 06:13:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KDRcyslstWfGOAj9gO84kpb1aHyQaMQo3XMiuFtbow4=; b=EUr8pD9iroG1y7NMnxJK5XHRr3PM/JWs7fV2zIZZmf/ZutYW3rD8SDXQIDSKzTAm5y 6vSdPU5i8oUDTjnzJObOkvbuXrfx1t51Grz4yKeD5vO55VDypVCBHCXhN7fjFXB8SFuc 0uDlQMrR/TFqqlZJla77SIJ0tWFGn5nar+2LLkR4gjDAe56fralqgVCEWWBbxA+1dR7j 7P0EOWT0JczF4pPnG4NfxBB8kSob+Qfv0XtmNqcLa46NQyuRE21wwaHEJbIMwDYY/zD8 9j9Zqw4cppjfeeSc8TknO2rc4D1sacdCdBhV5KcQycGuz2auRWyaOS5jONI+5VWqqjI7 LEfA== X-Gm-Message-State: AOAM532oELYWlZnisubP2L1MOhOMqjfuNbXKqNXOv9/LkjwSPTc5Nbef FEHmc8tvUFkPdfOzhkyv2UapqFdSIFWKJcJrzvU= X-Google-Smtp-Source: ABdhPJwok8/Qh33LKJgGBV0n0WDMv17a1WWR4fRDdvckgMDPljsKkenEcMXicBR+vQWHN4MVdoN0lW/pD/b/7te9fTk= X-Received: by 2002:a9d:39f5:: with SMTP id y108mr941693otb.262.1591362784013; Fri, 05 Jun 2020 06:13:04 -0700 (PDT) MIME-Version: 1.0 References: <4dc93ff8-f86e-f4c9-ebeb-6d3153a78d03@oracle.com> <7839183d-1c0b-da02-73a2-bf5e1e8b02b9@suse.cz> <94296941-1073-913c-2adb-bf2e41be9f0f@oracle.com> <202006041054.874AA564@keescook> <34455dce-6675-1fc2-8d61-45bf56f3f554@suse.cz> <6b2b149e-c2bc-f87a-ea2c-3046c5e39bf9@oracle.com> In-Reply-To: From: "Rafael J. Wysocki" Date: Fri, 5 Jun 2020 15:12:53 +0200 Message-ID: Subject: Re: slub freelist issue / BUG: unable to handle page fault for address: 000000003ffe0018 To: Vegard Nossum , Robert Moore , Erik Kaneda Cc: Vlastimil Babka , Kees Cook , "Rafael J. Wysocki" , Christoph Lameter , Andrew Morton , Marco Elver , Waiman Long , LKML , Linux MM , ACPI Devel Maling List , Len Brown , Steven Rostedt Content-Type: text/plain; charset="UTF-8" Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Fri, Jun 5, 2020 at 2:48 PM Vegard Nossum wrote: > > On 2020-06-05 11:36, Vegard Nossum wrote: > > > > On 2020-06-05 11:11, Vlastimil Babka wrote: > >> On 6/4/20 8:46 PM, Vlastimil Babka wrote: > >>> On 6/4/20 7:57 PM, Kees Cook wrote: > >>>> On Thu, Jun 04, 2020 at 07:20:18PM +0200, Vegard Nossum wrote: > >>>>> On 2020-06-04 19:18, Vlastimil Babka wrote: > >>>>>> On 6/4/20 7:14 PM, Vegard Nossum wrote: > >>>>>>> > >>>>>>> Hi all, > >>>>>>> > >>>>>>> I ran into a boot problem with latest linus/master > >>>>>>> (6929f71e46bdddbf1c4d67c2728648176c67c555) that manifests like this: > >>>>>> > >>>>>> Hi, what's the .config you use? > >>>>> > >>>>> Pretty much x86_64 defconfig minus a few options (PCI, USB, ...) > >>>> > >>>> Oh yes indeed. I immediately crash in the same way with this config. > >>>> I'll > >>>> start digging... > >>>> > >>>> (defconfig finishes boot) > >>> > >>> This is funny, booting with slub_debug=F results in: > >>> I'm not sure if it's ACPI or ftrace wrong here, but looks like the > >>> changed > >>> free pointer offset merely exposes a bug in something else. > >> > >> So, with Kees' patch reverted, booting with slub_debug=F (or even more > >> specific slub_debug=F,ftrace_event_field) also hits this bug below. I > >> wanted to bisect it, but v5.7 was also bad, and also v5.6. Didn't try > >> further in history. So it's not new at all, and likely very specific to > >> your config+QEMU? (and related to the ACPI error messages that precede > >> it?). > > > > I see it too, but not on v5.0. I can bisect it. > > commit 67a72420a326b45514deb3f212085fb2cd1595b5 > Author: Bob Moore > Date: Fri Aug 16 14:43:21 2019 -0700 > > ACPICA: Increase total number of possible Owner IDs > > ACPICA commit 1f1652dad88b9d767767bc1f7eb4f7d99e6b5324 > > From 255 to 4095 possible IDs. > > Link: https://github.com/acpica/acpica/commit/1f1652da > Reported-by: Hedi Berriche > Signed-off-by: Bob Moore > Signed-off-by: Erik Schmauss > Signed-off-by: Rafael J. Wysocki Bob, Erik, did we miss something in that patch? > >>> This would mean acpi_os_release_object() calling > >>> kmem_cache_free(ftrace_event_field, x) > >>> where x is actually from kmalloc-64? Both parts of that sounds wrong. > >>> > >>> Thread starts here: > >>> https://lore.kernel.org/linux-mm/4dc93ff8-f86e-f4c9-ebeb-6d3153a78d03@oracle.com/ > >>> > >>> > >>> [ 0.144386] ACPI: Added _OSI(Module Device) > >>> [ 0.144496] ACPI: Added _OSI(Processor Device) > >>> [ 0.144956] ACPI: Added _OSI(3.0 _SCP Extensions) > >>> [ 0.145432] ACPI: Added _OSI(Processor Aggregator Device) > >>> [ 0.145501] ACPI: Added _OSI(Linux-Dell-Video) > >>> [ 0.145951] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) > >>> [ 0.146522] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) > >>> [ 0.147070] ACPI Error: AE_BAD_PARAMETER, During Region > >>> initialization (20200430/tbxfload-52) > >>> [ 0.147494] ACPI: Unable to load the System Description Tables > >>> [ 0.148104] ACPI Error: Could not remove SCI handler > >>> (20200430/evmisc-251) > >>> [ 0.148507] ------------[ cut here ]------------ > >>> [ 0.148985] cache_from_obj: Wrong slab cache. ftrace_event_field > >>> but object is from kmalloc-64 > >>> [ 0.149502] WARNING: CPU: 0 PID: 1 at mm/slab.h:523 > >>> kmem_cache_free+0x248/0x260 > >>> [ 0.150254] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0+ #43 > >>> [ 0.150490] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), > >>> BIOS rel-1.13.0-0-gf21b5a4-rebuilt.opensuse.org 04/01/2014 > >>> [ 0.150490] RIP: 0010:kmem_cache_free+0x248/0x260 > >>> [ 0.150490] Code: ff 0f 0b e9 9d fe ff ff 49 8b 4d 58 48 8b 55 58 > >>> 48 c7 c6 10 47 c1 a4 48 c7 c7 f0 c1 d0 a4 c6 05 9f 05 b1 00 01 e8 bc > >>> cc eb ff <0f> 0b 48 8b 15 5f 36 9b 00 4c 89 ed e9 d6 fd ff ff 0f 1f > >>> 80 00 00 > >>> [ 0.150490] RSP: 0018:ffffb4dac0013dc0 EFLAGS: 00010282 > >>> [ 0.150490] RAX: 0000000000000000 RBX: ffffa38a07409e00 RCX: > >>> 0000000000000000 > >>> [ 0.150490] RDX: 0000000000000001 RSI: 0000000000000092 RDI: > >>> ffffffffa51dd32c > >>> [ 0.150490] RBP: ffffa38a07403900 R08: ffffb4dac0013c7d R09: > >>> 00000000000000eb > >>> [ 0.150490] R10: ffffb4dac0013c78 R11: ffffb4dac0013c7d R12: > >>> ffffa38a87409e00 > >>> [ 0.150490] R13: ffffa38a07401d00 R14: 0000000000000000 R15: > >>> 0000000000000000 > >>> [ 0.150490] FS: 0000000000000000(0000) GS:ffffa38a07a00000(0000) > >>> knlGS:0000000000000000 > >>> [ 0.150490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > >>> [ 0.150490] CR2: 0000000000000000 CR3: 000000000560a000 CR4: > >>> 00000000003406f0 > >>> [ 0.150490] Call Trace: > >>> [ 0.150490] acpi_os_release_object+0x5/0x10 > >>> [ 0.150490] acpi_ns_delete_children+0x46/0x59 > >>> [ 0.150490] acpi_ns_delete_namespace_subtree+0x5c/0x79 > >>> [ 0.150490] ? acpi_sleep_proc_init+0x1f/0x1f > >>> [ 0.150490] acpi_ns_terminate+0xc/0x31 > >>> [ 0.150490] acpi_ut_subsystem_shutdown+0x45/0xa3 > >>> [ 0.150490] ? acpi_sleep_proc_init+0x1f/0x1f > >>> [ 0.150490] acpi_terminate+0x5/0xf > >>> [ 0.150490] acpi_init+0x27b/0x308 > >>> [ 0.150490] ? video_setup+0x79/0x79 > >>> [ 0.150490] do_one_initcall+0x7b/0x160 > >>> [ 0.150490] kernel_init_freeable+0x190/0x1f2 > >>> [ 0.150490] ? rest_init+0x9a/0x9a > >>> [ 0.150490] kernel_init+0x5/0xf6 > >>> [ 0.150490] ret_from_fork+0x22/0x30 > >>> [ 0.150490] ---[ end trace 967e9fbc065d7911 ]--- > >>> > >>> > >>> > >> > > > 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=-9.0 required=3.0 tests=MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 E6B5FC433E0 for ; Fri, 5 Jun 2020 13:13:06 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B208B20659 for ; Fri, 5 Jun 2020 13:13:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B208B20659 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 3823380007; Fri, 5 Jun 2020 09:13:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 331028E0006; Fri, 5 Jun 2020 09:13:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 220E680007; Fri, 5 Jun 2020 09:13:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0129.hostedemail.com [216.40.44.129]) by kanga.kvack.org (Postfix) with ESMTP id 06A6F8E0006 for ; Fri, 5 Jun 2020 09:13:06 -0400 (EDT) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id B61581802DE19 for ; Fri, 5 Jun 2020 13:13:05 +0000 (UTC) X-FDA: 76895198730.10.flag39_1c0c92326da0 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin10.hostedemail.com (Postfix) with ESMTP id 371471683E2 for ; Fri, 5 Jun 2020 13:13:05 +0000 (UTC) X-HE-Tag: flag39_1c0c92326da0 X-Filterd-Recvd-Size: 8589 Received: from mail-ot1-f68.google.com (mail-ot1-f68.google.com [209.85.210.68]) by imf37.hostedemail.com (Postfix) with ESMTP for ; Fri, 5 Jun 2020 13:13:04 +0000 (UTC) Received: by mail-ot1-f68.google.com with SMTP id u23so7533030otq.10 for ; Fri, 05 Jun 2020 06:13:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=KDRcyslstWfGOAj9gO84kpb1aHyQaMQo3XMiuFtbow4=; b=Gt9s2MsaEJNy9o1bs++K7Lk1WfGprJ/jBOBlU+5tvI1YtCGylPQVT8S4FQQ8pwdIpp jEj4NBfelAN7GChRj/GKHGT/loX9ToAjPBd2ymJWbnbtViXzcIsx7FPDTrF676hqFT34 JZZ2N3P+8J8YhusIBpZ+SBWHpR7ry/7w7w8kYV0JA83QnvUXlRU2c/jOD+XHv+7X3a0a wy0cpbfVWz0/Sr2yoKA1mEWgqib6ygTFDJ825hgHxT9qPQMFD0zpGObHK7kKsZAQz4iK Qu6el8cfM5G6iL2I5fUWX+hzWlJdccT+UdaNprDNj94f2cgk1ydbCCRGVXt6MYaaeDJf ftgg== X-Gm-Message-State: AOAM5336liNDQFhRmnJKxhhgTs2YmuMpjDvHqeLowEKYyJhVu6xsIoOU gO68vmP4iN56Ff3l/xRj2xdVXHjA65+hGcXHrO8= X-Google-Smtp-Source: ABdhPJwok8/Qh33LKJgGBV0n0WDMv17a1WWR4fRDdvckgMDPljsKkenEcMXicBR+vQWHN4MVdoN0lW/pD/b/7te9fTk= X-Received: by 2002:a9d:39f5:: with SMTP id y108mr941693otb.262.1591362784013; Fri, 05 Jun 2020 06:13:04 -0700 (PDT) MIME-Version: 1.0 References: <4dc93ff8-f86e-f4c9-ebeb-6d3153a78d03@oracle.com> <7839183d-1c0b-da02-73a2-bf5e1e8b02b9@suse.cz> <94296941-1073-913c-2adb-bf2e41be9f0f@oracle.com> <202006041054.874AA564@keescook> <34455dce-6675-1fc2-8d61-45bf56f3f554@suse.cz> <6b2b149e-c2bc-f87a-ea2c-3046c5e39bf9@oracle.com> In-Reply-To: From: "Rafael J. Wysocki" Date: Fri, 5 Jun 2020 15:12:53 +0200 Message-ID: Subject: Re: slub freelist issue / BUG: unable to handle page fault for address: 000000003ffe0018 To: Vegard Nossum , Robert Moore , Erik Kaneda Cc: Vlastimil Babka , Kees Cook , "Rafael J. Wysocki" , Christoph Lameter , Andrew Morton , Marco Elver , Waiman Long , LKML , Linux MM , ACPI Devel Maling List , Len Brown , Steven Rostedt Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 371471683E2 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 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 Fri, Jun 5, 2020 at 2:48 PM Vegard Nossum wrote: > > On 2020-06-05 11:36, Vegard Nossum wrote: > > > > On 2020-06-05 11:11, Vlastimil Babka wrote: > >> On 6/4/20 8:46 PM, Vlastimil Babka wrote: > >>> On 6/4/20 7:57 PM, Kees Cook wrote: > >>>> On Thu, Jun 04, 2020 at 07:20:18PM +0200, Vegard Nossum wrote: > >>>>> On 2020-06-04 19:18, Vlastimil Babka wrote: > >>>>>> On 6/4/20 7:14 PM, Vegard Nossum wrote: > >>>>>>> > >>>>>>> Hi all, > >>>>>>> > >>>>>>> I ran into a boot problem with latest linus/master > >>>>>>> (6929f71e46bdddbf1c4d67c2728648176c67c555) that manifests like this: > >>>>>> > >>>>>> Hi, what's the .config you use? > >>>>> > >>>>> Pretty much x86_64 defconfig minus a few options (PCI, USB, ...) > >>>> > >>>> Oh yes indeed. I immediately crash in the same way with this config. > >>>> I'll > >>>> start digging... > >>>> > >>>> (defconfig finishes boot) > >>> > >>> This is funny, booting with slub_debug=F results in: > >>> I'm not sure if it's ACPI or ftrace wrong here, but looks like the > >>> changed > >>> free pointer offset merely exposes a bug in something else. > >> > >> So, with Kees' patch reverted, booting with slub_debug=F (or even more > >> specific slub_debug=F,ftrace_event_field) also hits this bug below. I > >> wanted to bisect it, but v5.7 was also bad, and also v5.6. Didn't try > >> further in history. So it's not new at all, and likely very specific to > >> your config+QEMU? (and related to the ACPI error messages that precede > >> it?). > > > > I see it too, but not on v5.0. I can bisect it. > > commit 67a72420a326b45514deb3f212085fb2cd1595b5 > Author: Bob Moore > Date: Fri Aug 16 14:43:21 2019 -0700 > > ACPICA: Increase total number of possible Owner IDs > > ACPICA commit 1f1652dad88b9d767767bc1f7eb4f7d99e6b5324 > > From 255 to 4095 possible IDs. > > Link: https://github.com/acpica/acpica/commit/1f1652da > Reported-by: Hedi Berriche > Signed-off-by: Bob Moore > Signed-off-by: Erik Schmauss > Signed-off-by: Rafael J. Wysocki Bob, Erik, did we miss something in that patch? > >>> This would mean acpi_os_release_object() calling > >>> kmem_cache_free(ftrace_event_field, x) > >>> where x is actually from kmalloc-64? Both parts of that sounds wrong. > >>> > >>> Thread starts here: > >>> https://lore.kernel.org/linux-mm/4dc93ff8-f86e-f4c9-ebeb-6d3153a78d03@oracle.com/ > >>> > >>> > >>> [ 0.144386] ACPI: Added _OSI(Module Device) > >>> [ 0.144496] ACPI: Added _OSI(Processor Device) > >>> [ 0.144956] ACPI: Added _OSI(3.0 _SCP Extensions) > >>> [ 0.145432] ACPI: Added _OSI(Processor Aggregator Device) > >>> [ 0.145501] ACPI: Added _OSI(Linux-Dell-Video) > >>> [ 0.145951] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) > >>> [ 0.146522] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) > >>> [ 0.147070] ACPI Error: AE_BAD_PARAMETER, During Region > >>> initialization (20200430/tbxfload-52) > >>> [ 0.147494] ACPI: Unable to load the System Description Tables > >>> [ 0.148104] ACPI Error: Could not remove SCI handler > >>> (20200430/evmisc-251) > >>> [ 0.148507] ------------[ cut here ]------------ > >>> [ 0.148985] cache_from_obj: Wrong slab cache. ftrace_event_field > >>> but object is from kmalloc-64 > >>> [ 0.149502] WARNING: CPU: 0 PID: 1 at mm/slab.h:523 > >>> kmem_cache_free+0x248/0x260 > >>> [ 0.150254] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0+ #43 > >>> [ 0.150490] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), > >>> BIOS rel-1.13.0-0-gf21b5a4-rebuilt.opensuse.org 04/01/2014 > >>> [ 0.150490] RIP: 0010:kmem_cache_free+0x248/0x260 > >>> [ 0.150490] Code: ff 0f 0b e9 9d fe ff ff 49 8b 4d 58 48 8b 55 58 > >>> 48 c7 c6 10 47 c1 a4 48 c7 c7 f0 c1 d0 a4 c6 05 9f 05 b1 00 01 e8 bc > >>> cc eb ff <0f> 0b 48 8b 15 5f 36 9b 00 4c 89 ed e9 d6 fd ff ff 0f 1f > >>> 80 00 00 > >>> [ 0.150490] RSP: 0018:ffffb4dac0013dc0 EFLAGS: 00010282 > >>> [ 0.150490] RAX: 0000000000000000 RBX: ffffa38a07409e00 RCX: > >>> 0000000000000000 > >>> [ 0.150490] RDX: 0000000000000001 RSI: 0000000000000092 RDI: > >>> ffffffffa51dd32c > >>> [ 0.150490] RBP: ffffa38a07403900 R08: ffffb4dac0013c7d R09: > >>> 00000000000000eb > >>> [ 0.150490] R10: ffffb4dac0013c78 R11: ffffb4dac0013c7d R12: > >>> ffffa38a87409e00 > >>> [ 0.150490] R13: ffffa38a07401d00 R14: 0000000000000000 R15: > >>> 0000000000000000 > >>> [ 0.150490] FS: 0000000000000000(0000) GS:ffffa38a07a00000(0000) > >>> knlGS:0000000000000000 > >>> [ 0.150490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > >>> [ 0.150490] CR2: 0000000000000000 CR3: 000000000560a000 CR4: > >>> 00000000003406f0 > >>> [ 0.150490] Call Trace: > >>> [ 0.150490] acpi_os_release_object+0x5/0x10 > >>> [ 0.150490] acpi_ns_delete_children+0x46/0x59 > >>> [ 0.150490] acpi_ns_delete_namespace_subtree+0x5c/0x79 > >>> [ 0.150490] ? acpi_sleep_proc_init+0x1f/0x1f > >>> [ 0.150490] acpi_ns_terminate+0xc/0x31 > >>> [ 0.150490] acpi_ut_subsystem_shutdown+0x45/0xa3 > >>> [ 0.150490] ? acpi_sleep_proc_init+0x1f/0x1f > >>> [ 0.150490] acpi_terminate+0x5/0xf > >>> [ 0.150490] acpi_init+0x27b/0x308 > >>> [ 0.150490] ? video_setup+0x79/0x79 > >>> [ 0.150490] do_one_initcall+0x7b/0x160 > >>> [ 0.150490] kernel_init_freeable+0x190/0x1f2 > >>> [ 0.150490] ? rest_init+0x9a/0x9a > >>> [ 0.150490] kernel_init+0x5/0xf6 > >>> [ 0.150490] ret_from_fork+0x22/0x30 > >>> [ 0.150490] ---[ end trace 967e9fbc065d7911 ]--- > >>> > >>> > >>> > >> > > >