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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HTML_MESSAGE,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 9105EC33C99 for ; Tue, 7 Jan 2020 08:23:28 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 417EE2077B for ; Tue, 7 Jan 2020 08:23:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 417EE2077B 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 C76668E0019; Tue, 7 Jan 2020 03:23:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id C28028E0001; Tue, 7 Jan 2020 03:23:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AC9638E0019; Tue, 7 Jan 2020 03:23:27 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0182.hostedemail.com [216.40.44.182]) by kanga.kvack.org (Postfix) with ESMTP id 8F4338E0001 for ; Tue, 7 Jan 2020 03:23:27 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 519F252B3 for ; Tue, 7 Jan 2020 08:23:27 +0000 (UTC) X-FDA: 76350148854.16.river11_3b03492002a4a X-HE-Tag: river11_3b03492002a4a X-Filterd-Recvd-Size: 15998 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by imf36.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Jan 2020 08:23:25 +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 fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Jan 2020 00:23:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,405,1571727600"; d="scan'208,217";a="211055728" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.6]) ([10.239.13.6]) by orsmga007.jf.intel.com with ESMTP; 07 Jan 2020 00:23:15 -0800 Subject: Re: [LKP] Re: [mm/debug] 87c4696d57: kernel_BUG_at_include/linux/mm.h To: Anshuman Khandual Cc: linux-mm@kvack.org, Andrew Morton , Vlastimil Babka , Greg Kroah-Hartman , Thomas Gleixner , Mike Rapoport , Jason Gunthorpe , Dan Williams , Peter Zijlstra , Michal Hocko , Mark Rutland , Mark Brown , Steven Price , Ard Biesheuvel , Masahiro Yamada , Kees Cook , Tetsuo Handa , Matthew Wilcox , Sri Krishna chowdary , Dave Hansen , Russell King - ARM Linux , Michael Ellerman , Paul Mackerras , Martin Schwidefsky , Heiko Carstens , "Dav id S. Miller" , Vineet Gupta , James Hogan , Paul Burton , Ralf Baechle , "Kirill A . Shutemov" , Gerald Schaefer , Christophe Leroy , Ingo Molnar , linux-snps-arc@lists.infradead.org, linux-mips@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, lkp@lists.01.org References: <20191227142255.GD2760@shao2-debian> <490e77d6-a3ef-dd70-4c29-b90234f8a13d@arm.com> From: Rong Chen Message-ID: Date: Tue, 7 Jan 2020 16:22:58 +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: <490e77d6-a3ef-dd70-4c29-b90234f8a13d@arm.com> Content-Type: multipart/alternative; boundary="------------F2192ED820780A63D2DD35AC" Content-Language: en-US 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: This is a multi-part message in MIME format. --------------F2192ED820780A63D2DD35AC Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 1/7/20 2:46 PM, Anshuman Khandual wrote: > On 12/27/2019 07:52 PM, kernel test robot wrote: >> [ 9.781974] kernel BUG at include/linux/mm.h:592! >> [ 9.782810] invalid opcode: 0000 [#1] PTI >> [ 9.783443] CPU: 0 PID: 1 Comm: swapper Not tainted 5.5.0-rc3-00001= -g87c4696d57b5e #1 >> [ 9.784528] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), = BIOS 1.10.2-1 04/01/2014 >> [ 9.785756] EIP: __free_pages+0x14/0x40 >> [ 9.786442] Code: 0c 9c 5e fa 89 d8 e8 5b f3 ff ff 56 9d 5b 5e 5d c= 3 8d 74 26 00 90 8b 48 1c 55 89 e5 85 c9 75 16 ba b4 b6 84 d6 e8 ac 49 fe= ff <0f> 0b 8d b4 26 00 00 00 00 8d 76 00 ff 48 1c 75 10 85 d2 75 07 e8 >> [ 9.789697] EAX: d68761f7 EBX: ea52f000 ECX: ea4f8520 EDX: d684b6b4 >> [ 9.790850] ESI: 00000000 EDI: ef45e000 EBP: ea501f08 ESP: ea501f08 >> [ 9.791879] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00= 010286 >> [ 9.792783] CR0: 80050033 CR2: ffffffff CR3: 16d00000 CR4: 000406b0 >> [ 9.792783] Call Trace: >> [ 9.792783] free_pages+0x3c/0x50 >> [ 9.792783] pgd_free+0x5a/0x170 >> [ 9.792783] __mmdrop+0x42/0xe0 >> [ 9.792783] debug_vm_pgtable+0x54f/0x567 >> [ 9.792783] kernel_init_freeable+0x90/0x1e3 >> [ 9.792783] ? rest_init+0xf0/0xf0 >> [ 9.792783] kernel_init+0x8/0xf0 >> [ 9.792783] ret_from_fork+0x19/0x24 >> [ 9.792783] Modules linked in: >> [ 9.792803] ---[ end trace 91b7335adcf0b656 ]--- >> >> >> To reproduce: >> >> # build kernel >> cd linux >> cp config-5.5.0-rc3-00001-g87c4696d57b5e .config >> make HOSTCC=3Dgcc-7 CC=3Dgcc-7 ARCH=3Di386 olddefconfig prepare modul= es_prepare bzImage >> >> git clone https://github.com/intel/lkp-tests.git >> cd lkp-tests >> bin/lkp qemu -k job-script # job-script is attached= in this email > Hello, > > As the failure might be happening during boot when the test executes, > do we really need to run these LKP based QEMU environment in order to > reproduce the problem ? Could not this be recreated on a standalone > system. > > - Anshuman Hi Anshuman, Thanks for your advice, we provided another reproduce method which is in=20 the end of dmesg.xz file attached in original report: but the initrd file need to be supplied. qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-0 256G qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-1 256G qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-2 256G qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-3 256G qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-4 256G qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-5 256G qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-6 256G kvm=3D( =E2=80=BA=C2=A0=C2=A0 qemu-system-x86_64 =E2=80=BA=C2=A0=C2=A0 -enable-kvm =E2=80=BA=C2=A0=C2=A0 -cpu SandyBridge =E2=80=BA=C2=A0=C2=A0 -kernel $kernel =E2=80=BA=C2=A0=C2=A0 -initrd initrd-vm-snb-89942dcb126f =E2=80=BA=C2=A0=C2=A0 -m 8192 =E2=80=BA=C2=A0=C2=A0 -smp 2 =E2=80=BA=C2=A0=C2=A0 -device e1000,netdev=3Dnet0 =E2=80=BA=C2=A0=C2=A0 -netdev user,id=3Dnet0,hostfwd=3Dtcp::32032-:22 =E2=80=BA=C2=A0=C2=A0 -boot order=3Dnc =E2=80=BA=C2=A0=C2=A0 -no-reboot =E2=80=BA=C2=A0=C2=A0 -watchdog i6300esb =E2=80=BA=C2=A0=C2=A0 -watchdog-action debug =E2=80=BA=C2=A0=C2=A0 -rtc base=3Dlocaltime =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-0,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-1,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-2,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-3,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-4,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-5,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-6,media=3Ddi= sk,if=3Dvirtio =E2=80=BA=C2=A0=C2=A0 -serial stdio =E2=80=BA=C2=A0=C2=A0 -display none =E2=80=BA=C2=A0=C2=A0 -monitor null ) append=3D( =E2=80=BA=C2=A0=C2=A0 ip=3D::::vm-snb-89942dcb126f::dhcp =E2=80=BA=C2=A0=C2=A0 root=3D/dev/ram0 =E2=80=BA=C2=A0=C2=A0 user=3Dlkp =E2=80=BA=C2=A0=C2=A0 job=3D/job-script =E2=80=BA ARCH=3Di386 =E2=80=BA=C2=A0=C2=A0 kconfig=3Di386-randconfig-h001-20191225 =E2=80=BA=C2=A0=C2=A0 branch=3Dlinux-devel/devel-hourly-2019122518 =E2=80=BA=C2=A0=C2=A0 commit=3D87c4696d57b5e380bc2720fdff0772b042462b7d =E2=80=BA=20 BOOT_IMAGE=3D/pkg/linux/i386-randconfig-h001-20191225/gcc-7/87c4696d57b5e= 380bc2720fdff0772b042462b7d/vmlinuz-5.5.0-rc3-00001-g87c4696d57b5e =E2=80=BA=C2=A0=C2=A0 max_uptime=3D1500 =E2=80=BA=20 RESULT_ROOT=3D/result/trinity/300s/vm-snb/yocto-minimal-i386-2019-05-20.c= gz/i386-randconfig-h001-20191225/gcc-7/87c4696d57b5e380bc2720fdff0772b042= 462b7d/8 =E2=80=BA=C2=A0=C2=A0 result_service=3Dtmpfs =E2=80=BA=C2=A0=C2=A0 debug =E2=80=BA=C2=A0=C2=A0 apic=3Ddebug =E2=80=BA=C2=A0=C2=A0 sysrq_always_enabled =E2=80=BA=C2=A0=C2=A0 rcupdate.rcu_cpu_stall_timeout=3D100 =E2=80=BA=C2=A0=C2=A0 net.ifnames=3D0 =E2=80=BA=C2=A0=C2=A0 printk.devkmsg=3Don =E2=80=BA=C2=A0=C2=A0 panic=3D-1 =E2=80=BA=C2=A0=C2=A0 softlockup_panic=3D1 =E2=80=BA=C2=A0=C2=A0 nmi_watchdog=3Dpanic =E2=80=BA=C2=A0=C2=A0 oops=3Dpanic =E2=80=BA=C2=A0=C2=A0 load_ramdisk=3D2 =E2=80=BA=C2=A0=C2=A0 prompt_ramdisk=3D0 =E2=80=BA=C2=A0=C2=A0 drbd.minor_count=3D8 =E2=80=BA=C2=A0=C2=A0 systemd.log_level=3Derr =E2=80=BA=C2=A0=C2=A0 ignore_loglevel =E2=80=BA=C2=A0=C2=A0 console=3Dtty0 =E2=80=BA=C2=A0=C2=A0 earlyprintk=3DttyS0,115200 =E2=80=BA=C2=A0=C2=A0 console=3DttyS0,115200 =E2=80=BA=C2=A0=C2=A0 vga=3Dnormal =E2=80=BA=C2=A0=C2=A0 rw =E2=80=BA=C2=A0=C2=A0 rcuperf.shutdown=3D0 =E2=80=BA=C2=A0=C2=A0 watchdog_thresh=3D60 ) "${kvm[@]}" -append "${append[*]}" We will definitely give serious thought to your suggestion. Best Regards, Rong Chen --------------F2192ED820780A63D2DD35AC Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

On 1/7/20 2:46 PM, Anshuman Khandual wrote:
On 12/27/2019 07:52 PM, kern=
el test robot wrote:

[    9.781974] kernel BUG =
at include/linux/mm.h:592!
[    9.782810] invalid opcode: 0000 [#1] PTI
[    9.783443] CPU: 0 PID: 1 Comm: swapper Not tainted 5.5.0-rc3-00001-g8=
7c4696d57b5e #1
[    9.784528] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIO=
S 1.10.2-1 04/01/2014
[    9.785756] EIP: __free_pages+0x14/0x40
[    9.786442] Code: 0c 9c 5e fa 89 d8 e8 5b f3 ff ff 56 9d 5b 5e 5d c3 8=
d 74 26 00 90 8b 48 1c 55 89 e5 85 c9 75 16 ba b4 b6 84 d6 e8 ac 49 fe ff=
 <0f> 0b 8d b4 26 00 00 00 00 8d 76 00 ff 48 1c 75 10 85 d2 75 07 e=
8
[    9.789697] EAX: d68761f7 EBX: ea52f000 ECX: ea4f8520 EDX: d684b6b4
[    9.790850] ESI: 00000000 EDI: ef45e000 EBP: ea501f08 ESP: ea501f08
[    9.791879] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010=
286
[    9.792783] CR0: 80050033 CR2: ffffffff CR3: 16d00000 CR4: 000406b0
[    9.792783] Call Trace:
[    9.792783]  free_pages+0x3c/0x50
[    9.792783]  pgd_free+0x5a/0x170
[    9.792783]  __mmdrop+0x42/0xe0
[    9.792783]  debug_vm_pgtable+0x54f/0x567
[    9.792783]  kernel_init_freeable+0x90/0x1e3
[    9.792783]  ? rest_init+0xf0/0xf0
[    9.792783]  kernel_init+0x8/0xf0
[    9.792783]  ret_from_fork+0x19/0x24
[    9.792783] Modules linked in:
[    9.792803] ---[ end trace 91b7335adcf0b656 ]---


To reproduce:

        # build kernel
	cd linux
	cp config-5.5.0-rc3-00001-g87c4696d57b5e .config
	make HOSTCC=3Dgcc-7 CC=3Dgcc-7 ARCH=3Di386 olddefconfig prepare modules_=
prepare bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attach=
ed in this email

Hello,

As the failure might be happening during boot when the test executes,
do we really need to run these LKP based QEMU environment in order to
reproduce the problem ? Could not this be recreated on a standalone
system.

- Anshuman

Hi Anshuman,

Thanks for your advice, we provided another reproduce method which is in the end of dmesg.xz file attached in original report:
but the initrd file need to be supplied.

qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-0 256G
qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-1 256G
qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-2 256G
qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-3 256G
qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-4 256G
qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-5 256G
qemu-img create -f qcow2 disk-vm-snb-89942dcb126f-6 256G

kvm=3D(
=E2=80=BA=C2=A0=C2=A0 qemu-system-x86_64
=E2=80=BA=C2=A0=C2=A0 -enable-kvm
=E2=80=BA=C2=A0=C2=A0 -cpu SandyBridge
=E2=80=BA=C2=A0=C2=A0 -kernel $kernel
=E2=80=BA=C2=A0=C2=A0 -initrd initrd-vm-snb-89942dcb126f
=E2=80=BA=C2=A0=C2=A0 -m 8192
=E2=80=BA=C2=A0=C2=A0 -smp 2
=E2=80=BA=C2=A0=C2=A0 -device e1000,netdev=3Dnet0
=E2=80=BA=C2=A0=C2=A0 -netdev user,id=3Dnet0,hostfwd=3Dtcp::32032-:22=
=E2=80=BA=C2=A0=C2=A0 -boot order=3Dnc
=E2=80=BA=C2=A0=C2=A0 -no-reboot
=E2=80=BA=C2=A0=C2=A0 -watchdog i6300esb
=E2=80=BA=C2=A0=C2=A0 -watchdog-action debug
=E2=80=BA=C2=A0=C2=A0 -rtc base=3Dlocaltime
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-0,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-1,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-2,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-3,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-4,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-5,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -drive file=3Ddisk-vm-snb-89942dcb126f-6,media=3D= disk,if=3Dvirtio
=E2=80=BA=C2=A0=C2=A0 -serial stdio
=E2=80=BA=C2=A0=C2=A0 -display none
=E2=80=BA=C2=A0=C2=A0 -monitor null
)

append=3D(
=E2=80=BA=C2=A0=C2=A0 ip=3D::::vm-snb-89942dcb126f::dhcp
=E2=80=BA=C2=A0=C2=A0 root=3D/dev/ram0
=E2=80=BA=C2=A0=C2=A0 user=3Dlkp
=E2=80=BA=C2=A0=C2=A0 job=3D/job-script
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=E2=80=BA=C2=A0=C2=A0 kconfig=3Di386-randconfig-h001-20191225
=E2=80=BA=C2=A0=C2=A0 branch=3Dlinux-devel/devel-hourly-2019122518 =E2=80=BA=C2=A0=C2=A0 commit=3D87c4696d57b5e380bc2720fdff0772b042462b= 7d
=E2=80=BA=C2=A0=C2=A0 BOOT_IMAGE=3D/pkg/linux/i386-randconfig-h001-20191225/gcc-7/87c4696d57b5e= 380bc2720fdff0772b042462b7d/vmlinuz-5.5.0-rc3-00001-g87c4696d57b5e
=E2=80=BA=C2=A0=C2=A0 max_uptime=3D1500
=E2=80=BA=C2=A0=C2=A0 RESULT_ROOT=3D/result/trinity/300s/vm-snb/yocto-minimal-i386-2019-05-20.c= gz/i386-randconfig-h001-20191225/gcc-7/87c4696d57b5e380bc2720fdff0772b042= 462b7d/8
=E2=80=BA=C2=A0=C2=A0 result_service=3Dtmpfs
=E2=80=BA=C2=A0=C2=A0 debug
=E2=80=BA=C2=A0=C2=A0 apic=3Ddebug
=E2=80=BA=C2=A0=C2=A0 sysrq_always_enabled
=E2=80=BA=C2=A0=C2=A0 rcupdate.rcu_cpu_stall_timeout=3D100
=E2=80=BA=C2=A0=C2=A0 net.ifnames=3D0
=E2=80=BA=C2=A0=C2=A0 printk.devkmsg=3Don
=E2=80=BA=C2=A0=C2=A0 panic=3D-1
=E2=80=BA=C2=A0=C2=A0 softlockup_panic=3D1
=E2=80=BA=C2=A0=C2=A0 nmi_watchdog=3Dpanic
=E2=80=BA=C2=A0=C2=A0 oops=3Dpanic
=E2=80=BA=C2=A0=C2=A0 load_ramdisk=3D2
=E2=80=BA=C2=A0=C2=A0 prompt_ramdisk=3D0
=E2=80=BA=C2=A0=C2=A0 drbd.minor_count=3D8
=E2=80=BA=C2=A0=C2=A0 systemd.log_level=3Derr
=E2=80=BA=C2=A0=C2=A0 ignore_loglevel
=E2=80=BA=C2=A0=C2=A0 console=3Dtty0
=E2=80=BA=C2=A0=C2=A0 earlyprintk=3DttyS0,115200
=E2=80=BA=C2=A0=C2=A0 console=3DttyS0,115200
=E2=80=BA=C2=A0=C2=A0 vga=3Dnormal
=E2=80=BA=C2=A0=C2=A0 rw
=E2=80=BA=C2=A0=C2=A0 rcuperf.shutdown=3D0
=E2=80=BA=C2=A0=C2=A0 watchdog_thresh=3D60
)

"${kvm[@]}" -append "${append[*]}"


We will definitely give serious thought to your suggestion.

Best Regards,
Rong Chen
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