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Message-ID: <20191227142255.GD2760@shao2-debian>
Date: Fri, 27 Dec 2019 22:22:55 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Anshuman Khandual <anshuman.khandual@....com>
Cc: linux-mm@...ck.org, Anshuman Khandual <anshuman.khandual@....com>,
Andrew Morton <akpm@...ux-foundation.org>,
Vlastimil Babka <vbabka@...e.cz>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Mike Rapoport <rppt@...ux.vnet.ibm.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Dan Williams <dan.j.williams@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
Michal Hocko <mhocko@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Mark Brown <broonie@...nel.org>,
Steven Price <Steven.Price@....com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Kees Cook <keescook@...omium.org>,
Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
Matthew Wilcox <willy@...radead.org>,
Sri Krishna chowdary <schowdary@...dia.com>,
Dave Hansen <dave.hansen@...el.com>,
Russell King - ARM Linux <linux@...linux.org.uk>,
Michael Ellerman <mpe@...erman.id.au>,
Paul Mackerras <paulus@...ba.org>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
"David S. Miller" <davem@...emloft.net>,
Vineet Gupta <vgupta@...opsys.com>,
James Hogan <jhogan@...nel.org>,
Paul Burton <paul.burton@...s.com>,
Ralf Baechle <ralf@...ux-mips.org>,
"Kirill A . Shutemov" <kirill@...temov.name>,
Gerald Schaefer <gerald.schaefer@...ibm.com>,
Christophe Leroy <christophe.leroy@....fr>,
Ingo Molnar <mingo@...nel.org>,
linux-snps-arc@...ts.infradead.org, linux-mips@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
x86@...nel.org, linux-kernel@...r.kernel.org, lkp@...ts.01.org
Subject: [mm/debug] 87c4696d57: kernel_BUG_at_include/linux/mm.h
FYI, we noticed the following commit (built with gcc-7):
commit: 87c4696d57b5e380bc2720fdff0772b042462b7d ("[PATCH V11 RESEND] mm/debug: Add tests validating architecture page table helpers")
url: https://github.com/0day-ci/linux/commits/Anshuman-Khandual/mm-debug-Add-tests-validating-architecture-page-table-helpers/20191225-180158
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+--------------------------------------------------+----------+------------+
| | v5.5-rc3 | 87c4696d57 |
+--------------------------------------------------+----------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 153 | 12 |
| BUG:workqueue_lockup-pool | 121 | |
| BUG:soft_lockup-CPU##stuck_for#s![dma-fence:#:#] | 25 | |
| EIP:thread_signal_callback | 14 | |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 25 | |
| EIP:kthread_should_stop | 11 | |
| BUG:kernel_hang_in_boot_stage | 7 | |
| kernel_BUG_at_include/linux/mm.h | 0 | 12 |
| invalid_opcode:#[##] | 0 | 12 |
| EIP:__free_pages | 0 | 12 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 12 |
+--------------------------------------------------+----------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
[ 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 c3 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: 00010286
[ 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=gcc-7 CC=gcc-7 ARCH=i386 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 attached in this email
Thanks,
Rong Chen
View attachment "config-5.5.0-rc3-00001-g87c4696d57b5e" of type "text/plain" (147084 bytes)
View attachment "job-script" of type "text/plain" (4379 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (5372 bytes)
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