* Re: [mm/debug] 87c4696d57: kernel_BUG_at_include/linux/mm.h
[not found] <20191227142255.GD2760@shao2-debian>
@ 2020-01-07 6:58 ` Anshuman Khandual
0 siblings, 0 replies; only message in thread
From: Anshuman Khandual @ 2020-01-07 6:58 UTC (permalink / raw)
To: kernel test robot
Cc: Mark Rutland, linux-ia64, linux-sh, Peter Zijlstra, James Hogan,
Tetsuo Handa, Heiko Carstens, Michal Hocko, linux-mm, Dave Hansen,
Paul Mackerras, sparclinux, Thomas Gleixner, linux-s390,
Michael Ellerman, x86, Russell King - ARM Linux, Matthew Wilcox,
Steven Price, Jason Gunthorpe, Gerald Schaefer, linux-snps-arc,
linux-arm-kernel, Ingo Molnar, Kees Cook, Masahiro Yamada, lkp,
Mark Brown, Kirill A . Shutemov, Dan Williams, Vlastimil Babka,
Christophe Leroy, Sri Krishna chowdary, Ard Biesheuvel,
Greg Kroah-Hartman, linux-mips, Ralf Baechle, linux-kernel,
Paul Burton, Mike Rapoport, Vineet Gupta, Martin Schwidefsky,
Andrew Morton, linuxppc-dev, David S. Miller
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 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
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
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