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Date: Thu, 14 Oct 2021 16:54:50 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Vlastimil Babka <vbabka@...e.cz>
Cc: 0day robot <lkp@...el.com>, Dmitry Vyukov <dvyukov@...gle.com>,
Marco Elver <elver@...gle.com>,
Vijayanand Jitta <vjitta@...eaurora.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Andrey Ryabinin <ryabinin.a.a@...il.com>,
Alexander Potapenko <glider@...gle.com>,
Andrey Konovalov <andreyknvl@...il.com>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Oliver Glitta <glittao@...il.com>,
Imran Khan <imran.f.khan@...cle.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
kasan-dev@...glegroups.com, Vlastimil Babka <vbabka@...e.cz>
Subject: [lib/stackdepot] 1cd8ce52c5:
BUG:unable_to_handle_page_fault_for_address
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: 1cd8ce52c520c26c513899fb5aee42b8e5f60d0d ("[PATCH v2] lib/stackdepot: allow optional init and stack_table allocation by kvmalloc()")
url: https://github.com/0day-ci/linux/commits/Vlastimil-Babka/lib-stackdepot-allow-optional-init-and-stack_table-allocation-by-kvmalloc/20211012-170816
base: git://anongit.freedesktop.org/drm-intel for-linux-next
in testcase: rcutorture
version:
with following parameters:
runtime: 300s
test: cpuhotplug
torture_type: srcud
test-description: rcutorture is rcutorture kernel module load/unload test.
test-url: https://www.kernel.org/doc/Documentation/RCU/torture.txt
on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------+------------+------------+
| | a94a6d76c9 | 1cd8ce52c5 |
+---------------------------------------------+------------+------------+
| boot_successes | 30 | 0 |
| boot_failures | 0 | 7 |
| BUG:kernel_NULL_pointer_dereference,address | 0 | 2 |
| Oops:#[##] | 0 | 7 |
| EIP:stack_depot_save | 0 | 7 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 7 |
| BUG:unable_to_handle_page_fault_for_address | 0 | 5 |
+---------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
[ 319.147926][ T259] BUG: unable to handle page fault for address: 0ec74110
[ 319.149309][ T259] #PF: supervisor read access in kernel mode
[ 319.150362][ T259] #PF: error_code(0x0000) - not-present page
[ 319.151372][ T259] *pde = 00000000
[ 319.151964][ T259] Oops: 0000 [#1] SMP
[ 319.152617][ T259] CPU: 0 PID: 259 Comm: systemd-rc-loca Not tainted 5.15.0-rc1-00270-g1cd8ce52c520 #1
[ 319.154514][ T259] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 319.156200][ T259] EIP: stack_depot_save+0x12a/0x4d0
[ 319.157287][ T259] Code: ff 0f 00 8d 04 90 89 45 dc 8b 18 85 db 0f 84 0d 01 00 00 8b 55 e8 eb 12 8d b4 26 00 00 00 00 90 8b 1b 85 db 0f 84 f6 00 00 00 <39> 73 04
75 f1 3b 53 08 75 ec 8b 4d e4 31 c0 8d b4 26 00 00 00 00
[ 319.161025][ T259] EAX: f286870c EBX: 0ec7410c ECX: ae94980e EDX: 00000010
[ 319.163557][ T259] ESI: ca0ea9c3 EDI: 6e32801a EBP: bec0bc90 ESP: bec0bc5c
[ 319.164952][ T259] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010206
[ 319.166533][ T259] CR0: 80050033 CR2: 0ec74110 CR3: 0373f000 CR4: 00000690
[ 319.167965][ T259] Call Trace:
[ 319.168625][ T259] save_stack+0x66/0x90
[ 319.169561][ T259] ? free_pcp_prepare+0x192/0x340
[ 319.170597][ T259] ? free_unref_page+0x18/0x210
[ 319.171478][ T259] ? __free_pages+0xa7/0xd0
[ 319.172294][ T259] ? put_task_stack+0x9d/0x140
[ 319.173115][ T259] ? finish_task_switch+0x180/0x240
[ 319.174197][ T259] ? __schedule+0x39a/0xc00
[ 319.175268][ T259] ? preempt_schedule_common+0x1c/0x30
[ 319.176344][ T259] ? __cond_resched+0x25/0x30
[ 319.177302][ T259] ? unmap_page_range+0x366/0x7a0
[ 319.178325][ T259] ? unmap_single_vma+0x55/0xc0
[ 319.179247][ T259] ? unmap_vmas+0x35/0x50
[ 319.180072][ T259] ? exit_mmap+0x72/0x1c0
[ 319.180894][ T259] ? mmput+0x61/0x100
[ 319.181663][ T259] ? do_exit+0x296/0xa50
[ 319.182511][ T259] ? do_group_exit+0x31/0x90
[ 319.183380][ T259] ? __ia32_sys_exit_group+0x10/0x10
[ 319.184357][ T259] __reset_page_owner+0x36/0x90
[ 319.185331][ T259] free_pcp_prepare+0x192/0x340
[ 319.186292][ T259] free_unref_page+0x18/0x210
[ 319.187183][ T259] __free_pages+0xa7/0xd0
[ 319.188035][ T259] put_task_stack+0x9d/0x140
[ 319.188928][ T259] finish_task_switch+0x180/0x240
[ 319.189949][ T259] ? finish_task_switch+0x52/0x240
[ 319.190896][ T259] __schedule+0x39a/0xc00
[ 319.191645][ T259] ? find_held_lock+0x2a/0x90
[ 319.192566][ T259] preempt_schedule_common+0x1c/0x30
[ 319.193495][ T259] __cond_resched+0x25/0x30
[ 319.194320][ T259] unmap_page_range+0x366/0x7a0
[ 319.195237][ T259] unmap_single_vma+0x55/0xc0
[ 319.196144][ T259] unmap_vmas+0x35/0x50
[ 319.196942][ T259] exit_mmap+0x72/0x1c0
[ 319.197742][ T259] ? up_read+0x16/0x240
[ 319.198527][ T259] mmput+0x61/0x100
[ 319.199208][ T259] do_exit+0x296/0xa50
[ 319.199930][ T259] do_group_exit+0x31/0x90
[ 319.200757][ T259] ? __might_fault+0x79/0x80
[ 319.201653][ T259] __ia32_sys_exit_group+0x10/0x10
[ 319.202662][ T259] __do_fast_syscall_32+0x5b/0xd0
[ 319.203658][ T259] do_fast_syscall_32+0x32/0x70
[ 319.204650][ T259] do_SYSENTER_32+0x15/0x20
[ 319.205571][ T259] entry_SYSENTER_32+0x98/0xe7
[ 319.206581][ T259] EIP: 0x37f47549
[ 319.207276][ T259] Code: Unable to access opcode bytes at RIP 0x37f4751f.
[ 319.208586][ T259] EAX: ffffffda EBX: 00000000 ECX: 37d181d8 EDX: 00000000
[ 319.209955][ T259] ESI: 00000000 EDI: 37d152f0 EBP: 37d181e0 ESP: 3fc3cf2c
[ 319.211250][ T259] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 007b EFLAGS: 00000216
[ 319.212737][ T259] Modules linked in:
[ 319.213484][ T259] CR2: 000000000ec74110
[ 319.214357][ T259] ---[ end trace d840069cc585ecdc ]---
[ 319.215361][ T259] EIP: stack_depot_save+0x12a/0x4d0
[ 319.216296][ T259] Code: ff 0f 00 8d 04 90 89 45 dc 8b 18 85 db 0f 84 0d 01 00 00 8b 55 e8 eb 12 8d b4 26 00 00 00 00 90 8b 1b 85 db 0f 84 f6 00 00 00 <39> 73 04 75 f1 3b 53 08 75 ec 8b 4d e4 31 c0 8d b4 26 00 00 00 00
[ 319.219967][ T259] EAX: f286870c EBX: 0ec7410c ECX: ae94980e EDX: 00000010
[ 319.221339][ T259] ESI: ca0ea9c3 EDI: 6e32801a EBP: bec0bc90 ESP: bec0bc5c
[ 319.222743][ T259] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010206
[ 319.224002][ T259] CR0: 80050033 CR2: 0ec74110 CR3: 0373f000 CR4: 00000690
[ 319.225147][ T259] Kernel panic - not syncing: Fatal exception
[ 319.226616][ T259] Kernel Offset: disabled
To reproduce:
# build kernel
cd linux
cp config-5.15.0-rc1-00270-g1cd8ce52c520 .config
make HOSTCC=gcc-9 CC=gcc-9 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
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
View attachment "config-5.15.0-rc1-00270-g1cd8ce52c520" of type "text/plain" (127611 bytes)
View attachment "job-script" of type "text/plain" (4900 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (19700 bytes)
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