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Message-ID: <20220608154404.GD31193@xsang-OptiPlex-9020>
Date: Wed, 8 Jun 2022 23:44:04 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Ansuel Smith <ansuelsmth@...il.com>
Cc: 0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
linux-mtd@...ts.infradead.org, lkp@...ts.01.org,
Miquel Raynal <miquel.raynal@...tlin.com>,
Richard Weinberger <richard@....at>,
Vignesh Raghavendra <vigneshr@...com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jens Axboe <axboe@...nel.dk>,
Ansuel Smith <ansuelsmth@...il.com>,
�ecki <rafal@...ecki.pl>,
Manivannan Sadhasivam <mani@...nel.org>,
devicetree@...r.kernel.org
Subject: [mtd] a2af0cae87: BUG:kernel_NULL_pointer_dereference,address
Greeting,
FYI, we noticed the following commit (built with gcc-11):
commit: a2af0cae87a0205f2f4b89da6e628229a2f8c47f ("[PATCH v5 3/3] mtd: core: introduce of support for dynamic partitions")
url: https://github.com/intel-lab-lkp/linux/commits/Ansuel-Smith/Add-nvmem-support-for-dynamic-partitions/20220606-232755
base: https://git.kernel.org/cgit/linux/kernel/git/mtd/linux.git mtd/next
patch link: https://lore.kernel.org/linux-mtd/20220606151417.19227-4-ansuelsmth@gmail.com
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------+------------+------------+
| | 96a45c785b | a2af0cae87 |
+---------------------------------------------+------------+------------+
| boot_successes | 25 | 0 |
| boot_failures | 0 | 12 |
| BUG:kernel_NULL_pointer_dereference,address | 0 | 12 |
| Oops:#[##] | 0 | 12 |
| EIP:add_mtd_device | 0 | 12 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 12 |
+---------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>
[ 2.820056][ T1] BUG: kernel NULL pointer dereference, address: 00000360
[ 2.821034][ T1] #PF: supervisor read access in kernel mode
[ 2.821862][ T1] #PF: error_code(0x0000) - not-present page
[ 2.822468][ T1] *pde = 00000000
[ 2.822468][ T1] Oops: 0000 [#1]
[ 2.822468][ T1] CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0-rc3-00074-ga2af0cae87a0 #1
[ 2.822468][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
[ 2.822468][ T1] EIP: add_mtd_device+0x32d/0x6a0
[ 2.822468][ T1] Code: 01 ff ff ff 8d 50 ff 85 c2 0f 84 ec fe ff ff 31 c0 e9 ef fe ff ff 8d b4 26 00 00 00 00 8b 83 cc 03 00 00 3d 08 ff ff ff 74 0e <8b> 80 60 03 00 00 85 c0 0f 85 65 01 00 00 8b 7d 84 89 f8 e8 3b 61
[ 2.822468][ T1] EAX: 00000000 EBX: c6eaa000 ECX: 00000001 EDX: 00000000
[ 2.822468][ T1] ESI: 00000000 EDI: c6eaa0f8 EBP: c3f0becc ESP: c3f0be44
[ 2.822468][ T1] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010213
[ 2.822468][ T1] CR0: 80050033 CR2: 00000360 CR3: 0345a000 CR4: 000406d0
[ 2.822468][ T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 2.822468][ T1] DR6: fffe0ff0 DR7: 00000400
[ 2.822468][ T1] Call Trace:
[ 2.822468][ T1] ? parse_ofoldpart_partitions+0x60/0x60
[ 2.822468][ T1] ? mtd_part_of_parse+0x118/0x240
[ 2.822468][ T1] ? mtd_part_of_parse+0x20e/0x240
[ 2.822468][ T1] ? parse_mtd_partitions+0xfa/0x200
[ 2.822468][ T1] mtd_device_parse_register+0x19f/0x2b0
[ 2.822468][ T1] mtdram_init_device+0xb7/0x100
[ 2.822468][ T1] init_mtdram+0x67/0xaf
[ 2.822468][ T1] ? init_phram+0x54/0x54
[ 2.822468][ T1] do_one_initcall+0x58/0x240
[ 2.822468][ T1] ? rdinit_setup+0x38/0x38
[ 2.822468][ T1] do_initcalls+0xf3/0x112
[ 2.822468][ T1] kernel_init_freeable+0xbd/0xec
[ 2.822468][ T1] ? rest_init+0x100/0x100
[ 2.822468][ T1] kernel_init+0x12/0xf0
[ 2.822468][ T1] ret_from_fork+0x1c/0x30
[ 2.822468][ T1] Modules linked in:
[ 2.822468][ T1] CR2: 0000000000000360
[ 2.822468][ T1] ---[ end trace 0000000000000000 ]---
[ 2.822468][ T1] EIP: add_mtd_device+0x32d/0x6a0
[ 2.822468][ T1] Code: 01 ff ff ff 8d 50 ff 85 c2 0f 84 ec fe ff ff 31 c0 e9 ef fe ff ff 8d b4 26 00 00 00 00 8b 83 cc 03 00 00 3d 08 ff ff ff 74 0e <8b> 80 60 03 00 00 85 c0 0f 85 65 01 00 00 8b 7d 84 89 f8 e8 3b 61
[ 2.822468][ T1] EAX: 00000000 EBX: c6eaa000 ECX: 00000001 EDX: 00000000
[ 2.822468][ T1] ESI: 00000000 EDI: c6eaa0f8 EBP: c3f0becc ESP: c3f0be44
[ 2.822468][ T1] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010213
[ 2.822468][ T1] CR0: 80050033 CR2: 00000360 CR3: 0345a000 CR4: 000406d0
[ 2.822468][ T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 2.822468][ T1] DR6: fffe0ff0 DR7: 00000400
[ 2.822468][ T1] Kernel panic - not syncing: Fatal exception
[ 2.822468][ T1] Kernel Offset: disabled
To reproduce:
# build kernel
cd linux
cp config-5.18.0-rc3-00074-ga2af0cae87a0 .config
make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=gcc-11 CC=gcc-11 ARCH=i386 INSTALL_MOD_PATH=<mod-install-dir> modules_install
cd <mod-install-dir>
find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> -m modules.cgz 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.
--
0-DAY CI Kernel Test Service
https://01.org/lkp
View attachment "config-5.18.0-rc3-00074-ga2af0cae87a0" of type "text/plain" (145666 bytes)
View attachment "job-script" of type "text/plain" (4661 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (10428 bytes)
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