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Message-ID: <202210271449.445fce6-oliver.sang@intel.com>
Date: Thu, 27 Oct 2022 16:03:27 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Kees Cook <keescook@...omium.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
Vlastimil Babka <vbabka@...e.cz>,
Andrey Konovalov <andreyknvl@...il.com>,
David Rientjes <rientjes@...gle.com>,
Marco Elver <elver@...gle.com>,
Vincenzo Frascino <vincenzo.frascino@....com>,
Andrew Morton <akpm@...ux-foundation.org>,
<linux-mm@...ck.org>, Kees Cook <keescook@...omium.org>,
<linux-kernel@...r.kernel.org>, <linux-hardening@...r.kernel.org>
Subject: Re: [PATCH v3] mempool: Do not use ksize() for poisoning
Greeting,
FYI, we noticed WARNING:at_kernel/locking/lockdep.c:#__lock_acquire due to commit (built with clang-14):
commit: 216fd003b5aca1c27d62df679cd722730b886919 ("[PATCH v3] mempool: Do not use ksize() for poisoning")
url: https://github.com/intel-lab-lkp/linux/commits/Kees-Cook/mempool-Do-not-use-ksize-for-poisoning/20221026-073834
base: https://git.kernel.org/cgit/linux/kernel/git/kees/linux.git for-next/pstore
patch link: https://lore.kernel.org/linux-mm/20221025233421.you.825-kees@kernel.org
patch subject: [PATCH v3] mempool: Do not use ksize() for poisoning
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):
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202210271449.445fce6-oliver.sang@intel.com
[ 4.181184][ T1] ------------[ cut here ]------------
[ 4.181613][ T1] DEBUG_LOCKS_WARN_ON(1)
[ 4.181613][ T1] WARNING: CPU: 1 PID: 1 at kernel/locking/lockdep.c:231 __lock_acquire (lockdep.c:?)
[ 4.181613][ T1] Modules linked in:
[ 4.181613][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc1-00012-g216fd003b5ac #1
[ 4.181613][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
[ 4.181613][ T1] EIP: __lock_acquire (lockdep.c:?)
[ 4.181613][ T1] Code: bd 96 00 85 c0 0f 84 b4 02 00 00 83 3d b8 c0 4c 45 00 0f 85 a7 02 00 00 68 c3 07 29 44 68 44 7b 13 44 e8 a7 53 f8 ff 83 c4 08 <0f> 0b 8b 4d f0 eb 09 6b c0 64 8d b0 10 38 71 45 8a 5e 60 b8 ff 1f
All code
========
0: bd 96 00 85 c0 mov $0xc0850096,%ebp
5: 0f 84 b4 02 00 00 je 0x2bf
b: 83 3d b8 c0 4c 45 00 cmpl $0x0,0x454cc0b8(%rip) # 0x454cc0ca
12: 0f 85 a7 02 00 00 jne 0x2bf
18: 68 c3 07 29 44 pushq $0x442907c3
1d: 68 44 7b 13 44 pushq $0x44137b44
22: e8 a7 53 f8 ff callq 0xfffffffffff853ce
27: 83 c4 08 add $0x8,%esp
2a:* 0f 0b ud2 <-- trapping instruction
2c: 8b 4d f0 mov -0x10(%rbp),%ecx
2f: eb 09 jmp 0x3a
31: 6b c0 64 imul $0x64,%eax,%eax
34: 8d b0 10 38 71 45 lea 0x45713810(%rax),%esi
3a: 8a 5e 60 mov 0x60(%rsi),%bl
3d: b8 .byte 0xb8
3e: ff 1f lcall *(%rdi)
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 8b 4d f0 mov -0x10(%rbp),%ecx
5: eb 09 jmp 0x10
7: 6b c0 64 imul $0x64,%eax,%eax
a: 8d b0 10 38 71 45 lea 0x45713810(%rax),%esi
10: 8a 5e 60 mov 0x60(%rsi),%bl
13: b8 .byte 0xb8
14: ff 1f lcall *(%rdi)
[ 4.181613][ T1] EAX: 00000016 EBX: 00080000 ECX: 00000000 EDX: 00000000
[ 4.181613][ T1] ESI: 00000000 EDI: 403e0610 EBP: 40397ad0 ESP: 40397a30
[ 4.181613][ T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010016
[ 4.181613][ T1] CR0: 80050033 CR2: 00000000 CR3: 05654000 CR4: 00000690
[ 4.181613][ T1] Call Trace:
[ 4.181613][ T1] ? __lock_acquire (lockdep.c:?)
[ 4.181613][ T1] ? update_cfs_rq_load_avg (fair.c:?)
[ 4.181613][ T1] ? lock_acquire (??:?)
[ 4.181613][ T1] ? ___slab_alloc (slub.c:?)
[ 4.181613][ T1] ? _raw_spin_lock_irqsave (??:?)
[ 4.181613][ T1] ? ___slab_alloc (slub.c:?)
[ 4.181613][ T1] ? __cond_resched (??:?)
[ 4.181613][ T1] ? slab_pre_alloc_hook (slub.c:?)
[ 4.181613][ T1] ? kmem_cache_alloc (??:?)
[ 4.181613][ T1] ? mempool_alloc_slab (??:?)
[ 4.181613][ T1] ? mempool_init_node (??:?)
[ 4.181613][ T1] ? mempool_init (??:?)
[ 4.181613][ T1] ? mempool_alloc_slab (??:?)
[ 4.181613][ T1] ? bioset_init (??:?)
[ 4.181613][ T1] ? mempool_alloc_slab (??:?)
[ 4.181613][ T1] ? init_bio (bio.c:?)
[ 4.181613][ T1] ? blkdev_init (bio.c:?)
[ 4.181613][ T1] ? do_one_initcall (??:?)
[ 4.181613][ T1] ? blkdev_init (bio.c:?)
[ 4.181613][ T1] ? do_initcall_level (main.c:?)
[ 4.181613][ T1] ? do_initcalls (main.c:?)
[ 4.181613][ T1] ? do_basic_setup (main.c:?)
[ 4.181613][ T1] ? kernel_init_freeable (main.c:?)
[ 4.181613][ T1] ? rest_init (main.c:?)
[ 4.181613][ T1] ? kernel_init (main.c:?)
[ 4.181613][ T1] ? rest_init (main.c:?)
[ 4.181613][ T1] ? ret_from_fork (??:?)
[ 4.181613][ T1] irq event stamp: 52976
[ 4.181613][ T1] hardirqs last enabled at (52975): __schedule (core.c:?)
[ 4.181613][ T1] hardirqs last disabled at (52976): _raw_spin_lock_irqsave (??:?)
[ 4.181613][ T1] softirqs last enabled at (52954): __do_softirq (??:?)
[ 4.181613][ T1] softirqs last disabled at (52949): do_softirq_own_stack (??:?)
[ 4.181613][ T1] ---[ end trace 0000000000000000 ]---
To reproduce:
# build kernel
cd linux
cp config-6.1.0-rc1-00012-g216fd003b5ac .config
make HOSTCC=clang-14 CC=clang-14 ARCH=i386 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=clang-14 CC=clang-14 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-6.1.0-rc1-00012-g216fd003b5ac" of type "text/plain" (159403 bytes)
View attachment "job-script" of type "text/plain" (4892 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (11516 bytes)
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