| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <202211072243.f6b8c13b-yujie.liu@intel.com>
Date: Mon, 7 Nov 2022 23:53:00 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Waiman Long <longman@...hat.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
<linux-kernel@...r.kernel.org>, <x86@...nel.org>
Subject: [tip:sched/core] [sched] 8f9ea86fdf:
WARNING:at_kernel/rcu/update.c:#rcutorture_sched_setaffinity
Greeting,
FYI, we noticed WARNING:at_kernel/rcu/update.c:#rcutorture_sched_setaffinity due to commit (built with gcc-11):
commit: 8f9ea86fdf99b81458cc21fc1c591fcd4a0fa1f4 ("sched: Always preserve the user requested cpumask")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/core
[test failed on linux-next/master 0cdb3579f1ee4c1e55acf8dfb0697b660067b1f8]
in testcase: rcutorture
version:
with following parameters:
runtime: 300s
test: cpuhotplug
torture_type: trivial
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-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
[ 82.605945][ T465] ------------[ cut here ]------------
[ 82.607046][ T465] rcutorture_sched_setaffinity: sched_setaffinity() returned -22
[ 82.608499][ T465] WARNING: CPU: 0 PID: 465 at kernel/rcu/update.c:495 rcutorture_sched_setaffinity (??:?)
[ 82.610400][ T465] Modules linked in: rcutorture torture
[ 82.611509][ T465] CPU: 0 PID: 465 Comm: rcu_torture_fak Tainted: G W 6.1.0-rc2-00013-g8f9ea86fdf99 #1
[ 82.613518][ T465] EIP: rcutorture_sched_setaffinity (??:?)
[ 82.614702][ T465] Code: 59 fc ff 85 c0 74 2b 80 3d a2 90 14 83 00 75 22 50 68 78 29 c5 81 68 a7 cf 2d 82 89 45 fc c6 05 a2 90 14 83 01 e8 a3 48 b5 00 <0f> 0b 8b 45 fc 83 c4 0c c9 c3 3e 8d 74 26 00 55 31 d2 80 3d fc 43
All code
========
0: 59 pop %rcx
1: fc cld
2: ff 85 c0 74 2b 80 incl -0x7fd48b40(%rbp)
8: 3d a2 90 14 83 cmp $0x831490a2,%eax
d: 00 75 22 add %dh,0x22(%rbp)
10: 50 push %rax
11: 68 78 29 c5 81 pushq $0xffffffff81c52978
16: 68 a7 cf 2d 82 pushq $0xffffffff822dcfa7
1b: 89 45 fc mov %eax,-0x4(%rbp)
1e: c6 05 a2 90 14 83 01 movb $0x1,-0x7ceb6f5e(%rip) # 0xffffffff831490c7
25: e8 a3 48 b5 00 callq 0xb548cd
2a:* 0f 0b ud2 <-- trapping instruction
2c: 8b 45 fc mov -0x4(%rbp),%eax
2f: 83 c4 0c add $0xc,%esp
32: c9 leaveq
33: c3 retq
34: 3e 8d 74 26 00 lea %ds:0x0(%rsi,%riz,1),%esi
39: 55 push %rbp
3a: 31 d2 xor %edx,%edx
3c: 80 .byte 0x80
3d: 3d .byte 0x3d
3e: fc cld
3f: 43 rex.XB
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 8b 45 fc mov -0x4(%rbp),%eax
5: 83 c4 0c add $0xc,%esp
8: c9 leaveq
9: c3 retq
a: 3e 8d 74 26 00 lea %ds:0x0(%rsi,%riz,1),%esi
f: 55 push %rbp
10: 31 d2 xor %edx,%edx
12: 80 .byte 0x80
13: 3d .byte 0x3d
14: fc cld
15: 43 rex.XB
[ 82.618297][ T465] EAX: 0000003e EBX: 00000001 ECX: e8cb7fd4 EDX: 0100144e
[ 82.619690][ T465] ESI: 00000002 EDI: eeabb900 EBP: edc07f50 ESP: edc07f40
[ 82.621136][ T465] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010292
[ 82.622326][ T465] CR0: 80050033 CR2: 74906004 CR3: 05741620 CR4: 000006f0
[ 82.623602][ T465] Call Trace:
[ 82.624335][ T465] synchronize_rcu_trivial (rcutorture.c:?) rcutorture
[ 82.625480][ T465] rcu_torture_fakewriter (rcutorture.c:?) rcutorture
[ 82.626595][ T465] ? __kthread_parkme (kthread.c:?)
[ 82.627564][ T465] kthread (kthread.c:?)
[ 82.628316][ T465] ? rcu_torture_read_unlock (rcutorture.c:?) rcutorture
[ 82.629545][ T465] ? kthread_complete_and_exit (kthread.c:?)
[ 82.630643][ T465] ret_from_fork (??:?)
[ 82.631594][ T465] irq event stamp: 140123
[ 82.632458][ T465] hardirqs last enabled at (140133): __up_console_sem (printk.c:?)
[ 82.634121][ T465] hardirqs last disabled at (140142): __up_console_sem (printk.c:?)
[ 82.635690][ T465] softirqs last enabled at (139932): __do_softirq (??:?)
[ 82.637361][ T465] softirqs last disabled at (140161): do_softirq_own_stack (??:?)
[ 82.639123][ T465] ---[ end trace 0000000000000000 ]---
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202211072243.f6b8c13b-yujie.liu@intel.com
To reproduce:
# build kernel
cd linux
cp config-6.1.0-rc2-00013-g8f9ea86fdf99 .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-6.1.0-rc2-00013-g8f9ea86fdf99" of type "text/plain" (148411 bytes)
View attachment "job-script" of type "text/plain" (5442 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (105356 bytes)
View attachment "rcutorture" of type "text/plain" (10240 bytes)
Powered by blists - more mailing lists