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Message-ID: <202305221624.b202695a-yujie.liu@intel.com>
Date: Mon, 22 May 2023 16:25:31 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Nicholas Piggin <npiggin@...il.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>,
Nicholas Piggin <npiggin@...il.com>,
<linux-arch@...r.kernel.org>,
"Thomas Gleixner" <tglx@...utronix.de>,
Peter Zijlstra <peterz@...radead.org>
Subject: Re: [RFC PATCH 3/3] irqflags: Warn on irq disable when disabled and
enable when enabled
Hello,
kernel test robot noticed "WARNING:at_kernel/locking/irqflag-debug.c:#warn_bogus_irq_disable" on:
commit: d91910ca3451a1d633351e3492117ca62054eb92 ("[RFC PATCH 3/3] irqflags: Warn on irq disable when disabled and enable when enabled")
url: https://github.com/intel-lab-lkp/linux/commits/Nicholas-Piggin/hrtimer-balance-irq-save-restore/20230509-191049
base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git 158009f1b4a33bc0f354b994eea361362bd83226
patch link: https://lore.kernel.org/all/20230509110739.241735-4-npiggin@gmail.com/
patch subject: [RFC PATCH 3/3] irqflags: Warn on irq disable when disabled and enable when enabled
in testcase: trinity
version:
with following parameters:
runtime: 600s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
compiler: clang-14
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202305221624.b202695a-yujie.liu@intel.com
[ 0.010000][ C0] ------------[ cut here ]------------
[ 0.010000][ C0] raw_local_irq_disable() called with IRQs disabled
[ 0.010000][ C0] WARNING: CPU: 0 PID: 0 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_disable (kernel/locking/irqflag-debug.c:10)
[ 0.010000][ C0] Modules linked in:
[ 0.010000][ C0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.3.0-rc3-00033-gd91910ca3451 #1 4790732644a1b20c085ca6f51351525a5135ad3c
[ 0.010000][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014
[ 0.010000][ C0] EIP: warn_bogus_irq_disable (kernel/locking/irqflag-debug.c:10)
[ 0.010000][ C0] Code: b3 e9 e9 fe ff ff 00 00 55 89 e5 80 3d 7d f1 48 b3 00 74 02 5d c3 c6 05 7d f1 48 b3 01 68 ea 43 d0 b2 e8 81 38 f0 fe 83 c4 04 <0f> 0b 5d c3 90 90 90 90 90 90 90 90 90 90 55 89 e5 80 3d 7e f1 48
All code
========
0: b3 e9 mov $0xe9,%bl
2: e9 fe ff ff 00 jmp 0x1000005
7: 00 55 89 add %dl,-0x77(%rbp)
a: e5 80 in $0x80,%eax
c: 3d 7d f1 48 b3 cmp $0xb348f17d,%eax
11: 00 74 02 5d add %dh,0x5d(%rdx,%rax,1)
15: c3 ret
16: c6 05 7d f1 48 b3 01 movb $0x1,-0x4cb70e83(%rip) # 0xffffffffb348f19a
1d: 68 ea 43 d0 b2 push $0xffffffffb2d043ea
22: e8 81 38 f0 fe call 0xfffffffffef038a8
27: 83 c4 04 add $0x4,%esp
2a:* 0f 0b ud2 <-- trapping instruction
2c: 5d pop %rbp
2d: c3 ret
2e: 90 nop
2f: 90 nop
30: 90 nop
31: 90 nop
32: 90 nop
33: 90 nop
34: 90 nop
35: 90 nop
36: 90 nop
37: 90 nop
38: 55 push %rbp
39: 89 e5 mov %esp,%ebp
3b: 80 .byte 0x80
3c: 3d .byte 0x3d
3d: 7e f1 jle 0x30
3f: 48 rex.W
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 5d pop %rbp
3: c3 ret
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 55 push %rbp
f: 89 e5 mov %esp,%ebp
11: 80 .byte 0x80
12: 3d .byte 0x3d
13: 7e f1 jle 0x6
15: 48 rex.W
[ 0.010000][ C0] EAX: 00000031 EBX: 00000030 ECX: 00000000 EDX: b2e15db8
[ 0.010000][ C0] ESI: 00200096 EDI: 00000030 EBP: b2e15e64 ESP: b2e15e64
[ 0.010000][ C0] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00210082
[ 0.010000][ C0] CR0: 80050033 CR2: ffd99000 CR3: 035b4000 CR4: 00040690
[ 0.010000][ C0] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 0.010000][ C0] DR6: fffe0ff0 DR7: 00000400
[ 0.010000][ C0] Call Trace:
[ 0.010000][ C0] __irq_exit_rcu (kernel/softirq.c:?)
[ 0.010000][ C0] irq_exit_rcu (kernel/softirq.c:664)
[ 0.010000][ C0] common_interrupt (arch/x86/kernel/irq.c:240)
[ 0.010000][ C0] asm_common_interrupt (arch/x86/entry/entry_32.S:636)
[ 0.010000][ C0] EIP: _raw_spin_unlock_irqrestore (kernel/locking/spinlock.c:195)
[ 0.010000][ C0] Code: 74 05 e8 07 dc fb fe c7 45 f4 ff ff ff ff 9c 8f 45 f4 f7 45 f4 00 02 00 00 75 16 f7 c6 00 02 00 00 74 01 fb ff 0d 84 e8 48 b3 <83> c4 04 5e 5f 5d c3 e8 58 49 ff ff f7 c6 00 02 00 00 75 e5 eb e4
All code
========
0: 74 05 je 0x7
2: e8 07 dc fb fe call 0xfffffffffefbdc0e
7: c7 45 f4 ff ff ff ff movl $0xffffffff,-0xc(%rbp)
e: 9c pushf
f: 8f 45 f4 pop -0xc(%rbp)
12: f7 45 f4 00 02 00 00 testl $0x200,-0xc(%rbp)
19: 75 16 jne 0x31
1b: f7 c6 00 02 00 00 test $0x200,%esi
21: 74 01 je 0x24
23: fb sti
24: ff 0d 84 e8 48 b3 decl -0x4cb7177c(%rip) # 0xffffffffb348e8ae
2a:* 83 c4 04 add $0x4,%esp <-- trapping instruction
2d: 5e pop %rsi
2e: 5f pop %rdi
2f: 5d pop %rbp
30: c3 ret
31: e8 58 49 ff ff call 0xffffffffffff498e
36: f7 c6 00 02 00 00 test $0x200,%esi
3c: 75 e5 jne 0x23
3e: eb e4 jmp 0x24
Code starting with the faulting instruction
===========================================
0: 83 c4 04 add $0x4,%esp
3: 5e pop %rsi
4: 5f pop %rdi
5: 5d pop %rbp
6: c3 ret
7: e8 58 49 ff ff call 0xffffffffffff4964
c: f7 c6 00 02 00 00 test $0x200,%esi
12: 75 e5 jne 0xfffffffffffffff9
14: eb e4 jmp 0xfffffffffffffffa
[ 0.010000][ C0] EAX: 00000193 EBX: b5dfd634 ECX: 00000000 EDX: b2e259b0
[ 0.010000][ C0] ESI: 00200282 EDI: b5dfd660 EBP: b2e15f08 ESP: b2e15efc
[ 0.010000][ C0] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00200202
[ 0.010000][ C0] ? _raw_spin_unlock_irqrestore (kernel/locking/spinlock.c:195)
[ 0.010000][ C0] __setup_irq (kernel/irq/internals.h:155)
[ 0.010000][ C0] request_threaded_irq (kernel/irq/manage.c:2201)
[ 0.010000][ C0] setup_default_timer_irq (include/linux/interrupt.h:168 arch/x86/kernel/time.c:70)
[ 0.010000][ C0] hpet_time_init (arch/x86/kernel/time.c:?)
[ 0.010000][ C0] x86_late_time_init (arch/x86/kernel/time.c:100)
[ 0.010000][ C0] start_kernel (init/main.c:1117)
[ 0.010000][ C0] i386_start_kernel (arch/x86/kernel/head32.c:57)
[ 0.010000][ C0] startup_32_smp (arch/x86/kernel/head_32.S:319)
[ 0.010000][ C0] irq event stamp: 404
[ 0.010000][ C0] hardirqs last enabled at (403): _raw_spin_unlock_irqrestore (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:67 arch/x86/include/asm/irqflags.h:127 include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 0.010000][ C0] hardirqs last disabled at (404): common_interrupt (arch/x86/kernel/irq.c:?)
[ 0.010000][ C0] softirqs last enabled at (0): 0x0
[ 0.010000][ C0] softirqs last disabled at (0): 0x0
[ 0.010000][ C0] ---[ end trace 0000000000000000 ]---
To reproduce:
# build kernel
cd linux
cp config-6.3.0-rc3-00033-gd91910ca3451 .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://github.com/intel/lkp-tests/wiki
View attachment "config-6.3.0-rc3-00033-gd91910ca3451" of type "text/plain" (150203 bytes)
View attachment "job-script" of type "text/plain" (4424 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (54688 bytes)
View attachment "trinity" of type "text/plain" (3100 bytes)
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