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Message-ID: <202409261230.c7f0e4eb-lkp@intel.com>
Date: Thu, 26 Sep 2024 14:13:09 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Yafang Shao <laoar.shao@...il.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
<aubrey.li@...ux.intel.com>, <yu.c.chen@...el.com>, <mingo@...hat.com>,
<peterz@...radead.org>, <juri.lelli@...hat.com>,
<vincent.guittot@...aro.org>, <dietmar.eggemann@....com>,
<rostedt@...dmis.org>, <bsegall@...gle.com>, <mgorman@...e.de>,
<vschneid@...hat.com>, Yafang Shao <laoar.shao@...il.com>,
<oliver.sang@...el.com>
Subject: Re: [PATCH 1/3] sched: Fix cgroup irq accounting for
CONFIG_IRQ_TIME_ACCOUNTING
Hello,
kernel test robot noticed "WARNING:at_kernel/sched/sched.h:#cpuacct_charge" on:
commit: e5633f7cf7d093cf5bb191663054441fbc745a5a ("[PATCH 1/3] sched: Fix cgroup irq accounting for CONFIG_IRQ_TIME_ACCOUNTING")
url: https://github.com/intel-lab-lkp/linux/commits/Yafang-Shao/sched-Fix-cgroup-irq-accounting-for-CONFIG_IRQ_TIME_ACCOUNTING/20240923-170321
base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git bc9057da1a220ff2cb6c8885fd5352558aceba2c
patch link: https://lore.kernel.org/all/20240923090028.16368-2-laoar.shao@gmail.com/
patch subject: [PATCH 1/3] sched: Fix cgroup irq accounting for CONFIG_IRQ_TIME_ACCOUNTING
in testcase: boot
compiler: clang-18
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+-------------------------------------------------+------------+------------+
| | bc9057da1a | e5633f7cf7 |
+-------------------------------------------------+------------+------------+
| boot_successes | 12 | 0 |
| boot_failures | 0 | 12 |
| RIP:cpuacct_charge | 0 | 12 |
| WARNING:at_kernel/sched/sched.h:#cpuacct_charge | 0 | 12 |
| RIP:console_flush_all | 0 | 12 |
| RIP:ftrace_likely_update | 0 | 12 |
| RIP:desc_read | 0 | 12 |
| RIP:handle_softirqs | 0 | 12 |
| RIP:kasan_check_range | 0 | 12 |
| RIP:_prb_read_valid | 0 | 12 |
+-------------------------------------------------+------------+------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202409261230.c7f0e4eb-lkp@intel.com
[ 6.485339][ C0] ------------[ cut here ]------------
[ 6.485374][ C0] WARNING: CPU: 0 PID: 0 at kernel/sched/sched.h:1414 cpuacct_charge (kernel/sched/sched.h:1414)
[ 6.485389][ C0] Modules linked in:
[ 6.485398][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper Tainted: G T 6.11.0-rc1-00070-ge5633f7cf7d0 #1
[ 6.485406][ C0] Tainted: [T]=RANDSTRUCT
[ 6.485408][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 6.485412][ C0] RIP: 0010:cpuacct_charge (kernel/sched/sched.h:1414)
[ 6.485419][ C0] Code: ff ff e8 26 8e 4d 02 85 c0 0f 94 c0 eb 02 31 c0 0f b6 e8 48 c7 c7 30 88 c2 85 31 d2 31 c9 89 ee e8 38 23 21 00 40 84 ed 74 02 <0f> 0b 48 c7 c7 60 88 c2 85 89 ee 31 d2 31 c9 e8 1f 23 21 00 4d 8d
All code
========
0: ff (bad)
1: ff (bad)
2: e8 26 8e 4d 02 call 0x24d8e2d
7: 85 c0 test %eax,%eax
9: 0f 94 c0 sete %al
c: eb 02 jmp 0x10
e: 31 c0 xor %eax,%eax
10: 0f b6 e8 movzbl %al,%ebp
13: 48 c7 c7 30 88 c2 85 mov $0xffffffff85c28830,%rdi
1a: 31 d2 xor %edx,%edx
1c: 31 c9 xor %ecx,%ecx
1e: 89 ee mov %ebp,%esi
20: e8 38 23 21 00 call 0x21235d
25: 40 84 ed test %bpl,%bpl
28: 74 02 je 0x2c
2a:* 0f 0b ud2 <-- trapping instruction
2c: 48 c7 c7 60 88 c2 85 mov $0xffffffff85c28860,%rdi
33: 89 ee mov %ebp,%esi
35: 31 d2 xor %edx,%edx
37: 31 c9 xor %ecx,%ecx
39: e8 1f 23 21 00 call 0x21235d
3e: 4d rex.WRB
3f: 8d .byte 0x8d
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 48 c7 c7 60 88 c2 85 mov $0xffffffff85c28860,%rdi
9: 89 ee mov %ebp,%esi
b: 31 d2 xor %edx,%edx
d: 31 c9 xor %ecx,%ecx
f: e8 1f 23 21 00 call 0x212333
14: 4d rex.WRB
15: 8d .byte 0x8d
[ 6.485424][ C0] RSP: 0000:ffffc90000007f68 EFLAGS: 00010002
[ 6.485431][ C0] RAX: 0000000000000000 RBX: 0000000000007ab8 RCX: 0000000000000000
[ 6.485435][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 6.485439][ C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
[ 6.485442][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
[ 6.485446][ C0] R13: dffffc0000000000 R14: ffffffff84c8c080 R15: ffffffff84d62f90
[ 6.485451][ C0] FS: 0000000000000000(0000) GS:ffffffff84cdd000(0000) knlGS:0000000000000000
[ 6.485456][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.485459][ C0] CR2: ffff88843ffff000 CR3: 0000000004cb9000 CR4: 00000000000000b0
[ 6.485467][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 6.485470][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 6.485475][ C0] Call Trace:
[ 6.485478][ C0] <IRQ>
[ 6.485483][ C0] ? __warn (kernel/panic.c:240 kernel/panic.c:735)
[ 6.485490][ C0] ? cpuacct_charge (kernel/sched/sched.h:1414)
[ 6.485496][ C0] ? cpuacct_charge (kernel/sched/sched.h:1414)
[ 6.485503][ C0] ? report_bug (lib/bug.c:?)
[ 6.485529][ C0] ? handle_bug (arch/x86/kernel/traps.c:239)
[ 6.485534][ C0] ? exc_invalid_op (arch/x86/kernel/traps.c:260)
[ 6.485540][ C0] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)
[ 6.485555][ C0] ? cpuacct_charge (kernel/sched/sched.h:1414)
[ 6.485562][ C0] ? cpuacct_charge (kernel/sched/sched.h:1414)
[ 6.485569][ C0] irqtime_account_delta (include/linux/cgroup.h:420)
[ 6.485579][ C0] __irq_exit_rcu (arch/x86/include/asm/preempt.h:84 kernel/softirq.c:635)
[ 6.485586][ C0] irq_exit_rcu (kernel/softirq.c:651)
[ 6.485591][ C0] common_interrupt (arch/x86/kernel/irq.c:278)
[ 6.485597][ C0] </IRQ>
[ 6.485600][ C0] <TASK>
[ 6.485605][ C0] asm_common_interrupt (arch/x86/include/asm/idtentry.h:693)
[ 6.485610][ C0] RIP: 0010:console_flush_all (kernel/printk/printk.c:3055)
[ 6.485619][ C0] Code: 1d 00 4d 85 f6 74 05 e8 7e 94 49 02 44 0f b6 74 24 07 f7 c3 00 02 00 00 48 bb 00 00 00 00 00 fc ff df 74 01 fb 48 8b 44 24 38 <0f> b6 04 18 84 c0 0f 85 ec 01 00 00 41 80 7d 00 00 4c 8b 7c 24 50
All code
========
0: 1d 00 4d 85 f6 sbb $0xf6854d00,%eax
5: 74 05 je 0xc
7: e8 7e 94 49 02 call 0x249948a
c: 44 0f b6 74 24 07 movzbl 0x7(%rsp),%r14d
12: f7 c3 00 02 00 00 test $0x200,%ebx
18: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx
1f: fc ff df
22: 74 01 je 0x25
24: fb sti
25: 48 8b 44 24 38 mov 0x38(%rsp),%rax
2a:* 0f b6 04 18 movzbl (%rax,%rbx,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 ec 01 00 00 jne 0x222
36: 41 80 7d 00 00 cmpb $0x0,0x0(%r13)
3b: 4c 8b 7c 24 50 mov 0x50(%rsp),%r15
Code starting with the faulting instruction
===========================================
0: 0f b6 04 18 movzbl (%rax,%rbx,1),%eax
4: 84 c0 test %al,%al
6: 0f 85 ec 01 00 00 jne 0x1f8
c: 41 80 7d 00 00 cmpb $0x0,0x0(%r13)
11: 4c 8b 7c 24 50 mov 0x50(%rsp),%r15
[ 6.485623][ C0] RSP: 0000:ffffffff84c07c68 EFLAGS: 00000206
[ 6.485630][ C0] RAX: 1ffffffff0980fa8 RBX: dffffc0000000000 RCX: 0000000000000000
[ 6.485633][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 6.485637][ C0] RBP: ffffffff85620b00 R08: 0000000000000000 R09: 0000000000000000
[ 6.485640][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000016
[ 6.485644][ C0] R13: ffffffff84c07d47 R14: 0000000000000001 R15: 00000000ffffffff
[ 6.485660][ C0] ? console_flush_all (arch/x86/include/asm/irqflags.h:142)
[ 6.485670][ C0] ? console_flush_all (include/linux/rcupdate.h:331 include/linux/srcu.h:267 kernel/printk/printk.c:286 kernel/printk/printk.c:3041)
[ 6.485686][ C0] console_unlock (kernel/printk/printk.c:3119)
[ 6.485697][ C0] vprintk_emit (kernel/printk/printk.c:?)
[ 6.485708][ C0] _printk (kernel/printk/printk.c:2376)
[ 6.485724][ C0] __clocksource_register_scale (kernel/time/clocksource.c:1224)
[ 6.485739][ C0] tsc_init (arch/x86/kernel/tsc.c:1566)
[ 6.485750][ C0] x86_late_time_init (arch/x86/include/asm/cpufeature.h:178 arch/x86/kernel/time.c:85)
[ 6.485756][ C0] start_kernel (init/main.c:1066)
[ 6.485765][ C0] x86_64_start_reservations (arch/x86/kernel/ebda.c:57)
[ 6.485771][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:437)
[ 6.485778][ C0] common_startup_64 (arch/x86/kernel/head_64.S:421)
[ 6.485795][ C0] </TASK>
[ 6.485798][ C0] irq event stamp: 2166
[ 6.485801][ C0] hardirqs last enabled at (2165): console_flush_all (arch/x86/include/asm/irqflags.h:19)
[ 6.485807][ C0] hardirqs last disabled at (2166): common_interrupt (arch/x86/include/asm/ptrace.h:214 arch/x86/kernel/irq.c:278)
[ 6.485813][ C0] softirqs last enabled at (1370): handle_softirqs (arch/x86/include/asm/preempt.h:26 kernel/softirq.c:401 kernel/softirq.c:582)
[ 6.485818][ C0] softirqs last disabled at (1359): __irq_exit_rcu (include/linux/sched.h:2183 kernel/softirq.c:620 kernel/softirq.c:639)
[ 6.485822][ C0] ---[ end trace 0000000000000000 ]---
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240926/202409261230.c7f0e4eb-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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