linux-kernel - [tip:sched/core] [sched/smp] 06ddd17521: BUG:using_smp_processor_id()in

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Message-ID: <202507100448.6b88d6f1-lkp@intel.com>
Date: Thu, 10 Jul 2025 10:58:11 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Ingo Molnar <mingo@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
	<x86@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Dietmar Eggemann
	<dietmar.eggemann@....com>, Juri Lelli <juri.lelli@...hat.com>, "Linus
 Torvalds" <torvalds@...ux-foundation.org>, Mel Gorman <mgorman@...e.de>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Shrikanth Hegde
	<sshegde@...ux.ibm.com>, Steven Rostedt <rostedt@...dmis.org>, "Valentin
 Schneider" <vschneid@...hat.com>, Vincent Guittot
	<vincent.guittot@...aro.org>, <aubrey.li@...ux.intel.com>,
	<yu.c.chen@...el.com>, <oliver.sang@...el.com>
Subject: [tip:sched/core] [sched/smp]  06ddd17521:
 BUG:using_smp_processor_id()in_preemptible



Hello,

kernel test robot noticed "BUG:using_smp_processor_id()in_preemptible" on:

commit: 06ddd17521bf11a3e7f59dafdf5c148f29467d2c ("sched/smp: Always define is_percpu_thread() and scheduler_ipi()")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/core

[test failed on linux-next/master 835244aba90de290b4b0b1fa92b6734f3ee7b3d9]

in testcase: boot

config: x86_64-randconfig-123-20250702
compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)


+----------------------------------------------------------+------------+------------+
|                                                          | cac5cefbad | 06ddd17521 |
+----------------------------------------------------------+------------+------------+
| boot_successes                                           | 20         | 0          |
| boot_failures                                            | 0          | 18         |
| BUG:using_smp_processor_id()in_preemptible               | 0          | 18         |
| BUG:using__this_cpu_write()in_preemptible[#]code:swapper | 0          | 18         |
| BUG:using__this_cpu_read()in_preemptible                 | 0          | 18         |
+----------------------------------------------------------+------------+------------+


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/202507100448.6b88d6f1-lkp@intel.com


[   25.232998][    T1] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 25.233645][ T1] caller is __kvm_is_vmx_supported (arch/x86/include/asm/cpuid/api.h:74 arch/x86/include/asm/cpuid/api.h:113 arch/x86/kvm/vmx/vmx.c:2789) 
[   25.234128][    T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.0-rc1-00023-g06ddd17521bf #1 PREEMPT(lazy)
[   25.234931][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[   25.235357][    T1] Call Trace:
[   25.235357][    T1]  <TASK>
[ 25.235357][ T1] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1)) 
[ 25.235357][ T1] check_preemption_disabled (arch/x86/include/asm/preempt.h:85 lib/smp_processor_id.c:53) 
[ 25.235357][ T1] __kvm_is_vmx_supported (arch/x86/include/asm/cpuid/api.h:74 arch/x86/include/asm/cpuid/api.h:113 arch/x86/kvm/vmx/vmx.c:2789) 
[ 25.235357][ T1] ? __cpuid (arch/x86/include/asm/paravirt.h:179) 
[ 25.235357][ T1] ? __sanitizer_cov_trace_pc (kernel/kcov.c:217) 
[ 25.235357][ T1] ? ftrace_likely_update (arch/x86/include/asm/smap.h:53 kernel/trace/trace_branch.c:223) 
[ 25.235357][ T1] ? __sanitizer_cov_trace_pc (kernel/kcov.c:217) 
[ 25.235357][ T1] ? ftrace_likely_update (arch/x86/include/asm/smap.h:53 kernel/trace/trace_branch.c:223) 
[ 25.235357][ T1] ? __sanitizer_cov_trace_pc (kernel/kcov.c:217) 
[ 25.235357][ T1] ? ftrace_likely_update (arch/x86/include/asm/smap.h:53 kernel/trace/trace_branch.c:223) 
[ 25.235357][ T1] vmx_init (arch/x86/kvm/vmx/vmx.c:2808 arch/x86/kvm/vmx/vmx.c:8653) 
[ 25.235357][ T1] vt_init (arch/x86/kvm/vmx/main.c:1072) 
[ 25.235357][ T1] ? pi_init_cpu (arch/x86/kvm/vmx/main.c:1067) 
[ 25.235357][ T1] do_one_initcall (init/main.c:1273) 
[ 25.235357][ T1] ? trace_initcall_level (init/main.c:1264) 
[ 25.235357][ T1] ? __sanitizer_cov_trace_pc (kernel/kcov.c:217) 
[ 25.235357][ T1] ? ftrace_likely_update (arch/x86/include/asm/smap.h:53 kernel/trace/trace_branch.c:223) 
[ 25.235357][ T1] ? __sanitizer_cov_trace_pc (kernel/kcov.c:217) 
[ 25.235357][ T1] ? ftrace_likely_update (arch/x86/include/asm/smap.h:53 kernel/trace/trace_branch.c:223) 
[ 25.235357][ T1] do_initcalls (init/main.c:1334 init/main.c:1351) 
[ 25.235357][ T1] kernel_init_freeable (init/main.c:1587) 
[ 25.235357][ T1] ? rest_init (init/main.c:1465) 
[ 25.235357][ T1] kernel_init (init/main.c:1475) 
[ 25.235357][ T1] ? rest_init (init/main.c:1465) 
[ 25.235357][ T1] ret_from_fork (arch/x86/kernel/process.c:154) 
[ 25.235357][ T1] ? rest_init (init/main.c:1465) 
[ 25.235357][ T1] ret_from_fork_asm (arch/x86/entry/entry_64.S:255) 
[   25.235357][    T1]  </TASK>


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250710/202507100448.6b88d6f1-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki