From: kernel test robot <oliver.sang@intel.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<linux-kernel@vger.kernel.org>, <x86@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Juri Lelli <juri.lelli@redhat.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Shrikanth Hegde <sshegde@linux.ibm.com>,
Steven Rostedt <rostedt@goodmis.org>,
"Valentin Schneider" <vschneid@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
<aubrey.li@linux.intel.com>, <yu.c.chen@intel.com>,
<oliver.sang@intel.com>
Subject: [tip:sched/core] [sched/smp] 06ddd17521: BUG:using_smp_processor_id()in_preemptible
Date: Thu, 10 Jul 2025 10:58:11 +0800 [thread overview]
Message-ID: <202507100448.6b88d6f1-lkp@intel.com> (raw)
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@intel.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
next reply other threads:[~2025-07-10 2:59 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-10 2:58 kernel test robot [this message]
2025-07-10 3:18 ` Chen, Yu C
2025-07-10 6:25 ` Sebastian Andrzej Siewior
2025-07-10 8:00 ` Chen, Yu C
2025-07-10 8:11 ` Sebastian Andrzej Siewior
2025-07-10 8:27 ` [PATCH] lib/smp_processor_id: Make migration check unconditional of SMP Sebastian Andrzej Siewior
2025-07-10 8:32 ` Chen, Yu C
2025-07-10 10:13 ` Peter Zijlstra
2025-07-11 12:41 ` [tip: sched/core] " tip-bot2 for Sebastian Andrzej Siewior
2025-07-10 8:29 ` [tip:sched/core] [sched/smp] 06ddd17521: BUG:using_smp_processor_id()in_preemptible Chen, Yu C
2025-07-10 10:47 ` Sebastian Andrzej Siewior
2025-07-10 11:31 ` Chen, Yu C
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