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HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: rVv5IWPK7p0nKcvv71m8m4p7JidbZIXHunAXdOHbdNOLnEvxG1Fsxa7iiGdhAXH8MmRQMX2s4CHDybES+Uw2Yw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR11MB7453 X-OriginatorOrg: intel.com 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 | 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] [ 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] 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