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X299 UD4 Pro/X299 UD4 Pro-CF, BIOS F8a 04/27/2021 [ 0.055225][ T0] RIP: 0010:do_clear_cpu_cap (arch/x86/kernel/cpu/cpuid-deps.c:118 (discriminator 1)) [ 0.055225][ T0] Code: 89 c1 83 e0 07 48 c1 e9 03 83 c0 03 0f b6 14 11 38 d0 7c 08 84 d2 0f 85 b7 00 00 00 8b 15 f4 f7 7c 04 85 d2 0f 84 f2 fd ff ff <0f> 0b e9 eb fd ff ff 48 c7 c7 c0 eb 89 85 e8 41 fd ff ff 49 8d bf All code ======== 0: 89 c1 mov %eax,%ecx 2: 83 e0 07 and $0x7,%eax 5: 48 c1 e9 03 shr $0x3,%rcx 9: 83 c0 03 add $0x3,%eax c: 0f b6 14 11 movzbl (%rcx,%rdx,1),%edx 10: 38 d0 cmp %dl,%al 12: 7c 08 jl 0x1c 14: 84 d2 test %dl,%dl 16: 0f 85 b7 00 00 00 jne 0xd3 1c: 8b 15 f4 f7 7c 04 mov 0x47cf7f4(%rip),%edx # 0x47cf816 22: 85 d2 test %edx,%edx 24: 0f 84 f2 fd ff ff je 0xfffffffffffffe1c 2a:* 0f 0b ud2 <-- trapping instruction 2c: e9 eb fd ff ff jmpq 0xfffffffffffffe1c 31: 48 c7 c7 c0 eb 89 85 mov $0xffffffff8589ebc0,%rdi 38: e8 41 fd ff ff callq 0xfffffffffffffd7e 3d: 49 rex.WB 3e: 8d .byte 0x8d 3f: bf .byte 0xbf Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: e9 eb fd ff ff jmpq 0xfffffffffffffdf2 7: 48 c7 c7 c0 eb 89 85 mov $0xffffffff8589ebc0,%rdi e: e8 41 fd ff ff callq 0xfffffffffffffd54 13: 49 rex.WB 14: 8d .byte 0x8d 15: bf .byte 0xbf [ 0.055225][ T0] RSP: 0000:ffffc900001f7cd0 EFLAGS: 00010002 [ 0.055225][ T0] RAX: 0000000000000003 RBX: ffff888817ca9020 RCX: 1ffffffff0b13da3 [ 0.055225][ T0] RDX: 0000000000000001 RSI: 0000000000000085 RDI: ffffc900001f7d68 [ 0.055225][ T0] RBP: ffffc900001f7d08 R08: 0000000000000000 R09: fffffbfff0962288 [ 0.055225][ T0] R10: ffffffff84b11443 R11: 0000000000000001 R12: 0000000000000085 [ 0.055225][ T0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8683dee0 [ 0.055225][ T0] FS: 0000000000000000(0000) GS:ffff888817c80000(0000) knlGS:0000000000000000 [ 0.055225][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.055225][ T0] CR2: 0000000000000000 CR3: 000000089c85a001 CR4: 00000000003706b0 [ 0.055225][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 0.055225][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 0.055225][ T0] Call Trace: [ 0.055225][ T0] [ 0.055225][ T0] ? __warn (kernel/panic.c:694) [ 0.055225][ T0] ? do_clear_cpu_cap (arch/x86/kernel/cpu/cpuid-deps.c:118 (discriminator 1)) [ 0.055225][ T0] ? report_bug (lib/bug.c:180 lib/bug.c:219) [ 0.055225][ T0] ? handle_bug (arch/x86/kernel/traps.c:239 (discriminator 1)) [ 0.055225][ T0] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) [ 0.055225][ T0] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 0.055225][ T0] ? do_clear_cpu_cap (arch/x86/kernel/cpu/cpuid-deps.c:118 (discriminator 1)) [ 0.055225][ T0] ? __pfx_do_clear_cpu_cap (arch/x86/kernel/cpu/cpuid-deps.c:109) [ 0.055225][ T0] init_ia32_feat_ctl (arch/x86/kernel/cpu/feat_ctl.c:181) [ 0.055225][ T0] init_intel (arch/x86/include/asm/msr.h:146 arch/x86/include/asm/msr.h:300 arch/x86/kernel/cpu/intel.c:583 arch/x86/kernel/cpu/intel.c:687) [ 0.055225][ T0] identify_cpu (arch/x86/kernel/cpu/common.c:1824) [ 0.055225][ T0] identify_secondary_cpu (arch/x86/kernel/cpu/common.c:1949) [ 0.055225][ T0] smp_store_cpu_info (arch/x86/kernel/smpboot.c:333) [ 0.055225][ T0] start_secondary (arch/x86/kernel/smpboot.c:197 arch/x86/kernel/smpboot.c:281) [ 0.055225][ T0] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:231) [ 0.055225][ T0] common_startup_64 (arch/x86/kernel/head_64.S:421) [ 0.055225][ T0] [ 0.055225][ T0] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240430/202404302233.f27f91b2-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki