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[ 42.734733][ T1345] [ 43.885512][ C78] Oops: general protection fault, maybe for address 0xffffc9000daa8f40: 0000 [#1] SMP PTI [ 43.895761][ C78] CPU: 78 UID: 0 PID: 4129 Comm: tlb_flush3_thre Tainted: G S 6.16.0-rc2-00285-g83790f0851d2 #1 VOLUNTARY [ 43.909277][ C78] Tainted: [S]=CPU_OUT_OF_SPEC [ 43.914263][ C78] Hardware name: Intel Corporation S2600BT/S2600BT, BIOS SE5C620.86B.1D.01.0147.121320181755 12/13/2018 [ 43.925590][ C78] RIP: 0010:native_flush_tlb_one_user (kbuild/src/consumer/arch/x86/include/asm/invpcid.h:16 kbuild/src/consumer/arch/x86/include/asm/invpcid.h:29 kbuild/src/consumer/arch/x86/mm/tlb.c:1623) [ 43.932049][ C78] Code: 48 8b 0d 9d d8 12 02 f7 c2 00 00 02 00 74 36 48 0f ba e1 2a 73 2f 83 c0 01 48 89 7c 24 08 80 cc 08 0f b7 c0 48 89 04 24 31 c0 <66> 0f 38 82 04 24 48 8b 44 24 18 65 48 2b 05 7f d0 b9 02 75 1e c9 All code ======== 0: 48 8b 0d 9d d8 12 02 mov 0x212d89d(%rip),%rcx # 0x212d8a4 7: f7 c2 00 00 02 00 test $0x20000,%edx d: 74 36 je 0x45 f: 48 0f ba e1 2a bt $0x2a,%rcx 14: 73 2f jae 0x45 16: 83 c0 01 add $0x1,%eax 19: 48 89 7c 24 08 mov %rdi,0x8(%rsp) 1e: 80 cc 08 or $0x8,%ah 21: 0f b7 c0 movzwl %ax,%eax 24: 48 89 04 24 mov %rax,(%rsp) 28: 31 c0 xor %eax,%eax 2a:* 66 0f 38 82 04 24 invpcid (%rsp),%rax <-- trapping instruction 30: 48 8b 44 24 18 mov 0x18(%rsp),%rax 35: 65 48 2b 05 7f d0 b9 sub %gs:0x2b9d07f(%rip),%rax # 0x2b9d0bc 3c: 02 3d: 75 1e jne 0x5d 3f: c9 leave Code starting with the faulting instruction =========================================== 0: 66 0f 38 82 04 24 invpcid (%rsp),%rax 6: 48 8b 44 24 18 mov 0x18(%rsp),%rax b: 65 48 2b 05 7f d0 b9 sub %gs:0x2b9d07f(%rip),%rax # 0x2b9d092 12: 02 13: 75 1e jne 0x33 15: c9 leave [ 43.952240][ C78] RSP: 0018:ffffc9000daa8f40 EFLAGS: 00010046 [ 43.958539][ C78] RAX: 0000000000000000 RBX: ffff8897e0e703c0 RCX: d39ffffb0002000f [ 43.966742][ C78] RDX: 00000000007726f0 RSI: 00007ffcebd0f000 RDI: 0000800000000000 [ 43.974943][ C78] RBP: ffffc9000daa8f68 R08: 0000000000000002 R09: 0000000000000000 [ 43.983138][ C78] R10: 0000000000000000 R11: ffffc9000daa8ff8 R12: 000000000000004e [ 43.991331][ C78] R13: 0000800000000000 R14: 00000000003017cf R15: 0000000000000068 [ 43.999525][ C78] FS: 00007ffe977fe6c0(0000) GS:ffff88b019250000(0000) knlGS:0000000000000000 [ 44.008671][ C78] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.015466][ C78] CR2: 00007ffd53e4d000 CR3: 0000000226b24005 CR4: 00000000007726f0 [ 44.023649][ C78] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.031823][ C78] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.039983][ C78] PKRU: 55555554 [ 44.043721][ C78] Call Trace: [ 44.047187][ C78] [ 44.050212][ C78] ? clockevents_program_event (kbuild/src/consumer/kernel/time/clockevents.c:334) [ 44.056108][ C78] flush_tlb_func (kbuild/src/consumer/arch/x86/include/asm/paravirt.h:85 kbuild/src/consumer/arch/x86/mm/tlb.c:1630 kbuild/src/consumer/arch/x86/mm/tlb.c:1251) [ 44.060961][ C78] ? __pfx_flush_tlb_func (kbuild/src/consumer/arch/x86/mm/tlb.c:1104) [ 44.066331][ C78] __flush_smp_call_function_queue (kbuild/src/consumer/kernel/smp.c:134 kbuild/src/consumer/kernel/smp.c:540) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250630/202506301054.b89ea5bb-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki