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[ 7.883180][ C1] Oops: invalid opcode: 0000 [#1] SMP PTI [ 7.884704][ C1] CPU: 1 UID: 0 PID: 29 Comm: kworker/u8:1 Not tainted 7.0.0-rc3-00020-g02bf38db37c4 #1 PREEMPTLAZY [ 7.887379][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 7.889736][ C1] Workqueue: events_unbound fsnotify_mark_destroy_workfn [ 7.891397][ C1] RIP: 0010:irq_work_run_list (kernel/irq_work.c:245 (discriminator 1)) [ 7.892706][ C1] Code: f0 0f b1 53 08 48 8b 05 9d 71 f5 01 f6 c4 02 75 bc 48 8d 7b 18 e8 cf 7a e1 ff 4d 85 ed 75 b3 5b 5d 41 5c 41 5d e9 8f b7 e0 00 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 66 66 2e 0f 1f 84 00 All code ======== 0: f0 0f b1 53 08 lock cmpxchg %edx,0x8(%rbx) 5: 48 8b 05 9d 71 f5 01 mov 0x1f5719d(%rip),%rax # 0x1f571a9 c: f6 c4 02 test $0x2,%ah f: 75 bc jne 0xffffffffffffffcd 11: 48 8d 7b 18 lea 0x18(%rbx),%rdi 15: e8 cf 7a e1 ff call 0xffffffffffe17ae9 1a: 4d 85 ed test %r13,%r13 1d: 75 b3 jne 0xffffffffffffffd2 1f: 5b pop %rbx 20: 5d pop %rbp 21: 41 5c pop %r12 23: 41 5d pop %r13 25: e9 8f b7 e0 00 jmp 0xe0b7b9 2a:* 0f 0b ud2 <-- trapping instruction 2c: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 33: 00 00 00 00 37: 66 90 xchg %ax,%ax 39: 66 data16 3a: 66 data16 3b: 2e cs 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax) Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 00 d: 66 90 xchg %ax,%ax f: 66 data16 10: 66 data16 11: 2e cs 12: 0f .byte 0xf 13: 1f (bad) 14: 84 00 test %al,(%rax) [ 7.896993][ C1] RSP: 0018:ffffcf20000f0fc0 EFLAGS: 00010206 [ 7.898320][ C1] RAX: ffff8b7e91a34000 RBX: ffffcf20000ffca8 RCX: 0000000000000001 [ 7.900113][ C1] RDX: 0000000000000020 RSI: 0000000000000002 RDI: ffff8b7e1fd2ad00 [ 7.901905][ C1] RBP: 0000000000000000 R08: 0000000000000400 R09: 0000000000000002 [ 7.903620][ C1] R10: ffff8b7e1fd31d80 R11: ffff8b7701401ad0 R12: 0000000000000000 [ 7.905254][ C1] R13: 0000000000000200 R14: 0000000000000000 R15: 0000000000000000 [ 7.906941][ C1] FS: 0000000000000000(0000) GS:ffff8b7e91a34000(0000) knlGS:0000000000000000 [ 7.908747][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.910001][ C1] CR2: 00007fe73c0c9170 CR3: 0000000100bb2000 CR4: 00000000000406f0 [ 7.911582][ C1] Call Trace: [ 7.913403][ C1] [ 7.914087][ C1] __sysvec_irq_work (arch/x86/include/asm/jump_label.h:37 arch/x86/include/asm/trace/irq_vectors.h:63 arch/x86/kernel/irq_work.c:23) [ 7.915049][ C1] sysvec_irq_work (arch/x86/kernel/irq_work.c:17 (discriminator 35) arch/x86/kernel/irq_work.c:17 (discriminator 35)) [ 7.915965][ C1] [ 7.916600][ C1] [ 7.917214][ C1] asm_sysvec_irq_work (arch/x86/include/asm/idtentry.h:733) [ 7.918173][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (include/linux/spinlock_api_smp.h:179 (discriminator 2) kernel/locking/spinlock.c:194 (discriminator 2)) [ 7.919364][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 c6 07 00 0f 1f 00 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 41 c5 b9 01 <74> 05 c3 cc cc cc cc e8 d5 78 f4 fe c3 cc cc cc cc 90 90 90 90 90 All code ======== 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: f3 0f 1e fa endbr64 f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 14: c6 07 00 movb $0x0,(%rdi) 17: 0f 1f 00 nopl (%rax) 1a: f7 c6 00 02 00 00 test $0x200,%esi 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d 41 c5 b9 01 decl %gs:0x1b9c541(%rip) # 0x1b9c56b 2a:* 74 05 je 0x31 <-- trapping instruction 2c: c3 ret 2d: cc int3 2e: cc int3 2f: cc int3 30: cc int3 31: e8 d5 78 f4 fe call 0xfffffffffef4790b 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 74 05 je 0x7 2: c3 ret 3: cc int3 4: cc int3 5: cc int3 6: cc int3 7: e8 d5 78 f4 fe call 0xfffffffffef478e1 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20260323/202603230706.d0d75fea-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki