perf_try_init_event+0x140/0x9f0 perf_event_alloc.part.0+0x118e/0x45f0 __do_sys_perf_event_open+0x719/0x2c20 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f Oops: general protection fault, probably for non-canonical address 0xdffffc0008d181ce: 0000 [#1] SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x00000000468c0e70-0x00000000468c0e77] CPU: 0 UID: 0 PID: 97 Comm: systemd-journal Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0000:ffff888015877640 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888015a53700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880158778b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fe909229900(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe90865fa50 CR3: 000000000a1a9000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_block_buffer+0x2f8/0x4b0 mark_buffer_dirty+0x1f7/0x3a0 block_commit_write+0x11d/0x270 block_page_mkwrite+0x3bb/0x470 ext4_page_mkwrite+0x9cd/0x1710 do_page_mkwrite+0x17a/0x370 do_wp_page+0xff4/0x3430 __handle_mm_fault+0xde1/0x3260 handle_mm_fault+0x2c3/0x9b0 do_user_addr_fault+0x4fa/0xeb0 exc_page_fault+0xb0/0x180 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x7fe909dadace Code: 40 38 00 00 00 00 4c 89 e8 48 f7 f1 48 8b 85 d8 00 00 00 48 c1 e2 04 48 01 d0 49 89 d5 48 8b 50 08 48 85 d2 0f 85 32 03 00 00 <4c> 89 00 48 8b 85 d8 00 00 00 4e 89 44 28 08 48 8b 85 d0 00 00 00 RSP: 002b:00007ffe397686d0 EFLAGS: 00010246 RAX: 00007fe90865fa50 RBX: 0000556b237d4630 RCX: 000000000000acf8 RDX: 0000000000000000 RSI: 0000556b237d4630 RDI: 00007fe90876c640 RBP: 0000556b237af190 R08: 000000000014e600 R09: 000000000014e600 R10: 0000000000000002 R11: 00000000000441ba R12: 0000000000000025 R13: 0000000000040460 R14: 0000000000000000 R15: 00007ffe397686f0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0000:ffff888015877640 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888015a53700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880158778b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fe909229900(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe90865fa50 CR3: 000000000a1a9000 CR4: 0000000000350ef0 note: systemd-journal[97] exited with preempt_count 1 Oops: general protection fault, probably for non-canonical address 0xdffffc0008d181ce: 0000 [#2] SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x00000000468c0e70-0x00000000468c0e77] CPU: 0 UID: 0 PID: 3996 Comm: syz-executor.3 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0000:ffff8880470d7740 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888045ffd280 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880470d79b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 0000555566b71400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d424000 CR3: 000000000e128000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_block_buffer+0x2f8/0x4b0 mark_buffer_dirty+0x1f7/0x3a0 block_commit_write+0x11d/0x270 block_page_mkwrite+0x3bb/0x470 ext4_page_mkwrite+0x9cd/0x1710 do_page_mkwrite+0x17a/0x370 __handle_mm_fault+0x10cc/0x3260 handle_mm_fault+0x2c3/0x9b0 do_user_addr_fault+0x4fa/0xeb0 exc_page_fault+0xb0/0x180 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x7f5adaa78673 Code: 5d c3 0f 1f 44 00 00 48 8b 0d 59 ed 0a 01 48 8b 05 4a ed 0a 01 4c 8d 81 00 00 00 01 48 39 c8 72 13 4c 39 c0 73 0e 48 8d 50 04 <89> 38 48 89 15 2c ed 0a 01 c3 52 48 8d 35 77 b7 0b 00 48 89 c2 48 RSP: 002b:00007fff30b38808 EFLAGS: 00010287 RAX: 0000001b2d424000 RBX: 00007f5ada852008 RCX: 0000001b2d420000 RDX: 0000001b2d424004 RSI: ffffffff81364ebf RDI: 00000000ddc9302b RBP: 0000000000000001 R08: 0000001b2e420000 R09: 0000001b2d423f58 R10: 000000000000102b R11: 00000000ddc9302f R12: 00000000000000b8 R13: 00007f5adabe2000 R14: ffffffff81364ebf R15: 00007f5adabedff0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0000:ffff888015877640 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888015a53700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880158778b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 0000555566b71400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d424000 CR3: 000000000e128000 CR4: 0000000000350ef0 note: syz-executor.3[3996] exited with preempt_count 1 Oops: general protection fault, probably for non-canonical address 0xdffffc0008d181ce: 0000 [#3] SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x00000000468c0e70-0x00000000468c0e77] CPU: 0 UID: 0 PID: 3997 Comm: syz-executor.0 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff888047a371c0 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: ffffc90002a0a000 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff888047a37430 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 085a479054bec2ea R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007ff3da074700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d424000 CR3: 0000000045c86000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_block_buffer+0x2f8/0x4b0 mark_buffer_dirty+0x1f7/0x3a0 block_commit_write+0x11d/0x270 block_write_end+0x78/0x120 ext4_da_write_end+0x196/0xe70 generic_perform_write+0x223/0x810 ext4_buffered_write_iter+0x11a/0x430 ext4_file_write_iter+0xff6/0x1990 iter_file_splice_write+0xa3b/0x11f0 direct_splice_actor+0x192/0x7b0 splice_direct_to_actor+0x347/0x9d0 do_splice_direct+0x179/0x250 do_sendfile+0xa8e/0xdc0 __x64_sys_sendfile64+0x1d3/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff3dcafeb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff3da074188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007ff3dcc11f60 RCX: 00007ff3dcafeb19 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007ff3dcb58f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5a6f59cf R14: 00007ff3da074300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 kmemleak: Automatic memory scanning thread ended RSP: 0000:ffff888015877640 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888015a53700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880158778b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007ff3da074700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d424000 CR3: 0000000045c86000 CR4: 0000000000350ef0 note: syz-executor.0[3997] exited with preempt_count 1 Oops: general protection fault, probably for non-canonical address 0xdffffc0008d181ce: 0000 [#4] SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x00000000468c0e70-0x00000000468c0e77] CPU: 0 UID: 0 PID: 3995 Comm: syz-executor.0 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff8880479bf680 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888016a50000 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880479bf8f0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 1ffff1100d9c6f7b R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 000055556d516400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cc29000 CR3: 0000000045c86000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_block_buffer+0x2f8/0x4b0 mark_buffer_dirty+0x1f7/0x3a0 __block_write_begin_int+0xa1f/0x1570 block_page_mkwrite+0x394/0x470 ext4_page_mkwrite+0x9cd/0x1710 do_page_mkwrite+0x17a/0x370 __handle_mm_fault+0x10cc/0x3260 handle_mm_fault+0x2c3/0x9b0 do_user_addr_fault+0x4fa/0xeb0 exc_page_fault+0xb0/0x180 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x7ff3dcaa9d04 Code: 00 00 48 8d 55 04 c7 45 00 00 00 00 00 48 89 15 ba 16 0a 01 49 39 d5 0f 87 9a 02 00 00 49 39 d0 0f 86 91 02 00 00 4c 8d 4d 08 45 04 00 00 00 00 4c 89 0d 96 16 0a 01 4d 39 c1 0f 83 a9 02 00 RSP: 002b:00007ffd5a6f5a00 EFLAGS: 00010206 RAX: 0000001b2cc28ff8 RBX: 00007ff3dcc11f60 RCX: 0000001b2cc20000 RDX: 0000001b2cc29000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000001b2cc28ffc R08: 0000001b2dc20000 R09: 0000001b2cc29004 R10: 00007ff3dcbee010 R11: 00000000000446b4 R12: 00007ff3dcc11f60 R13: 0000001b2cc20000 R14: 00007ff3dcc11f60 R15: 000000000002435f Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0000:ffff888015877640 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888015a53700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880158778b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 000055556d516400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cc29000 CR3: 0000000045c86000 CR4: 0000000000350ef0 note: syz-executor.0[3995] exited with preempt_count 1 Oops: general protection fault, probably for non-canonical address 0xdffffc0008d181ce: 0000 [#5] SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x00000000468c0e70-0x00000000468c0e77] CPU: 0 UID: 0 PID: 176 Comm: rs:main Q:Reg Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff8880171175c0 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff8880156a3700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff888017117830 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fc6e4fcd700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cc29000 CR3: 000000000e66b000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_block_buffer+0x2f8/0x4b0 mark_buffer_dirty+0x1f7/0x3a0 block_commit_write+0x11d/0x270 block_write_end+0x78/0x120 ext4_da_write_end+0x196/0xe70 generic_perform_write+0x223/0x810 ext4_buffered_write_iter+0x11a/0x430 ext4_file_write_iter+0x9df/0x1990 vfs_write+0xbe9/0x1150 ksys_write+0x121/0x240 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc6e5e10fef Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 5c fd ff ff 48 RSP: 002b:00007fc6e4fcc830 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007fc6e5e10fef RDX: 0000000000001000 RSI: 00007fc6dc017180 RDI: 0000000000000009 RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fc6dc017180 R13: 0000000000000000 R14: 0000000000000025 R15: 00007fc6dc016ec0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0000:ffff888015877640 EFLAGS: 00010212 RAX: 0000000008d181ce RBX: 00000000468c0c80 RCX: 0000000000000002 RDX: ffff888015a53700 RSI: ffffffff818995b7 RDI: 00000000468c0e70 RBP: ffff8880158778b0 R08: ffff88806ce31340 R09: ffffe8ffffc16230 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fc6e4fcd700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cc29000 CR3: 000000000e66b000 CR4: 0000000000350ef0 note: rs:main Q:Reg[176] exited with preempt_count 1 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: df 48 89 fisttps -0x77(%rax) 3: 85 a8 fd ff ff 48 test %ebp,0x48fffffd(%rax) 9: c1 e8 03 shr $0x3,%eax c: 4c 01 e0 add %r12,%rax f: 48 89 85 c8 fd ff ff mov %rax,-0x238(%rbp) 16: e8 c9 51 ea ff callq 0xffea51e4 1b: 48 8d bb f0 01 00 00 lea 0x1f0(%rbx),%rdi 22: 48 89 f8 mov %rdi,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e c5 0b 00 00 jle 0xbff 3a: 44 rex.R 3b: 8b .byte 0x8b 3c: ab stos %eax,%es:(%rdi) 3d: f0 lock 3e: 01 .byte 0x1