Extracting prog: 2m10.516045654s Minimizing prog: 13m6.05287183s Simplifying prog options: 5m16.872408204s Extracting C: 2m38.426048336s Simplifying C: 0s 1 programs, timeouts [15s 1m40s 6m0s] extracting reproducer from 1 programs single: executing 1 programs separately with timeout 15s testing program (duration=15s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_RUN detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = dup(r1) r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x2, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_RUN(r3, 0xae80, 0x0) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_RUN detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = dup(r1) r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x2, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_RUN(r3, 0xae80, 0x0) program crashed: kernel BUG in __jump_label_patch single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_USER_MEMORY_REGION detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = dup(r1) ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x2, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) program crashed: kernel BUG in __jump_label_patch testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup-ioctl$KVM_CREATE_VCPU detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = dup(r1) ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0) program crashed: kernel BUG in __jump_label_patch testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) dup(r1) program crashed: kernel BUG in __jump_label_patch testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) program did not crash testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-dup detailed listing: executing program 0: openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) dup(0xffffffffffffffff) program did not crash testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$KVM_CREATE_VM-dup detailed listing: executing program 0: r0 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) dup(r0) program did not crash testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) dup(r1) program did not crash extracting C reproducer testing compiled C program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup program did not crash simplifying guilty program options testing program (duration=2m30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) dup(r1) program did not crash testing program (duration=2m30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$kvm-ioctl$KVM_CREATE_VM-dup detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) dup(r1) program did not crash reproducing took 23m11.867393566s repro crashed as (corrupted=false): jump_label: Fatal kernel bug, unexpected op at preempt_notifier_register+0xd/0xf0 [ffffffff81595ced] (eb 12 90 48 c7 != 66 90 0f 1f 00)) size:2 type:1 ------------[ cut here ]------------ kernel BUG at arch/x86/kernel/jump_label.c:73! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5513 Comm: syz.1.53 Not tainted 6.10.0-syzkaller-12381-gc33ffdb70cc6 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__jump_label_patch+0x378/0x400 arch/x86/kernel/jump_label.c:73 Code: 48 c7 c3 60 10 ee 92 e8 c6 8f 59 00 45 89 e1 49 89 d8 4c 89 f1 41 55 4c 89 f2 4c 89 f6 48 c7 c7 a0 38 26 8b e8 79 ec 39 00 90 <0f> 0b e8 a1 8f 59 00 90 0f 0b e8 99 8f 59 00 90 0f 0b 48 c7 c7 b0 RSP: 0018:ffffc90004297c38 EFLAGS: 00010286 RAX: 0000000000000096 RBX: ffffffff8b266f21 RCX: ffffffff816af529 RDX: 0000000000000000 RSI: ffffffff816b8906 RDI: 0000000000000005 RBP: ffffc90004297c80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000001 R14: ffffffff81595ced R15: 0000000000000085 FS: 000055557efab500(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556b771808 CR3: 000000001e82c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_jump_label_transform_queue+0x7e/0x120 arch/x86/kernel/jump_label.c:137 __jump_label_update+0x125/0x420 kernel/jump_label.c:493 jump_label_update+0x1d7/0x400 kernel/jump_label.c:900 __static_key_slow_dec_cpuslocked.part.0+0x4e/0x90 kernel/jump_label.c:293 __static_key_slow_dec_cpuslocked kernel/jump_label.c:288 [inline] __static_key_slow_dec kernel/jump_label.c:301 [inline] static_key_slow_dec+0x7c/0xc0 kernel/jump_label.c:316 kvm_destroy_vm virt/kvm/kvm_main.c:1362 [inline] kvm_put_kvm+0x8f8/0xb80 virt/kvm/kvm_main.c:1386 kvm_vm_release+0x42/0x60 virt/kvm/kvm_main.c:1409 __fput+0x408/0xbb0 fs/file_table.c:422 task_work_run+0x14e/0x250 kernel/task_work.c:222 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe248975f19 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcd1a3c478 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 0000000000014b56 RCX: 00007fe248975f19 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: ffffffffffffffff R08: 0000000000000001 R09: 00000003d1a3c79f R10: 00007fe248800000 R11: 0000000000000246 R12: 00007fe248b05f6c R13: 0000000000000032 R14: 00007fe248b07a60 R15: 00007fe248b05f60 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__jump_label_patch+0x378/0x400 arch/x86/kernel/jump_label.c:73 Code: 48 c7 c3 60 10 ee 92 e8 c6 8f 59 00 45 89 e1 49 89 d8 4c 89 f1 41 55 4c 89 f2 4c 89 f6 48 c7 c7 a0 38 26 8b e8 79 ec 39 00 90 <0f> 0b e8 a1 8f 59 00 90 0f 0b e8 99 8f 59 00 90 0f 0b 48 c7 c7 b0 RSP: 0018:ffffc90004297c38 EFLAGS: 00010286 RAX: 0000000000000096 RBX: ffffffff8b266f21 RCX: ffffffff816af529 RDX: 0000000000000000 RSI: ffffffff816b8906 RDI: 0000000000000005 RBP: ffffc90004297c80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000001 R14: ffffffff81595ced R15: 0000000000000085 FS: 000055557efab500(0000) GS:ffff88806b100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fe5ffff CR3: 000000001e82c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 final repro crashed as (corrupted=false): jump_label: Fatal kernel bug, unexpected op at preempt_notifier_register+0xd/0xf0 [ffffffff81595ced] (eb 12 90 48 c7 != 66 90 0f 1f 00)) size:2 type:1 ------------[ cut here ]------------ kernel BUG at arch/x86/kernel/jump_label.c:73! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5513 Comm: syz.1.53 Not tainted 6.10.0-syzkaller-12381-gc33ffdb70cc6 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__jump_label_patch+0x378/0x400 arch/x86/kernel/jump_label.c:73 Code: 48 c7 c3 60 10 ee 92 e8 c6 8f 59 00 45 89 e1 49 89 d8 4c 89 f1 41 55 4c 89 f2 4c 89 f6 48 c7 c7 a0 38 26 8b e8 79 ec 39 00 90 <0f> 0b e8 a1 8f 59 00 90 0f 0b e8 99 8f 59 00 90 0f 0b 48 c7 c7 b0 RSP: 0018:ffffc90004297c38 EFLAGS: 00010286 RAX: 0000000000000096 RBX: ffffffff8b266f21 RCX: ffffffff816af529 RDX: 0000000000000000 RSI: ffffffff816b8906 RDI: 0000000000000005 RBP: ffffc90004297c80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000001 R14: ffffffff81595ced R15: 0000000000000085 FS: 000055557efab500(0000) GS:ffff88806b000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556b771808 CR3: 000000001e82c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_jump_label_transform_queue+0x7e/0x120 arch/x86/kernel/jump_label.c:137 __jump_label_update+0x125/0x420 kernel/jump_label.c:493 jump_label_update+0x1d7/0x400 kernel/jump_label.c:900 __static_key_slow_dec_cpuslocked.part.0+0x4e/0x90 kernel/jump_label.c:293 __static_key_slow_dec_cpuslocked kernel/jump_label.c:288 [inline] __static_key_slow_dec kernel/jump_label.c:301 [inline] static_key_slow_dec+0x7c/0xc0 kernel/jump_label.c:316 kvm_destroy_vm virt/kvm/kvm_main.c:1362 [inline] kvm_put_kvm+0x8f8/0xb80 virt/kvm/kvm_main.c:1386 kvm_vm_release+0x42/0x60 virt/kvm/kvm_main.c:1409 __fput+0x408/0xbb0 fs/file_table.c:422 task_work_run+0x14e/0x250 kernel/task_work.c:222 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe248975f19 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcd1a3c478 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 0000000000014b56 RCX: 00007fe248975f19 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: ffffffffffffffff R08: 0000000000000001 R09: 00000003d1a3c79f R10: 00007fe248800000 R11: 0000000000000246 R12: 00007fe248b05f6c R13: 0000000000000032 R14: 00007fe248b07a60 R15: 00007fe248b05f60 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__jump_label_patch+0x378/0x400 arch/x86/kernel/jump_label.c:73 Code: 48 c7 c3 60 10 ee 92 e8 c6 8f 59 00 45 89 e1 49 89 d8 4c 89 f1 41 55 4c 89 f2 4c 89 f6 48 c7 c7 a0 38 26 8b e8 79 ec 39 00 90 <0f> 0b e8 a1 8f 59 00 90 0f 0b e8 99 8f 59 00 90 0f 0b 48 c7 c7 b0 RSP: 0018:ffffc90004297c38 EFLAGS: 00010286 RAX: 0000000000000096 RBX: ffffffff8b266f21 RCX: ffffffff816af529 RDX: 0000000000000000 RSI: ffffffff816b8906 RDI: 0000000000000005 RBP: ffffc90004297c80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000002 R13: 0000000000000001 R14: ffffffff81595ced R15: 0000000000000085 FS: 000055557efab500(0000) GS:ffff88806b100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fe5ffff CR3: 000000001e82c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400