Bug#901932: linux-image-4.16.0-2-amd64: Blank screen after update kernel 4.16.16
I have the same issue. It is a problem with the propriatary nvidia
kernel module.
Loading the module works, but starting desktop manager gives a blank screen.
I got the following messages (accessed via ssh):
Jun 20 15:21:08 metropol kernel: resource sanity check: requesting [mem
0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem
0x000c0000-0x000dffff window]
Jun 20 15:21:08 metropol kernel: caller _nv001169rm+0xe3/0x1d0 [nvidia]
mapping multiple BARs
Jun 20 15:21:08 metropol kernel: nvidia-modeset: Allocated GPU:0
(GPU-1dd5344e-b699-f58e-ad7d-67c8d97cf99e) @ PCI:0000:01:00.0
Jun 20 15:21:09 metropol kernel: usercopy: Kernel memory exposure
attempt detected from SLUB object 'nvidia_stack_cache' (offset 11440,
size 3)!
Jun 20 15:21:09 metropol kernel: ------------[ cut here ]------------
Jun 20 15:21:09 metropol kernel: kernel BUG at
/build/linux-s0lf2B/linux-4.16.16/mm/usercopy.c:100!
Jun 20 15:21:09 metropol kernel: invalid opcode: 0000 [#1] SMP NOPTI
Jun 20 15:21:09 metropol kernel: Modules linked in: pci_stub vboxpci(O)
vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc snd_hda_codec_hdmi
pktcdvd fuse tda18212 cxd2841er nls_ascii nls_cp437 edac_mce_amd kvm_amd
vfat ccp rng_core snd_hda_codec_realtek snd_hda_codec_generic kvm fat
irqbypass efi_pstore crct10dif_pclmul snd_hda_intel crc32_pclmul
snd_hda_codec snd_hda_core snd_hwdep evdev ddbridge snd_pcm snd_timer
ghash_clmulni_intel serio_raw pcspkr efivars snd fam15h_power dvb_core
soundcore k10temp sg sp5100_tco nvidia_drm(PO) shpchp button
acpi_cpufreq drm_kms_helper drm nvidia_modeset(PO) nvidia(PO)
ipmi_devintf ipmi_msghandler nct6775 hwmon_vid efivarfs ip_tables
x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto ecb btrfs
crc32c_generic xor zstd_decompress zstd_compress xxhash raid6_pq
hid_generic usbhid hid
Jun 20 15:21:09 metropol kernel: sr_mod cdrom sd_mod uas usb_storage
ohci_pci crc32c_intel xhci_pci ahci aesni_intel libahci aes_x86_64
ohci_hcd crypto_simd ehci_pci xhci_hcd ehci_hcd cryptd r8169 glue_helper
libata nvme mii usbcore i2c_piix4 scsi_mod usb_common nvme_core
Jun 20 15:21:09 metropol kernel: CPU: 3 PID: 1698 Comm: Xorg Tainted: P
O 4.16.0-2-amd64 #1 Debian 4.16.16-1
Jun 20 15:21:09 metropol kernel: Hardware name: To Be Filled By O.E.M.
To Be Filled By O.E.M./970 Pro3 R2.0, BIOS P2.80 05/31/2016
Jun 20 15:21:09 metropol kernel: RIP: 0010:usercopy_abort+0x69/0x80
Jun 20 15:21:09 metropol kernel: RSP: 0018:ffffa9a0c415bb50 EFLAGS: 00010282
Jun 20 15:21:09 metropol kernel: RAX: 000000000000006f RBX:
0000000000000003 RCX: 0000000000000000
Jun 20 15:21:09 metropol kernel: RDX: 0000000000000000 RSI:
ffff9ccb7ecd6738 RDI: ffff9ccb7ecd6738
Jun 20 15:21:09 metropol kernel: RBP: 0000000000000003 R08:
00000000000003b4 R09: 0000000000000007
Jun 20 15:21:09 metropol kernel: R10: ffffffffa0077e48 R11:
ffffffffa07a8dcd R12: 0000000000000001
Jun 20 15:21:09 metropol kernel: R13: ffff9ccb3ceb2cb3 R14:
0000000000000000 R15: ffff9ccb3ceb2cf8
Jun 20 15:21:09 metropol kernel: FS: 00007f3624fb76c0(0000)
GS:ffff9ccb7ecc0000(0000) knlGS:0000000000000000
Jun 20 15:21:09 metropol kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jun 20 15:21:09 metropol kernel: CR2: 00007f361d050d40 CR3:
00000003df228000 CR4: 00000000000406e0
Jun 20 15:21:09 metropol kernel: Call Trace:
Jun 20 15:21:09 metropol kernel: __check_heap_object+0xe7/0x120
Jun 20 15:21:09 metropol kernel: __check_object_size+0x9c/0x1a0
Jun 20 15:21:09 metropol kernel: os_memcpy_to_user+0x21/0x40 [nvidia]
Jun 20 15:21:09 metropol kernel: _nv009383rm+0xbf/0xe0 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv028084rm+0x79/0x90 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv028084rm+0x55/0x90 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv013694rm+0xee/0x100 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv015342rm+0x154/0x270 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv008316rm+0x134/0x1a0 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv008295rm+0x29c/0x2b0 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv001072rm+0xe/0x20 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv007322rm+0xd8/0x100 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv001171rm+0x627/0x830 [nvidia]
Jun 20 15:21:09 metropol kernel: ? rm_ioctl+0x73/0x100 [nvidia]
Jun 20 15:21:09 metropol kernel: ? nvidia_ioctl+0xb0/0x720 [nvidia]
Jun 20 15:21:09 metropol kernel: ? nvidia_ioctl+0x573/0x720 [nvidia]
Jun 20 15:21:09 metropol kernel: ?
nvidia_frontend_unlocked_ioctl+0x3e/0x50 [nvidia]
Jun 20 15:21:09 metropol kernel: ? do_vfs_ioctl+0xa4/0x630
Jun 20 15:21:09 metropol kernel: ? handle_mm_fault+0xdc/0x210
Jun 20 15:21:09 metropol kernel: ? SyS_ioctl+0x74/0x80
Jun 20 15:21:09 metropol kernel: ? do_syscall_64+0x6c/0x130
Jun 20 15:21:09 metropol kernel: ? entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Jun 20 15:21:09 metropol kernel: Code: 0f 44 d0 53 48 c7 c0 41 de 03 a0
51 48 c7 c6 dd d3 02 a0 41 53 48 89 f9 48 0f 45 f0 4c 89 d2 48 c7 c7 28
df 03 a0 e8 f1 2e ea ff <0f> 0b 49 c7 c1 ac de 04 a0 4d 89 cb 4d 89 c8
eb a5 66 0f 1f 44
Jun 20 15:21:09 metropol kernel: RIP: usercopy_abort+0x69/0x80 RSP:
ffffa9a0c415bb50
Jun 20 15:21:09 metropol kernel: ---[ end trace 9c8d036260b5e9ef ]---
Jun 20 15:21:09 metropol kernel: BUG: unable to handle kernel paging
request at fffffffefe388f34
Jun 20 15:21:09 metropol kernel: IP: 0xfffffffefe4519cc
Jun 20 15:21:09 metropol kernel: PGD 3e880e067 P4D 3e880e067 PUD 0
Jun 20 15:21:09 metropol kernel: Oops: 0000 [#2] SMP NOPTI
Jun 20 15:21:09 metropol kernel: Modules linked in: pci_stub vboxpci(O)
vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc snd_hda_codec_hdmi
pktcdvd fuse tda18212 cxd2841er nls_ascii nls_cp437 edac_mce_amd kvm_amd
vfat ccp rng_core snd_hda_codec_realtek snd_hda_codec_generic kvm fat
irqbypass efi_pstore crct10dif_pclmul snd_hda_intel crc32_pclmul
snd_hda_codec snd_hda_core snd_hwdep evdev ddbridge snd_pcm snd_timer
ghash_clmulni_intel serio_raw pcspkr efivars snd fam15h_power dvb_core
soundcore k10temp sg sp5100_tco nvidia_drm(PO) shpchp button
acpi_cpufreq drm_kms_helper drm nvidia_modeset(PO) nvidia(PO)
ipmi_devintf ipmi_msghandler nct6775 hwmon_vid efivarfs ip_tables
x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto ecb btrfs
crc32c_generic xor zstd_decompress zstd_compress xxhash raid6_pq
hid_generic usbhid hid
Jun 20 15:21:09 metropol kernel: sr_mod cdrom sd_mod uas usb_storage
ohci_pci crc32c_intel xhci_pci ahci aesni_intel libahci aes_x86_64
ohci_hcd crypto_simd ehci_pci xhci_hcd ehci_hcd cryptd r8169 glue_helper
libata nvme mii usbcore i2c_piix4 scsi_mod usb_common nvme_core
Jun 20 15:21:09 metropol kernel: CPU: 3 PID: 1700 Comm: kworker/3:3
Tainted: P D O 4.16.0-2-amd64 #1 Debian 4.16.16-1
Jun 20 15:21:09 metropol kernel: Hardware name: To Be Filled By O.E.M.
To Be Filled By O.E.M./970 Pro3 R2.0, BIOS P2.80 05/31/2016
Jun 20 15:21:09 metropol kernel: Workqueue: events
efivar_update_sysfs_entries [efivars]
Jun 20 15:21:09 metropol kernel: RIP: 0010:0xfffffffefe4519cc
Jun 20 15:21:09 metropol kernel: RSP: 0018:ffffa9a0c218fb50 EFLAGS: 00010286
Jun 20 15:21:09 metropol kernel: RAX: fffffffefe45b9d8 RBX:
fffffffefe45b9d8 RCX: fffffffefe388f34
Jun 20 15:21:09 metropol kernel: RDX: fffffffefe45b9d8 RSI:
8000000000000000 RDI: ffff9ccb685f5c00
Jun 20 15:21:09 metropol kernel: RBP: ffffa9a0c218fe00 R08:
fffffffefe45b9d8 R09: 0000000000000001
Jun 20 15:21:09 metropol kernel: R10: ffff9ccb685f5c00 R11:
ffffa9a0c218fe00 R12: 0000000000000001
Jun 20 15:21:09 metropol kernel: R13: 0000000000000000 R14:
0000000000000000 R15: fffffffefe45b9d8
Jun 20 15:21:09 metropol kernel: FS: 0000000000000000(0000)
GS:ffff9ccb7ecc0000(0000) knlGS:0000000000000000
Jun 20 15:21:09 metropol kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jun 20 15:21:09 metropol kernel: CR2: fffffffefe4519cc CR3:
00000003e880a000 CR4: 00000000000406e0
Jun 20 15:21:09 metropol kernel: Call Trace:
Jun 20 15:21:09 metropol kernel: ? efivar_entry_find+0xbd/0x190
Jun 20 15:21:09 metropol kernel: ? efi_call+0x58/0x90
Jun 20 15:21:09 metropol kernel: ? virt_efi_get_next_variable+0x8b/0x150
Jun 20 15:21:09 metropol kernel: ? efivar_init+0x130/0x3b0
Jun 20 15:21:09 metropol kernel: ? copy_out_compat+0xd0/0xd0 [efivars]
Jun 20 15:21:09 metropol kernel: ? __switch_to_asm+0x34/0x70
Jun 20 15:21:09 metropol kernel: ? __switch_to_asm+0x40/0x70
Jun 20 15:21:09 metropol kernel: ? __switch_to_asm+0x34/0x70
Jun 20 15:21:09 metropol kernel: ? __switch_to_asm+0x40/0x70
Jun 20 15:21:09 metropol kernel: ?
efivar_update_sysfs_entries+0x24/0x60 [efivars]
Jun 20 15:21:09 metropol kernel: ?
efivar_update_sysfs_entries+0x24/0x60 [efivars]
Jun 20 15:21:09 metropol kernel: ? process_one_work+0x17b/0x360
Jun 20 15:21:09 metropol kernel: ? worker_thread+0x2e/0x390
Jun 20 15:21:09 metropol kernel: ? process_one_work+0x360/0x360
Jun 20 15:21:09 metropol kernel: ? kthread+0x113/0x130
Jun 20 15:21:09 metropol kernel: ? kthread_create_worker_on_cpu+0x70/0x70
Jun 20 15:21:09 metropol kernel: ? exit_to_usermode_loop+0x85/0xc0
Jun 20 15:21:09 metropol kernel: ? ret_from_fork+0x22/0x40
Jun 20 15:21:09 metropol kernel: Code: Bad RIP value.
Jun 20 15:21:09 metropol kernel: RIP: 0xfffffffefe4519cc RSP:
ffffa9a0c218fb50
Jun 20 15:21:09 metropol kernel: CR2: fffffffefe388f34
Jun 20 15:21:09 metropol kernel: ---[ end trace 9c8d036260b5e9f0 ]---
Jun 20 15:21:09 metropol kernel: general protection fault: 0000 [#3] SMP
NOPTI
Jun 20 15:21:09 metropol kernel: Modules linked in: pci_stub vboxpci(O)
vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc snd_hda_codec_hdmi
pktcdvd fuse tda18212 cxd2841er nls_ascii nls_cp437 edac_mce_amd kvm_amd
vfat ccp rng_core snd_hda_codec_realtek snd_hda_codec_generic kvm fat
irqbypass efi_pstore crct10dif_pclmul snd_hda_intel crc32_pclmul
snd_hda_codec snd_hda_core snd_hwdep evdev ddbridge snd_pcm snd_timer
ghash_clmulni_intel serio_raw pcspkr efivars snd fam15h_power dvb_core
soundcore k10temp sg sp5100_tco nvidia_drm(PO) shpchp button
acpi_cpufreq drm_kms_helper drm nvidia_modeset(PO) nvidia(PO)
ipmi_devintf ipmi_msghandler nct6775 hwmon_vid efivarfs ip_tables
x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto ecb btrfs
crc32c_generic xor zstd_decompress zstd_compress xxhash raid6_pq
hid_generic usbhid hid
Jun 20 15:21:09 metropol kernel: sr_mod cdrom sd_mod uas usb_storage
ohci_pci crc32c_intel xhci_pci ahci aesni_intel libahci aes_x86_64
ohci_hcd crypto_simd ehci_pci xhci_hcd ehci_hcd cryptd r8169 glue_helper
libata nvme mii usbcore i2c_piix4 scsi_mod usb_common nvme_core
Jun 20 15:21:09 metropol kernel: CPU: 2 PID: 1698 Comm: Xorg Tainted: P
D O 4.16.0-2-amd64 #1 Debian 4.16.16-1
Jun 20 15:21:09 metropol kernel: Hardware name: To Be Filled By O.E.M.
To Be Filled By O.E.M./970 Pro3 R2.0, BIOS P2.80 05/31/2016
Jun 20 15:21:09 metropol kernel: RIP: 0010:_nv007220rm+0x25/0x90 [nvidia]
Jun 20 15:21:09 metropol kernel: RSP: 0018:ffffa9a0c415bd20 EFLAGS: 00010006
Jun 20 15:21:09 metropol kernel: RAX: 48e28944ffffff36 RBX:
ffffffffc133d238 RCX: ffffa9a0c415bdb0
Jun 20 15:21:09 metropol kernel: RDX: ffffffffc06e0515 RSI:
00000000000006a2 RDI: ffffffffc133d238
Jun 20 15:21:09 metropol kernel: RBP: ffff9ccb1e74dff8 R08:
0000000000000000 R09: ffffa9a0c415bdac
Jun 20 15:21:09 metropol kernel: R10: 0000000000000000 R11:
0000000000000000 R12: 00000000000006a2
Jun 20 15:21:09 metropol kernel: R13: ffff9ccb1e733c00 R14:
ffff9ccb1ed16100 R15: ffff9ccb65ca0000
Jun 20 15:21:09 metropol kernel: FS: 00007f3624fb76c0(0000)
GS:ffff9ccb7ec80000(0000) knlGS:0000000000000000
Jun 20 15:21:09 metropol kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jun 20 15:21:09 metropol kernel: CR2: 000055d7725f59e0 CR3:
00000003e880a000 CR4: 00000000000406e0
Jun 20 15:21:09 metropol kernel: Call Trace:
Jun 20 15:21:09 metropol kernel: ? _nv025911rm+0x13/0x50 [nvidia]
Jun 20 15:21:09 metropol kernel: ? _nv035641rm+0x144/0x1e0 [nvidia]
Jun 20 15:21:09 metropol kernel: ? rm_free_unused_clients+0x4f/0xe0
[nvidia]
Jun 20 15:21:09 metropol kernel: ?
nv_check_pci_config_space+0x285/0x320 [nvidia]
Jun 20 15:21:09 metropol kernel: ? nvidia_close+0xba/0x350 [nvidia]
Jun 20 15:21:09 metropol kernel: ? nvidia_frontend_close+0x2a/0x40 [nvidia]
Jun 20 15:21:09 metropol kernel: ? __fput+0xd0/0x1e0
Jun 20 15:21:09 metropol kernel: ? task_work_run+0x8a/0xb0
Jun 20 15:21:09 metropol kernel: ? do_exit+0x2e1/0xb40
Jun 20 15:21:09 metropol kernel: ? SyS_ioctl+0x74/0x80
Jun 20 15:21:09 metropol kernel: ? rewind_stack_do_exit+0x17/0x20
Jun 20 15:21:09 metropol kernel: Code: 84 00 00 00 00 00 31 c9 48 85 ff
53 48 89 fb 74 0d 48 85 d2 74 08 48 63 47 08 48 8d 0c 10 48 8b 03 31 d2
0f 1f 00 48 85 c0 74 11 <48> 39 30 48 89 c2 76 47 48 8b 40 10 48 85 c0
75 ef 48 85 d2 48
Jun 20 15:21:09 metropol kernel: RIP: _nv007220rm+0x25/0x90 [nvidia]
RSP: ffffa9a0c415bd20
Jun 20 15:21:09 metropol kernel: ---[ end trace 9c8d036260b5e9f1 ]---
Jun 20 15:21:30 metropol kernel: INFO: rcu_sched detected stalls on
CPUs/tasks:
Jun 20 15:21:30 metropol kernel: 2-...0: (1 GPs behind)
idle=1c2/1/4611686018427387904 softirq=4821/4821 fqs=2512
Jun 20 15:21:30 metropol kernel: (detected by 6, t=5252 jiffies,
g=2407, c=2406, q=815)
Jun 20 15:21:30 metropol kernel: Sending NMI from CPU 6 to CPUs 2:
Jun 20 15:21:30 metropol kernel: NMI backtrace for cpu 2
Jun 20 15:21:30 metropol kernel: CPU: 2 PID: 1698 Comm: Xorg Tainted: P
D O 4.16.0-2-amd64 #1 Debian 4.16.16-1
Jun 20 15:21:30 metropol kernel: Hardware name: To Be Filled By O.E.M.
To Be Filled By O.E.M./970 Pro3 R2.0, BIOS P2.80 05/31/2016
Jun 20 15:21:30 metropol kernel: RIP:
0010:native_queued_spin_lock_slowpath+0x128/0x190
Jun 20 15:21:30 metropol kernel: RSP: 0018:ffffa9a0c415bb50 EFLAGS: 00000002
Jun 20 15:21:30 metropol kernel: RAX: 0000000000000101 RBX:
0000000000000097 RCX: 0000000000000001
Jun 20 15:21:30 metropol kernel: RDX: 0000000000000101 RSI:
0000000000000001 RDI: ffffffffc14b1010
Jun 20 15:21:30 metropol kernel: RBP: 0000000000000046 R08:
0000000000000101 R09: 000000000000000f
Jun 20 15:21:30 metropol kernel: R10: ffffffffa0206a80 R11:
ffffffffa07a8dcd R12: 0000000000000002
Jun 20 15:21:30 metropol kernel: R13: 0000000000000002 R14:
0000000000000000 R15: 0000000000000000
Jun 20 15:21:30 metropol kernel: FS: 00007f3624fb76c0(0000)
GS:ffff9ccb7ec80000(0000) knlGS:0000000000000000
Jun 20 15:21:30 metropol kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jun 20 15:21:30 metropol kernel: CR2: 000055d7725f59e0 CR3:
00000003e880a000 CR4: 00000000000406e0
Jun 20 15:21:30 metropol kernel: Call Trace:
Jun 20 15:21:30 metropol kernel: _raw_spin_lock_irqsave+0x32/0x40
Jun 20 15:21:30 metropol kernel: pstore_dump+0x77/0x330
Jun 20 15:21:30 metropol kernel: ? vprintk_emit+0x3e4/0x450
Jun 20 15:21:30 metropol kernel: ? printk+0x52/0x6e
Jun 20 15:21:30 metropol kernel: kmsg_dump+0xb9/0xe0
Jun 20 15:21:30 metropol kernel: oops_end+0x6e/0xc0
Jun 20 15:21:30 metropol kernel: general_protection+0x25/0x50
Jun 20 15:21:30 metropol kernel: RIP: 0010:_nv007220rm+0x25/0x90 [nvidia]
Jun 20 15:21:30 metropol kernel: RSP: 0018:ffffa9a0c415bd20 EFLAGS: 00010006
Jun 20 15:21:30 metropol kernel: RAX: 48e28944ffffff36 RBX:
ffffffffc133d238 RCX: ffffa9a0c415bdb0
Jun 20 15:21:30 metropol kernel: RDX: ffffffffc06e0515 RSI:
00000000000006a2 RDI: ffffffffc133d238
Jun 20 15:21:30 metropol kernel: RBP: ffff9ccb1e74dff8 R08:
0000000000000000 R09: ffffa9a0c415bdac
Jun 20 15:21:30 metropol kernel: R10: 0000000000000000 R11:
0000000000000000 R12: 00000000000006a2
Jun 20 15:21:30 metropol kernel: R13: ffff9ccb1e733c00 R14:
ffff9ccb1ed16100 R15: ffff9ccb65ca0000
Jun 20 15:21:30 metropol kernel: ?
nv_check_pci_config_space+0x285/0x320 [nvidia]
Jun 20 15:21:30 metropol kernel: ? _nv025911rm+0x13/0x50 [nvidia]
Jun 20 15:21:30 metropol kernel: ? _nv035641rm+0x144/0x1e0 [nvidia]
Jun 20 15:21:30 metropol kernel: ? rm_free_unused_clients+0x4f/0xe0
[nvidia]
Jun 20 15:21:30 metropol kernel: ?
nv_check_pci_config_space+0x285/0x320 [nvidia]
Jun 20 15:21:30 metropol kernel: ? nvidia_close+0xba/0x350 [nvidia]
Jun 20 15:21:30 metropol kernel: ? nvidia_frontend_close+0x2a/0x40 [nvidia]
Jun 20 15:21:30 metropol kernel: ? __fput+0xd0/0x1e0
Jun 20 15:21:30 metropol kernel: ? task_work_run+0x8a/0xb0
Jun 20 15:21:30 metropol kernel: ? do_exit+0x2e1/0xb40
Jun 20 15:21:30 metropol kernel: ? SyS_ioctl+0x74/0x80
Jun 20 15:21:30 metropol kernel: ? rewind_stack_do_exit+0x17/0x20
Jun 20 15:21:30 metropol kernel: Code: 39 c2 74 b5 89 c2 89 d0 66 31 c0
41 39 c0 74 ea 4d 85 c9 c6 07 01 74 24 41 c7 41 08 01 00 00 00 eb 97 83
fa 01 75 04 f3 c3 f3 90 <8b> 07 84 c0 75 f8 b8 01 00 00 00 66 89 07 c3
f3 90 4c 8b 09 4d
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