Public bug reported:
With the latest 7.0.0-7-generic kernel, I get the following (NVIDIA-
related) error messages during boot:
[ 5.636132] nvidia: loading out-of-tree module taints kernel.
[ 5.636143] nvidia: module license 'NVIDIA' taints kernel.
[ 5.636144] Disabling lock debugging due to kernel taint
[ 5.636149] nvidia: module license taints kernel.
[ 5.811651] ------------[ cut here ]------------
[ 5.811656] Unpatched return thunk in use. This should not happen!
[ 5.811658] WARNING: arch/x86/kernel/cpu/bugs.c:3736 at
__warn_thunk+0x10/0x20, CPU#7: (udev-worker)/424
[ 5.811667] Modules linked in: nls_iso8859_1 intel_rapl_msr nvidia(POE+)
intel_rapl_common platform_profile x86_pkg_temp_thermal intel_powerclamp
spi_intel_platform lis3lv02d_i2c spi_intel mei_pxp coretemp lis3lv02d
dell_laptop mei_hdcp at24 snd_hda_codec_alc269 snd_hda_codec_realtek_lib
snd_hda_scodec_component snd_hda_codec_generic dell_smm_hwmon
snd_hda_codec_nvhdmi kvm_intel snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc
kvm btusb uvc videobuf2_memops dell_wmi btmtk videobuf2_v4l2 btrtl irqbypass
snd_hda_intel videobuf2_common btbcm iwlmvm dell_smbios snd_hda_codec btintel
rapl i2c_i801 dcdbas videodev snd_hda_core bluetooth dell_wmi_descriptor
wmi_bmof intel_cstate sparse_keymap mc snd_intel_dspcfg i2c_smbus
snd_intel_sdw_acpi mac80211 snd_soc_rt5640 i2c_mux snd_soc_rl6231 snd_hwdep
libarc4 snd_seq_midi snd_soc_core snd_seq_midi_event snd_compress snd_rawmidi
ac97_bus snd_pcm_dmaengine iwlwifi snd_seq snd_pcm lpc_ich snd_seq_device
dell_lis3lv02d snd_timer dell_smo8800 cfg80211 drm_ttm_helper dell_rbtn ttm
mei_me
[ 5.811745] snd soundcore mei joydev input_leds mac_hid sch_fq_codel
nvme_fabrics ppdev parport_pc lp parport nvme_core msr nvme_keyring nvme_auth
hkdf efi_pstore nfnetlink dmi_sysfs autofs4 mmc_block rpmb_core btrfs
libblake2b xor raid6_pq sdhci_pci ghash_clmulni_intel psmouse sdhci_uhs2 video
sdhci serio_raw cqhci ahci libahci e1000e wmi aesni_intel
[ 5.811786] CPU: 7 UID: 0 PID: 424 Comm: (udev-worker) Tainted: P
OE 7.0.0-7-generic #7-Ubuntu PREEMPT(lazy)
[ 5.811791] Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE,
[E]=UNSIGNED_MODULE
[ 5.811792] Hardware name: Dell Inc. Precision M4800/077KCT, BIOS A26
06/13/2019
[ 5.811794] RIP: 0010:__warn_thunk+0x10/0x20
[ 5.811798] Code: 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 48 8d 3d 30 6c b2 02 <67> 48 0f
b9 3a 5d 31 ff c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90
[ 5.811801] RSP: 0018:ffffd3e7827d3858 EFLAGS: 00010246
[ 5.811804] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 5.811806] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff894d7660
[ 5.811808] RBP: ffffd3e7827d3858 R08: 0000000000000000 R09: 0000000000000000
[ 5.811809] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8be1c1426ce0
[ 5.811811] R13: ffffffffc2ba1ec0 R14: ffffffffc0bde010 R15: 000059e757e18e80
[ 5.811813] FS: 00007c2135518c80(0000) GS:ffff8be954388000(0000)
knlGS:0000000000000000
[ 5.811816] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.811818] CR2: 000059e757c76650 CR3: 0000000114a00005 CR4: 00000000001726f0
[ 5.811820] Call Trace:
[ 5.811823] <TASK>
[ 5.811826] warn_thunk_thunk+0x16/0x30
[ 5.811833] nvidia_init_module+0x29/0x6a0 [nvidia]
[ 5.812321] ? ____versions+0x2c182d901ec8/0x2c182d901ec8 [nvidia]
[ 5.812841] do_one_initcall+0x59/0x350
[ 5.812873] do_init_module+0x8b/0x290
[ 5.812879] load_module+0x817/0x920
[ 5.812885] init_module_from_file+0xfb/0x180
[ 5.812892] idempotent_init_module+0x10e/0x300
[ 5.812897] __x64_sys_finit_module+0x73/0xf0
[ 5.812903] x64_sys_call+0xe2e/0x2390
[ 5.812908] do_syscall_64+0x115/0x5c0
[ 5.812916] ? vfs_read+0x179/0x3a0
[ 5.812924] ? vfs_read+0x179/0x3a0
[ 5.812929] ? restore_fpregs_from_fpstate+0x46/0xe0
[ 5.812936] ? switch_fpu_return+0x64/0x110
[ 5.812941] ? exit_to_user_mode_loop+0x346/0x500
[ 5.812947] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812952] ? do_syscall_64+0x150/0x5c0
[ 5.812957] ? putname+0x41/0x90
[ 5.812962] ? restore_fpregs_from_fpstate+0x46/0xe0
[ 5.812968] ? switch_fpu_return+0x64/0x110
[ 5.812972] ? __x64_sys_openat+0x5f/0xa0
[ 5.812978] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812981] ? do_syscall_64+0x150/0x5c0
[ 5.812985] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812989] ? do_syscall_64+0x150/0x5c0
[ 5.812992] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812996] ? do_syscall_64+0x150/0x5c0
[ 5.813000] ? exc_page_fault+0x94/0x1e0
[ 5.813006] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 5.813010] RIP: 0033:0x7c2134d34d0d
[ 5.813017] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 8b 0d cb d0 0d 00 f7 d8 64 89 01 48
[ 5.813020] RSP: 002b:00007ffc3681a1a8 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 5.813026] RAX: ffffffffffffffda RBX: 000059e757e25250 RCX: 00007c2134d34d0d
[ 5.813029] RDX: 0000000000000004 RSI: 000059e757e18e80 RDI: 000000000000003d
[ 5.813032] RBP: 00007ffc3681a240 R08: 0000000000000000 R09: 000059e757e1bf50
[ 5.813034] R10: 0000000000000000 R11: 0000000000000246 R12: 000059e757e18e80
[ 5.813035] R13: 000059e757e2d420 R14: 0000000000020000 R15: 0000000000000000
[ 5.813040] </TASK>
[ 5.813042] ---[ end trace 0000000000000000 ]---
[ 6.053413] NVRM: loading NVIDIA UNIX x86_64 Kernel Module
580.126.09 Wed Jan 7 22:59:56 UTC 2026
The system is a Dell Precision M4800 with the following graphics
hardware:
Graphics:
Device-1: NVIDIA GM206GLM [Quadro M2200 Mobile] vendor: Dell driver: nvidia
v: 580.126.09 arch: Maxwell pcie: speed: 8 GT/s lanes: 16 ports:
active: eDP-1 empty: DP-1, DP-2, DP-3, VGA-1 bus-ID: 01:00.0
chip-ID: 10de:1436
Display: unspecified server: X.Org v: 24.1.9 with: Xwayland v: 24.1.9
compositor: kwin_wayland driver: gpu: nvidia,nvidia-nvswitch display-ID: :0
screens: 1
Screen-1: 0 s-res: 3200x1800 s-dpi: 96
Monitor-1: eDP-1 model: Sharp 0x13f9 res: 3200x1800 hz: 60 dpi: 235
diag: 397mm (15.6")
running Ubuntu resolute.
** Affects: nvidia-graphics-drivers-580 (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
With the latest 7.0.0-7-generic kernel, I get the following (NVIDIA-
related) error messages during boot:
[ 5.636132] nvidia: loading out-of-tree module taints kernel.
[ 5.636143] nvidia: module license 'NVIDIA' taints kernel.
[ 5.636144] Disabling lock debugging due to kernel taint
[ 5.636149] nvidia: module license taints kernel.
[ 5.811651] ------------[ cut here ]------------
[ 5.811656] Unpatched return thunk in use. This should not happen!
[ 5.811658] WARNING: arch/x86/kernel/cpu/bugs.c:3736 at
__warn_thunk+0x10/0x20, CPU#7: (udev-worker)/424
[ 5.811667] Modules linked in: nls_iso8859_1 intel_rapl_msr nvidia(POE+)
intel_rapl_common platform_profile x86_pkg_temp_thermal intel_powerclamp
spi_intel_platform lis3lv02d_i2c spi_intel mei_pxp coretemp lis3lv02d
dell_laptop mei_hdcp at24 snd_hda_codec_alc269 snd_hda_codec_realtek_lib
snd_hda_scodec_component snd_hda_codec_generic dell_smm_hwmon
snd_hda_codec_nvhdmi kvm_intel snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc
kvm btusb uvc videobuf2_memops dell_wmi btmtk videobuf2_v4l2 btrtl irqbypass
snd_hda_intel videobuf2_common btbcm iwlmvm dell_smbios snd_hda_codec btintel
rapl i2c_i801 dcdbas videodev snd_hda_core bluetooth dell_wmi_descriptor
wmi_bmof intel_cstate sparse_keymap mc snd_intel_dspcfg i2c_smbus
snd_intel_sdw_acpi mac80211 snd_soc_rt5640 i2c_mux snd_soc_rl6231 snd_hwdep
libarc4 snd_seq_midi snd_soc_core snd_seq_midi_event snd_compress snd_rawmidi
ac97_bus snd_pcm_dmaengine iwlwifi snd_seq snd_pcm lpc_ich snd_seq_device
dell_lis3lv02d snd_timer dell_smo8800 cfg80211 drm_ttm_helper dell_rbtn ttm
mei_me
[ 5.811745] snd soundcore mei joydev input_leds mac_hid sch_fq_codel
nvme_fabrics ppdev parport_pc lp parport nvme_core msr nvme_keyring nvme_auth
hkdf efi_pstore nfnetlink dmi_sysfs autofs4 mmc_block rpmb_core btrfs
libblake2b xor raid6_pq sdhci_pci ghash_clmulni_intel psmouse sdhci_uhs2 video
sdhci serio_raw cqhci ahci libahci e1000e wmi aesni_intel
- [ 5.811786] CPU: 7 UID: 0 PID: 424 Comm: (udev-worker) Tainted: P
OE 7.0.0-7-generic #7-Ubuntu PREEMPT(lazy)
+ [ 5.811786] CPU: 7 UID: 0 PID: 424 Comm: (udev-worker) Tainted: P
OE 7.0.0-7-generic #7-Ubuntu PREEMPT(lazy)
[ 5.811791] Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE,
[E]=UNSIGNED_MODULE
[ 5.811792] Hardware name: Dell Inc. Precision M4800/077KCT, BIOS A26
06/13/2019
[ 5.811794] RIP: 0010:__warn_thunk+0x10/0x20
[ 5.811798] Code: 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 48 8d 3d 30 6c b2 02 <67> 48 0f
b9 3a 5d 31 ff c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90
[ 5.811801] RSP: 0018:ffffd3e7827d3858 EFLAGS: 00010246
[ 5.811804] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000000
[ 5.811806] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
ffffffff894d7660
[ 5.811808] RBP: ffffd3e7827d3858 R08: 0000000000000000 R09:
0000000000000000
[ 5.811809] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff8be1c1426ce0
[ 5.811811] R13: ffffffffc2ba1ec0 R14: ffffffffc0bde010 R15:
000059e757e18e80
[ 5.811813] FS: 00007c2135518c80(0000) GS:ffff8be954388000(0000)
knlGS:0000000000000000
[ 5.811816] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.811818] CR2: 000059e757c76650 CR3: 0000000114a00005 CR4:
00000000001726f0
[ 5.811820] Call Trace:
[ 5.811823] <TASK>
[ 5.811826] warn_thunk_thunk+0x16/0x30
[ 5.811833] nvidia_init_module+0x29/0x6a0 [nvidia]
[ 5.812321] ? ____versions+0x2c182d901ec8/0x2c182d901ec8 [nvidia]
[ 5.812841] do_one_initcall+0x59/0x350
[ 5.812873] do_init_module+0x8b/0x290
[ 5.812879] load_module+0x817/0x920
[ 5.812885] init_module_from_file+0xfb/0x180
[ 5.812892] idempotent_init_module+0x10e/0x300
[ 5.812897] __x64_sys_finit_module+0x73/0xf0
[ 5.812903] x64_sys_call+0xe2e/0x2390
[ 5.812908] do_syscall_64+0x115/0x5c0
[ 5.812916] ? vfs_read+0x179/0x3a0
[ 5.812924] ? vfs_read+0x179/0x3a0
[ 5.812929] ? restore_fpregs_from_fpstate+0x46/0xe0
[ 5.812936] ? switch_fpu_return+0x64/0x110
[ 5.812941] ? exit_to_user_mode_loop+0x346/0x500
[ 5.812947] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812952] ? do_syscall_64+0x150/0x5c0
[ 5.812957] ? putname+0x41/0x90
[ 5.812962] ? restore_fpregs_from_fpstate+0x46/0xe0
[ 5.812968] ? switch_fpu_return+0x64/0x110
[ 5.812972] ? __x64_sys_openat+0x5f/0xa0
[ 5.812978] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812981] ? do_syscall_64+0x150/0x5c0
[ 5.812985] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812989] ? do_syscall_64+0x150/0x5c0
[ 5.812992] ? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
[ 5.812996] ? do_syscall_64+0x150/0x5c0
[ 5.813000] ? exc_page_fault+0x94/0x1e0
[ 5.813006] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 5.813010] RIP: 0033:0x7c2134d34d0d
[ 5.813017] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 8b 0d cb d0 0d 00 f7 d8 64 89 01 48
[ 5.813020] RSP: 002b:00007ffc3681a1a8 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 5.813026] RAX: ffffffffffffffda RBX: 000059e757e25250 RCX:
00007c2134d34d0d
[ 5.813029] RDX: 0000000000000004 RSI: 000059e757e18e80 RDI:
000000000000003d
[ 5.813032] RBP: 00007ffc3681a240 R08: 0000000000000000 R09:
000059e757e1bf50
[ 5.813034] R10: 0000000000000000 R11: 0000000000000246 R12:
000059e757e18e80
[ 5.813035] R13: 000059e757e2d420 R14: 0000000000020000 R15:
0000000000000000
[ 5.813040] </TASK>
[ 5.813042] ---[ end trace 0000000000000000 ]---
[ 6.053413] NVRM: loading NVIDIA UNIX x86_64 Kernel Module
580.126.09 Wed Jan 7 22:59:56 UTC 2026
- The system is a Dell M4800 with the following graphics hardware:
+ The system is a Dell Precision M4800 with the following graphics
+ hardware:
Graphics:
- Device-1: NVIDIA GM206GLM [Quadro M2200 Mobile] vendor: Dell driver: nvidia
- v: 580.126.09 arch: Maxwell pcie: speed: 8 GT/s lanes: 16 ports:
- active: eDP-1 empty: DP-1, DP-2, DP-3, VGA-1 bus-ID: 01:00.0
- chip-ID: 10de:1436
- Display: unspecified server: X.Org v: 24.1.9 with: Xwayland v: 24.1.9
- compositor: kwin_wayland driver: gpu: nvidia,nvidia-nvswitch display-ID:
:0
- screens: 1
- Screen-1: 0 s-res: 3200x1800 s-dpi: 96
- Monitor-1: eDP-1 model: Sharp 0x13f9 res: 3200x1800 hz: 60 dpi: 235
- diag: 397mm (15.6")
+ Device-1: NVIDIA GM206GLM [Quadro M2200 Mobile] vendor: Dell driver: nvidia
+ v: 580.126.09 arch: Maxwell pcie: speed: 8 GT/s lanes: 16 ports:
+ active: eDP-1 empty: DP-1, DP-2, DP-3, VGA-1 bus-ID: 01:00.0
+ chip-ID: 10de:1436
+ Display: unspecified server: X.Org v: 24.1.9 with: Xwayland v: 24.1.9
+ compositor: kwin_wayland driver: gpu: nvidia,nvidia-nvswitch display-ID:
:0
+ screens: 1
+ Screen-1: 0 s-res: 3200x1800 s-dpi: 96
+ Monitor-1: eDP-1 model: Sharp 0x13f9 res: 3200x1800 hz: 60 dpi: 235
+ diag: 397mm (15.6")
running Ubuntu resolute.
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https://bugs.launchpad.net/bugs/2144741
Title:
drivers generates 'unpatched return thunk in use' message during boot
To manage notifications about this bug go to:
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