Info

Permalink
Function
warn_thunk_thunk
First occurrence
2025-06-05
Last occurrence
2025-07-03
State
NEW
Components
xorg-x11-drv-intel, kernel Tainted
Quality
-43

Statistics

Operating system Count
Fedora 42 19
Architecture Count
x86_64 19
Related packages Count
kernel-core 19
 0:6.14.9-300.fc42 19

Packages names with count less than the total count of reports are most probably not the cause of the problem.

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Complete report #1233376
Frame # Function Binary Source or offset Line
1
hsw_audio_codec_enable
xe 0xcf
2
hsw_audio_codec_enable
xe 0xcf
3
hsw_audio_codec_enable
xe 0xcf
4
warn_thunk_thunk
vmlinux 0x1a
5
hsw_audio_codec_enable
xe 0xcf
6
hsw_audio_codec_enable
xe 0xcf
7
? warn_thunk_thunk
vmlinux 0x1a
8
warn_thunk_thunk
vmlinux 0x1a
9
warn_thunk_thunk
vmlinux 0x1a
10
warn_thunk_thunk
vmlinux 0x1a
11
warn_thunk_thunk
vmlinux 0x1a
12
warn_thunk_thunk
vmlinux 0x1a
13
warn_thunk_thunk
vmlinux 0x1a
14
? warn_thunk_thunk
vmlinux 0x1a
15
warn_thunk_thunk
vmlinux 0x1a
16
? warn_thunk_thunk
vmlinux 0x1a
17
warn_thunk_thunk
vmlinux 0x1a
18
? warn_thunk_thunk
vmlinux 0x1a
19
warn_thunk_thunk
vmlinux 0x1a
WARNING: CPU: 7 PID: 4173 at drivers/gpu/drm/i915/display/intel_tc.c:1235 tc_phy_is_ready_and_owned.isra.0+0x64/0x80 [xe]
Modules linked in: uas usb_storage typec_displayport uinput snd_seq_dummy rfcomm snd_hrtimer xt_socket nft_socket nf_socket_ipv4 nf_socket_ipv6 nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 xt_comment nft_compat nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables sunrpc qrtr uhid snd_ctl_led snd_soc_skl_hda_dsp snd_soc_intel_sof_board_helpers bnep snd_soc_intel_hda_dsp_common snd_sof_probes snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component snd_soc_dmic snd_sof_pci_intel_lnl snd_sof_pci_intel_mtl snd_sof_intel_hda_generic soundwire_intel soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_hdmi snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_hda_ext_core snd_soc_acpi_intel_match vfat snd_soc_acpi_intel_sdca_quirks fat soundwire_generic_allocation
 snd_soc_acpi soundwire_bus snd_soc_sdca snd_soc_core snd_compress intel_uncore_frequency ac97_bus intel_uncore_frequency_common snd_pcm_dmaengine x86_pkg_temp_thermal snd_hda_intel intel_powerclamp snd_intel_dspcfg iwlmvm coretemp snd_intel_sdw_acpi snd_hda_codec kvm_intel r8153_ecm mac80211 processor_thermal_device_pci snd_hda_core cdc_ether processor_thermal_device uvcvideo snd_hwdep kvm usbnet processor_thermal_wt_hint uvc snd_seq libarc4 processor_thermal_rfim videobuf2_vmalloc snd_seq_device irqbypass processor_thermal_rapl intel_rapl_msr videobuf2_memops spi_nor rapl snd_pcm intel_rapl_common iwlwifi btintel_pcie videobuf2_v4l2 r8152 intel_cstate mtd snd_timer processor_thermal_wt_req mei_gsc_proxy btintel videobuf2_common intel_uncore mii pcspkr spi_intel_pci wmi_bmof snd processor_thermal_power_floor cfg80211 mei_me bluetooth wireless_hotkey videodev int3403_thermal spi_intel soundcore processor_thermal_mbox mei rfkill idma64 thunderbolt intel_pmc_core mc int340x_thermal_zone int3400_thermal
 lg_laptop pmt_telemetry acpi_thermal_rel sparse_keymap acpi_pad pmt_class joydev loop nfnetlink zram lz4hc_compress lz4_compress xe drm_ttm_helper ttm i2c_algo_bit gpu_sched drm_buddy polyval_clmulni drm_suballoc_helper polyval_generic drm_gpuvm ghash_clmulni_intel hid_multitouch nvme drm_exec sha512_ssse3 ucsi_acpi nvme_core sha256_ssse3 drm_display_helper typec_ucsi i2c_hid_acpi video sha1_ssse3 intel_vpu nvme_auth intel_vsec cec typec i2c_hid wmi pinctrl_intel_platform serio_raw fuse
CPU: 7 UID: 0 PID: 4173 Comm: kworker/u34:3 Tainted: G        W          6.14.9-300.fc42.x86_64 #1
Tainted: [W]=WARN
Hardware name: LG Electronics 17Z90TL-G.AU88C2/17Z90TL, BIOS L2ZJ3160 X64 03/13/2025
Workqueue: async async_run_entry_fn
RIP: 0010:tc_phy_is_ready_and_owned.isra.0+0x64/0x80 [xe]
Code: 24 0c 44 89 4c 24 08 48 89 14 24 e8 b6 5e 79 e8 48 8b 14 24 48 c7 c1 f0 10 95 c0 48 c7 c7 61 e6 91 c0 48 89 c6 e8 7c 2f c2 e7 <0f> 0b 44 8b 44 24 0c 44 8b 4c 24 08 48 83 c4 10 44 89 c0 44 21 c8
RSP: 0018:ffffd09f46a67c80 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff899cc458b000 RCX: 0000000000000027
RDX: ffff89a41f9a1948 RSI: 0000000000000001 RDI: ffff89a41f9a1940
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffd09f46a67b38
R10: ffffffffaa8868e0 R11: 00000000ffffe58f R12: ffff899cda8a4000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff89a41f980000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd04c9e9654 CR3: 000000072382c004 CR4: 0000000000f72ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 tc_phy_get_current_mode+0x7d/0x280 [xe]
 xelpdp_tc_phy_get_hw_state+0x38/0xd0 [xe]
 intel_tc_port_init_mode+0x5a/0x1f0 [xe]
 drm_mode_config_reset+0xd7/0x150
 __xe_display_pm_resume+0xc9/0x100 [xe]
 xe_pm_resume+0x141/0x1d0 [xe]
 ? __pfx_pci_pm_resume+0x10/0x10
 dpm_run_callback+0x47/0x140
 device_resume+0x147/0x250
 async_resume+0x21/0x30
 async_run_entry_fn+0x31/0x130
 process_one_work+0x17b/0x340
 worker_thread+0x255/0x390
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xec/0x230
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x31/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Complete report #1227638
Frame # Function Binary Source or offset Line
1
? warn_thunk_thunk
vmlinux 0x1a
2
hsw_audio_codec_enable
xe 0xcf
3
hsw_audio_codec_enable
xe 0xcf
4
? warn_thunk_thunk
vmlinux 0x1a
5
hsw_audio_codec_enable
xe 0xcf
6
hsw_audio_codec_enable
xe 0xcf
7
? hsw_audio_codec_enable
xe 0xcf
8
hsw_audio_codec_enable
xe 0xcf
9
? warn_thunk_thunk
vmlinux 0x1a
10
hsw_audio_codec_enable
xe 0xcf
11
warn_thunk_thunk
vmlinux 0x1a
12
? warn_thunk_thunk
vmlinux 0x1a
13
hsw_audio_codec_enable
xe 0xcf
14
hsw_audio_codec_enable
xe 0xcf
15
warn_thunk_thunk
vmlinux 0x1a
16
warn_thunk_thunk
vmlinux 0x1a
17
? warn_thunk_thunk
vmlinux 0x1a
18
warn_thunk_thunk
vmlinux 0x1a
19
? warn_thunk_thunk
vmlinux 0x1a
20
warn_thunk_thunk
vmlinux 0x1a
21
? warn_thunk_thunk
vmlinux 0x1a
22
warn_thunk_thunk
vmlinux 0x1a
WARNING: CPU: 0 PID: 68585 at drivers/gpu/drm/drm_vblank.c:1307 drm_wait_one_vblank+0x1f9/0x210
Modules linked in: hid_logitech_hidpp uhid snd_seq_midi snd_seq_midi_event snd_usb_audio snd_usbmidi_lib snd_ump snd_rawmidi nf_conntrack_netlink xt_nat veth uinput rfcomm snd_seq_dummy snd_hrtimer xt_conntrack xt_MASQUERADE bridge stp llc xt_set xt_addrtype nft_compat overlay sunrpc nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables qrtr bnep cdc_mbim cdc_wdm vfat fat snd_soc_skl_hda_dsp snd_soc_intel_sof_board_helpers snd_sof_probes snd_soc_intel_hda_dsp_common snd_hda_codec_conexant snd_hda_codec_generic snd_soc_dmic snd_sof_pci_intel_mtl snd_sof_intel_hda_generic soundwire_intel soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_hdmi iwlmvm snd_sof_pci snd_sof_xtensa_dsp snd_sof intel_uncore_frequency snd_sof_utils intel_uncore_frequency_common
 snd_hda_ext_core mac80211 snd_soc_acpi_intel_match x86_pkg_temp_thermal intel_powerclamp snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_acpi soundwire_bus coretemp snd_soc_sdca kvm_intel snd_soc_core iTCO_wdt libarc4 snd_compress intel_pmc_bxt mei_gsc_proxy ac97_bus kvm snd_pcm_dmaengine snd_hda_intel uvcvideo spd5118 iTCO_vendor_support snd_intel_dspcfg intel_rapl_msr uvc snd_intel_sdw_acpi videobuf2_vmalloc videobuf2_memops snd_hda_codec btusb videobuf2_v4l2 btrtl snd_hda_core iwlwifi btintel irqbypass videobuf2_common btbcm cdc_ncm snd_hwdep rapl cdc_ether btmtk processor_thermal_device_pci intel_cstate videodev processor_thermal_device bluetooth snd_seq usbnet processor_thermal_wt_hint think_lmi cfg80211 mc intel_uncore snd_ctl_led mii snd_seq_device processor_thermal_rfim pcspkr firmware_attributes_class snd_pcm wmi_bmof thinkpad_acpi mei_me processor_thermal_rapl e1000e intel_rapl_common i2c_i801 platform_profile mei processor_thermal_wt_req thunderbolt snd_timer i2c_smbus
 idma64 rfkill processor_thermal_power_floor processor_thermal_mbox igen6_edac snd soundcore int3403_thermal int340x_thermal_zone intel_pmc_core joydev pmt_telemetry intel_hid acpi_tad int3400_thermal acpi_pad acpi_thermal_rel pmt_class sparse_keymap loop nfnetlink zram lz4hc_compress lz4_compress dm_crypt uas usb_storage nvme nvme_core polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 ucsi_acpi hid_multitouch sha1_ssse3 typec_ucsi nvme_auth intel_vpu typec i2c_hid_acpi i2c_hid pinctrl_meteorlake serio_raw xe drm_ttm_helper intel_vsec gpu_sched drm_suballoc_helper drm_gpuvm drm_exec i2c_algo_bit drm_buddy video wmi ttm drm_display_helper cec fuse
CPU: 0 UID: 0 PID: 68585 Comm: kworker/u65:25 Tainted: G     U  W          6.14.9-300.fc42.x86_64 #1
Tainted: [U]=USER, [W]=WARN
Hardware name: LENOVO 21SRCTO1WW/21SRCTO1WW, BIOS R30ET32W(1.06 ) 04/25/2025
Workqueue: events_unbound intel_tc_port_link_reset_work [xe]
RIP: 0010:drm_wait_one_vblank+0x1f9/0x210
Code: ff 48 8b 7b 08 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 7b d6 02 00 89 e9 4c 89 e2 48 c7 c7 30 ca eb 85 48 89 c6 e8 47 a7 4b ff <0f> 0b e9 6f fe ff ff e8 1b 43 5c 00 66 66 2e 0f 1f 84 00 00 00 00
RSP: 0018:ffffcb178385fae0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff89924e35c000 RCX: 0000000000000027
RDX: ffff899990421948 RSI: 0000000000000001 RDI: ffff899990421940
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffcb178385f988
R10: ffffffff869368e8 R11: 00000000ffffdfff R12: ffff899242c965e0
R13: 0000000000032f99 R14: ffff899240078168 R15: 0000000000000004
FS:  0000000000000000(0000) GS:ffff899990400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000029a40008b110 CR3: 000000016782c001 CR4: 0000000000f72ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 ? __pfx_autoremove_wake_function+0x10/0x10
 hsw_audio_codec_disable+0xfb/0x1c0 [xe]
 intel_audio_codec_disable+0xa9/0x190 [xe]
 ? dev_printk_emit+0x62/0x80
 intel_pre_plane_update+0x1d2/0x5c0 [xe]
 intel_commit_modeset_disables+0x5f/0x3f0 [xe]
 ? intel_modeset_get_crtc_power_domains+0x8e/0xe0 [xe]
 intel_atomic_commit_tail+0x26a/0xa70 [xe]
 ? __flush_workqueue+0x1b5/0x420
 intel_atomic_commit+0x232/0x280 [xe]
 drm_atomic_commit+0xaf/0xe0
 ? __pfx___drm_printfn_info+0x10/0x10
 reset_link+0x22d/0x270 [xe]
 intel_tc_port_link_reset_work+0x9b/0xe0 [xe]
 process_one_work+0x17b/0x340
 worker_thread+0x255/0x390
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xec/0x230
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x31/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Complete report #1219818
Frame # Function Binary Source or offset Line
1
? warn_thunk_thunk
vmlinux 0x1a
2
hsw_audio_codec_enable
xe 0xcf
3
hsw_audio_codec_enable
xe 0xcf
4
? hsw_audio_codec_enable
xe 0xcf
5
hsw_audio_codec_enable
xe 0xcf
6
hsw_audio_codec_enable
xe 0xcf
7
? warn_thunk_thunk
vmlinux 0x1a
8
hsw_audio_codec_enable
xe 0xcf
9
warn_thunk_thunk
vmlinux 0x1a
10
? warn_thunk_thunk
vmlinux 0x1a
11
hsw_audio_codec_enable
xe 0xcf
12
hsw_audio_codec_enable
xe 0xcf
13
warn_thunk_thunk
vmlinux 0x1a
14
warn_thunk_thunk
vmlinux 0x1a
15
? warn_thunk_thunk
vmlinux 0x1a
16
warn_thunk_thunk
vmlinux 0x1a
17
? warn_thunk_thunk
vmlinux 0x1a
18
warn_thunk_thunk
vmlinux 0x1a
19
? warn_thunk_thunk
vmlinux 0x1a
20
warn_thunk_thunk
vmlinux 0x1a
WARNING: CPU: 7 PID: 1200067 at drivers/gpu/drm/drm_vblank.c:1307 drm_wait_one_vblank+0x1f9/0x210
Modules linked in: hid_microsoft ff_memless snd_usb_audio snd_usbmidi_lib snd_ump snd_rawmidi r8153_ecm cdc_ether usbnet r8152 mii overlay vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) uinput rfcomm snd_seq_dummy snd_hrtimer nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables qrtr uhid bnep snd_ctl_led snd_soc_skl_hda_dsp snd_soc_intel_sof_board_helpers snd_sof_probes snd_soc_intel_hda_dsp_common snd_hda_codec_realtek snd_hda_codec_generic snd_soc_dmic snd_hda_scodec_component sunrpc binfmt_misc vfat fat snd_sof_pci_intel_lnl snd_sof_pci_intel_mtl snd_sof_intel_hda_generic soundwire_intel soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_hdmi snd_sof_pci snd_sof_xtensa_dsp snd_sof iwlmvm snd_sof_utils snd_hda_ext_core snd_soc_acpi_intel_match
 snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_acpi soundwire_bus spi_nor intel_uncore_frequency intel_uncore_frequency_common snd_soc_sdca x86_pkg_temp_thermal mei_gsc_proxy mtd mac80211 snd_soc_core snd_hda_scodec_cs35l41_spi intel_powerclamp intel_rapl_msr regmap_spi snd_compress ac97_bus coretemp kvm_intel uvcvideo libarc4 snd_pcm_dmaengine uvc snd_hda_intel videobuf2_vmalloc videobuf2_memops kvm snd_intel_dspcfg snd_intel_sdw_acpi videobuf2_v4l2 snd_hda_codec videobuf2_common snd_hda_core videodev snd_hwdep snd_seq snd_hda_scodec_cs35l41_i2c irqbypass snd_hda_scodec_cs35l41 snd_seq_device rapl mc processor_thermal_device_pci intel_cstate iwlwifi snd_pcm snd_hda_cs_dsp_ctls snd_soc_cs_amp_lib intel_uncore processor_thermal_device snd_soc_cs35l41_lib hp_wmi btintel_pcie processor_thermal_wt_hint processor_thermal_rfim platform_profile wmi_bmof snd_timer cs_dsp btintel processor_thermal_rapl spi_intel_pci cfg80211 bluetooth spi_intel snd intel_rapl_common idma64
 processor_thermal_wt_req mei_me thunderbolt soundcore mei processor_thermal_power_floor rfkill processor_thermal_mbox int3403_thermal soc_button_array int340x_thermal_zone serial_multi_instantiate intel_pmc_core int3400_thermal pmt_telemetry acpi_tad pmt_class acpi_pad intel_hid acpi_thermal_rel sparse_keymap joydev loop nfnetlink zram lz4hc_compress lz4_compress xe drm_ttm_helper ttm i2c_algo_bit gpu_sched drm_buddy drm_suballoc_helper drm_gpuvm nvme drm_exec drm_display_helper nvme_core polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 intel_ish_ipc sha256_ssse3 hid_sensor_hub hid_multitouch sha1_ssse3 intel_vpu nvme_auth cec intel_ishtp intel_vsec i2c_hid_acpi i2c_hid ucsi_acpi typec_ucsi video typec wmi pinctrl_intel_platform serio_raw fuse
CPU: 7 UID: 0 PID: 1200067 Comm: kworker/u34:9 Tainted: G        W  OE      6.14.9-300.fc42.x86_64 #1
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: HP HP OmniBook Ultra Flip Laptop 14-fh0xxx/8CDE, BIOS W75 Ver. 01.01.09 12/18/2024
Workqueue: events_unbound intel_tc_port_link_reset_work [xe]
RIP: 0010:drm_wait_one_vblank+0x1f9/0x210
Code: ff 48 8b 7b 08 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 7b d6 02 00 89 e9 4c 89 e2 48 c7 c7 30 ca eb a9 48 89 c6 e8 47 a7 4b ff <0f> 0b e9 6f fe ff ff e8 1b 43 5c 00 66 66 2e 0f 1f 84 00 00 00 00
RSP: 0018:ffffcdfdb1b07b48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88c58f810000 RCX: 0000000000000027
RDX: ffff88ccdf9a1948 RSI: 0000000000000001 RDI: ffff88ccdf9a1940
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffcdfdb1b079f0
R10: ffffffffaa9368e8 R11: 00000000ffffdfff R12: ffff88c586b97b30
R13: 000000000021d741 R14: ffff88c5846c8968 R15: ffff88c58f8115d0
FS:  0000000000000000(0000) GS:ffff88ccdf980000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd2344c000 CR3: 00000002d54a5004 CR4: 0000000000f70ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 ? __pfx_autoremove_wake_function+0x10/0x10
 hsw_audio_codec_enable+0xcf/0x190 [xe]
 intel_audio_codec_enable+0xb7/0x260 [xe]
 ? intel_fbc_post_update+0x89/0xe0 [xe]
 intel_post_plane_update+0x14d/0x3f0 [xe]
 intel_atomic_commit_tail+0x6e8/0xa70 [xe]
 ? __flush_workqueue+0x1b5/0x420
 intel_atomic_commit+0x232/0x280 [xe]
 drm_atomic_commit+0xaf/0xe0
 ? __pfx___drm_printfn_info+0x10/0x10
 reset_link+0x22d/0x270 [xe]
 intel_tc_port_link_reset_work+0x9b/0xe0 [xe]
 process_one_work+0x17b/0x340
 worker_thread+0x255/0x390
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xec/0x230
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x31/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>