** Description changed:
[Impact]
Boot up process may stuck with the ucsi cod trace
<4>[ 15.117180] workqueue: cannot queue ucsi_poll_worker [typec_ucsi] on wq
USBC000:00-con1
<4>[ 15.117196] WARNING: CPU: 14 PID: 0 at kernel/workqueue.c:2257
__queue_work+0x2f3/0x410
<4>[ 15.117205] Modules linked in: qrtr_mhi snd_seq_dummy snd_hrtimer
rfcomm snd_soc_cs42l43 spi_cs42l43 snd_soc_cs42l43_sdw pinctrl_cs42l43
snd_soc_sof_sdw snd_soc_intel_hda_dsp_common snd_soc_sdw_utils snd_sof_probes
xe snd_soc_cs35l56_sdw snd_soc_cs35l56 snd_soc_wm_adsp gpu_sched
snd_soc_cs35l56_shared cs42l43_sdw snd_soc_cs_amp_lib regmap_sdw drm_gpuvm
cs_dsp cs42l43 drm_ttm_helper drm_exec drm_suballoc_helper 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 qrtr snd_sof_pci
snd_sof_xtensa_dsp snd_sof intel_uncore_frequency intel_uncore_frequency_common
snd_sof_utils snd_hda_ext_core snd_soc_acpi_intel_match
snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation
x86_pkg_temp_thermal snd_soc_acpi intel_powerclamp soundwire_bus cmac
snd_soc_sdca coretemp algif_hash snd_soc_core algif_skcipher snd_compress
ac97_bus af_alg snd_pcm_dmaengine bnep snd_hda_intel
<4>[ 15.117256] snd_intel_dspcfg dell_pc kvm_intel platform_profile
snd_ctl_led snd_intel_sdw_acpi iwlmvm snd_hda_codec i915 kvm snd_hda_core
mac80211 snd_hwdep snd_pcm irqbypass polyval_clmulni libarc4 snd_seq_midi
polyval_generic snd_seq_midi_event ghash_clmulni_intel uvcvideo sha256_ssse3
snd_rawmidi dell_laptop sha1_ssse3 videobuf2_vmalloc aesni_intel uvc
videobuf2_memops snd_seq btusb binfmt_misc videobuf2_v4l2 cmdlinepart
crypto_simd drm_buddy dell_wmi videobuf2_common btrtl cryptd dell_smbios
snd_seq_device spi_nor ttm btintel mtd mei_gsc_proxy intel_rapl_msr iwlwifi
btbcm processor_thermal_device_pci videodev drm_display_helper snd_timer
i2c_i801 btmtk processor_thermal_device dcdbas rapl nls_iso8859_1
dell_wmi_sysman intel_cstate processor_thermal_wt_hint snd cec i2c_smbus
spi_intel_pci bluetooth cfg80211 mc dell_wmi_ddv dell_smm_hwmon qaic
firmware_attributes_class processor_thermal_rfim dell_wmi_descriptor wmi_bmof
soundcore spi_intel i2c_mux processor_thermal_rapl mei_me mhi intel_rapl_common
intel_vpu
<4>[ 15.117319] rc_core mei processor_thermal_wt_req
processor_thermal_power_floor i2c_algo_bit processor_thermal_mbox
int3403_thermal intel_pmc_core dptf_pch_fivr int340x_thermal_zone pmt_telemetry
pmt_class int3400_thermal intel_hid acpi_pad acpi_thermal_rel sparse_keymap
acpi_tad intel_vsec input_leds joydev mac_hid serio_raw sch_fq_codel msr
parport_pc ppdev lp parport efi_pstore nfnetlink dmi_sysfs ip_tables x_tables
autofs4 hid_sensor_custom hid_sensor_hub intel_ishtp_hid hid_multitouch
hid_generic nvme rtsx_pci_sdmmc i2c_hid_acpi ucsi_acpi video intel_lpss_pci
psmouse i2c_hid typec_ucsi nvme_core intel_ish_ipc intel_lpss igc thunderbolt
rtsx_pci intel_ishtp idma64 hid typec nvme_auth wmi pinctrl_meteorlake
pinctrl_meteorpoint
<4>[ 15.117366] CPU: 14 UID: 0 PID: 0 Comm: swapper/14 Not tainted
6.14.0-8011-oem #11+staging.12-Ubuntu
<4>[ 15.117370] Hardware name: Dell Inc. Dell Pro Max 16 Plus MB16250/,
BIOS 89.71.16 07/29/2025
<4>[ 15.117372] RIP: 0010:__queue_work+0x2f3/0x410
<4>[ 15.117376] Code: 00 00 41 83 e4 01 0f 85 49 fe ff ff 49 8b 77 18 48 8d
93 c0 00 00 00 48 c7 c7 60 22 9f 95 c6 05 06 21 66 02 01 e8 7d 19 fd ff <0f> 0b
e9 24 fe ff ff 0f 0b e9 10 fe ff ff 65 8b 05 04 14 e8 6b 48
<4>[ 15.117378] RSP: 0018:ffffcc2c805d8c98 EFLAGS: 00010046
<4>[ 15.117381] RAX: 0000000000000000 RBX: ffff8aa282eac200 RCX:
0000000000000000
<4>[ 15.117383] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
0000000000000000
<4>[ 15.117384] RBP: ffffcc2c805d8cd0 R08: 0000000000000000 R09:
0000000000000000
<4>[ 15.117386] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000000
<4>[ 15.117387] R13: ffffffff941b5420 R14: ffff8aa283b33220 R15:
ffff8aa283b33200
<4>[ 15.117388] FS: 0000000000000000(0000) GS:ffff8ac19ff00000(0000)
knlGS:0000000000000000
<4>[ 15.117390] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 15.117392] CR2: 000078c0c11c5000 CR3: 000000010203f002 CR4:
0000000000f72ef0
<4>[ 15.117394] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
<4>[ 15.117395] DR3: 0000000000000000 DR6: 00000000ffff07f0 DR7:
0000000000000400
<4>[ 15.117396] PKRU: 55555554
<4>[ 15.117397] Call Trace:
<4>[ 15.117400] <IRQ>
<4>[ 15.117403] ? __pfx_delayed_work_timer_fn+0x10/0x10
<4>[ 15.117408] delayed_work_timer_fn+0x19/0x30
<4>[ 15.117411] call_timer_fn+0x2c/0x150
<4>[ 15.117414] ? __pfx_delayed_work_timer_fn+0x10/0x10
<4>[ 15.117417] __run_timers+0x1c8/0x2d0
<4>[ 15.117420] timer_expire_remote+0x52/0x80
<4>[ 15.117422] tmigr_handle_remote_cpu+0x11e/0x280
<4>[ 15.117427] tmigr_handle_remote_up+0xf1/0x140
<4>[ 15.117430] tmigr_handle_remote+0xd9/0x140
<4>[ 15.117433] run_timer_softirq+0xeb/0x100
<4>[ 15.117435] handle_softirqs+0xe4/0x340
<4>[ 15.117440] __irq_exit_rcu+0x10e/0x130
<4>[ 15.117444] irq_exit_rcu+0xe/0x20
<4>[ 15.117446] sysvec_apic_timer_interrupt+0xa0/0xc0
<4>[ 15.117450] </IRQ>
<4>[ 15.117451] <TASK>
<4>[ 15.117452] asm_sysvec_apic_timer_interrupt+0x1b/0x20
[Fix]
We submit a patch to fix this issue
https://lkml.org/lkml/2025/10/2/100
v2 - https://lkml.org/lkml/2025/10/13/312
v3 - https://lkml.org/lkml/2025/10/17/338
+ v4 -
https://lore.kernel.org/lkml/[email protected]/
[Test]
Reboot the machine with AC plug on the TBT5 port, it should always boots up
correctly without call trace.
[Where problems could occur]
It should handle the destruction process correctly, and is not likely to
introduce regressions.
** Changed in: linux (Ubuntu Plucky)
Status: In Progress => Won't Fix
** Changed in: linux (Ubuntu Plucky)
Assignee: AceLan Kao (acelankao) => (unassigned)
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https://bugs.launchpad.net/bugs/2127764
Title:
Boot up hang with ucsi call trace while plug power cord or device on
tbt5 port
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