Good day,
There's a problem with ucsi starting from 5.2-rc1 (maybe earlier
versions of 5.2 are affected too).
Recently I've tried these versions of rc3 (commits), all have this issue:
3ab4436f688c2d2f221793953cd05435ca84261c (05/31)
3ea3091f1bd8586125848c62be295910e9802af0
cd6c84d8f0cdc911df435bb075ba22ce3c605b07 (rc2)
These are lines from journal logs (more in the attachment):
Jun 01 16:17:27 kernel: BUG: kernel NULL pointer dereference, address:
0000000000000368
Jun 01 16:17:27 kernel: #PF: supervisor read access in kernel mode
Jun 01 16:17:27 kernel: #PF: error_code(0x0000) - not-present page
Jun 01 16:17:27 kernel: Oops: 0000 [#1] PREEMPT SMP PTI
Jun 01 16:17:27 kernel: CPU: 7 PID: 252 Comm: kworker/7:2 Tainted: G
U OE 5.2.0-1-MANJARO #1
Jun 01 16:17:27 kernel: Hardware name: Timi TM1701/TM1701, BIOS
XMAKB5R0P0906 10/23/2018
Jun 01 16:17:27 kernel: Workqueue: events_long ucsi_init [typec_ucsi]
Jun 01 16:17:27 kernel: RIP: 0010:typec_altmode_get_partner+0x5/0x20 [typec]
Jun 01 16:17:27 kernel: Code: 85 c0 74 08 e9 3c 8a 78 e2 31 c0 c3 b8
a1 ff ff ff c3 b8 ed ff ff ff c3 66 66 2e 0f 1f 84 00 00 00 00 00 66
90 0f 1f 44 00 00 <48> 8b 87 68 03 00 00 48 83 c0 08 c3 66 66 2e 0f 1f
84 00 00 00 00
Jun 01 16:17:27 kernel: RSP: 0018:ffffa67542123e00 EFLAGS: 00010293
Jun 01 16:17:27 kernel: RAX: 0000000000000000 RBX: ffff8e9485a56800
RCX: 0000000000000000
Jun 01 16:17:27 kernel: RDX: 0000000000000000 RSI: 0000000000000246
RDI: 0000000000000000
Jun 01 16:17:27 kernel: RBP: 0000000000000000 R08: ffff8e949ebdbdc0
R09: 0000000000000000
Jun 01 16:17:27 kernel: R10: 0000000000000000 R11: 0000000000000000
R12: 0000000000000000
Jun 01 16:17:27 kernel: R13: ffff8e9499237540 R14: ffff8e9485a56ac0
R15: ffff8e9485a56800
Jun 01 16:17:27 kernel: FS: 0000000000000000(0000)
GS:ffff8e949ebc0000(0000) knlGS:0000000000000000
Jun 01 16:17:27 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 01 16:17:27 kernel: CR2: 0000000000000368 CR3: 00000001c8a0a003
CR4: 00000000003606e0
Jun 01 16:17:27 kernel: Call Trace:
Jun 01 16:17:27 kernel: ucsi_altmode_update_active+0x85/0x100 [typec_ucsi]
Jun 01 16:17:27 kernel: ucsi_init+0x398/0x590 [typec_ucsi]
Jun 01 16:17:27 kernel: process_one_work+0x1eb/0x410
Jun 01 16:17:27 kernel: worker_thread+0x2d/0x3d0
Jun 01 16:17:27 kernel: ? process_one_work+0x410/0x410
Jun 01 16:17:27 kernel: kthread+0x112/0x130
Jun 01 16:17:27 kernel: ? kthread_park+0x80/0x80
Jun 01 16:17:27 kernel: ret_from_fork+0x35/0x40
Jun 01 16:17:27 kernel: Modules linked in: bnep arc4 sunrpc iwlmvm
rtsx_usb_ms btusb memstick btrtl cdc_ether btbcm usbnet btintel
uvcvideo r8152 bluetooth mii snd_hda_codec_hdmi mac80211
videobuf2_vmalloc videobuf2_memops snd_soc_skl intel_rapl
videobuf2_v4l2 snd_soc_hdac_hda videobuf2_common x86_pkg_temp_thermal
intel_powerclamp videodev snd_hda_ext_core snd_soc_skl_ipc
snd_soc_sst_ipc coretemp ecdh_generic media ecc snd_hda_codec_realtek
kvm_intel snd_soc_sst_dsp snd_soc_acpi_intel_match joydev snd_soc_acpi
snd_hda_codec_generic snd_soc_core fuse iwlwifi mousedev ledtrig_audio
mei_hdcp kvm snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel
iTCO_wdt iTCO_vendor_support cfg80211 snd_hda_codec snd_hda_core
snd_hwdep hid_multitouch snd_pcm irqbypass snd_timer intel_cstate
intel_uncore snd idma64 intel_rapl_perf psmouse mei_me ucsi_acpi
typec_ucsi pcspkr input_leds intel_wmi_thunderbolt intel_lpss_pci mei
intel_xhci_usb_role_switch soundcore rfkill i2c_i801 wmi_bmof
intel_pch_thermal intel_lpss roles
Jun 01 16:17:27 kernel: typec i2c_hid intel_hid battery sparse_keymap
ac evdev mac_hid pcc_cpufreq nf_log_ipv6 ip6t_REJECT nf_reject_ipv6
xt_hl ip6t_rt nf_log_ipv4 nf_log_common ipt_REJECT nf_reject_ipv4
xt_LOG xt_multiport xt_CT iptable_raw xt_limit xt_addrtype xt_tcpudp
xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns
nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c iptable_filter vboxnetflt(OE)
vboxnetadp(OE) vboxpci(OE) vboxdrv(OE) vboxvideo ttm vboxsf(OE)
vboxguest uinput sg crypto_user acpi_call(OE) ip_tables x_tables ext4
crc32c_generic crc16 mbcache jbd2 algif_skcipher af_alg hid_apple
hid_generic usbhid hid rtsx_usb_sdmmc mmc_core rtsx_usb uas
usb_storage dm_crypt dm_mod nls_iso8859_1 nls_cp437 sd_mod
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel serio_raw atkbd
libps2 aesni_intel ahci libahci libata aes_x86_64 xhci_pci crypto_simd
cryptd glue_helper xhci_hcd scsi_mod i8042 tpm_crb serio tpm_tis wmi
tpm_tis_core
Jun 01 16:17:27 kernel: crc32c_intel vfat fat tpm rng_core i915
i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt
fb_sys_fops drm intel_agp intel_gtt agpgart
Jun 01 16:17:27 kernel: CR2: 0000000000000368
Jun 01 16:17:27 kernel: ---[ end trace 05c2c0e558309d1c ]---
Jun 01 16:17:27 kernel: RIP: 0010:typec_altmode_get_partner+0x5/0x20 [typec]
Jun 01 16:17:27 kernel: Code: 85 c0 74 08 e9 3c 8a 78 e2 31 c0 c3 b8
a1 ff ff ff c3 b8 ed ff ff ff c3 66 66 2e 0f 1f 84 00 00 00 00 00 66
90 0f 1f 44 00 00 <48> 8b 87 68 03 00 00 48 83 c0 08 c3 66 66 2e 0f 1f
84 00 00 00 00
Jun 01 16:17:27 kernel: RSP: 0018:ffffa67542123e00 EFLAGS: 00010293
Jun 01 16:17:27 kernel: RAX: 0000000000000000 RBX: ffff8e9485a56800
RCX: 0000000000000000
Jun 01 16:17:27 kernel: RDX: 0000000000000000 RSI: 0000000000000246
RDI: 0000000000000000
Jun 01 16:17:27 kernel: RBP: 0000000000000000 R08: ffff8e949ebdbdc0
R09: 0000000000000000
Jun 01 16:17:27 kernel: R10: 0000000000000000 R11: 0000000000000000
R12: 0000000000000000
Jun 01 16:17:27 kernel: R13: ffff8e9499237540 R14: ffff8e9485a56ac0
R15: ffff8e9485a56800
Jun 01 16:17:27 kernel: FS: 0000000000000000(0000)
GS:ffff8e949ebc0000(0000) knlGS:0000000000000000
Jun 01 16:17:27 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 01 16:17:27 kernel: CR2: 0000000000000368 CR3: 00000001c8a0a003
CR4: 00000000003606e0
inxi -Fxz
----------------------------------------------------------------------------------------------------------
System: Host: <HOSTNAME> Kernel: 5.1.5-1-MANJARO x86_64 bits: 64
compiler: gcc v: 8.3.0
Desktop: KDE Plasma 5.15.5 Distro: Manjaro Linux
Machine: Type: Laptop System: Timi product: TM1701 v: N/A serial: <filter>
Mobo: Timi model: TM1701 v: MP serial: <filter> UEFI:
INSYDE v: XMAKB5R0P0906
date: 10/23/2018
Battery: ID-1: BAT0 charge: 54.3 Wh condition: 54.3/60.0 Wh (90%)
model: SUNWODA R15B01W
status: Full
CPU: Topology: Quad Core model: Intel Core i7-8550U bits: 64
type: MT MCP arch: Kaby Lake
rev: A L2 cache: 8192 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3
vmx bogomips: 31880
Speed: 3034 MHz min/max: 400/4000 MHz Core speeds (MHz): 1:
2700 2: 2700 3: 2700
4: 2700 5: 2700 6: 2700 7: 2700 8: 2700
Graphics: Device-1: Intel UHD Graphics 620 vendor: Xiaomi driver:
i915 v: kernel bus ID: 00:02.0
Device-2: NVIDIA GP108M [GeForce MX150] driver: N/A bus ID: 01:00.0
Display: x11 server: X.Org 1.20.4 driver: intel
resolution: 1920x1080~60Hz, 1920x1080~60Hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake
GT2) v: 4.5 Mesa 19.0.5
direct render: Yes
Audio: Device-1: Intel Sunrise Point-LP HD Audio vendor: Xiaomi
driver: snd_hda_intel
v: kernel bus ID: 00:1f.3
Sound Server: ALSA v: k5.1.5-1-MANJARO
Network: Device-1: Intel Wireless 8265 / 8275 driver: iwlwifi v:
kernel port: 4040
bus ID: 02:00.0
IF: wlp2s0 state: up mac: <filter>
Device-2: Realtek RTL8153 Gigabit Ethernet Adapter type:
USB driver: r8152
bus ID: 2-1.1:3
--
----
Best regards,
Vladimir Yerilov
