Public bug reported:
When notebook is in docking station the kernel crashes after bootup and logon
in GDM.
If notebook is in standalone mode without any external devices connected
everything works.
Tried to step back to Kernel 4.15.0-43-generic and everything works like
a charm.
Description: Ubuntu 18.04.1 LTS
Release: 18.04
# apt-cache policy linux-image-4.15.0-44-generic
linux-image-4.15.0-44-generic:
Installed: 4.15.0-44.47
Candidate: 4.15.0-44.47
Version table:
*** 4.15.0-44.47 500
500 http://at.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
500 http://security.ubuntu.com/ubuntu bionic-security/main amd64
Packages
100 /var/lib/dpkg/status
/var/log/syslog reports a Kernel BUG...
Jan 30 10:18:41 bexlt036 kernel: [ 34.993161] BUG: unable to handle kernel
NULL pointer dereference at 0000000000000245
Jan 30 10:18:41 bexlt036 kernel: [ 34.993215] IP:
intel_ddi_post_disable+0x54/0x170 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993217] PGD 0 P4D 0
Jan 30 10:18:41 bexlt036 kernel: [ 34.993222] Oops: 0000 [#1] SMP PTI
Jan 30 10:18:41 bexlt036 kernel: [ 34.993225] Modules linked in: ccm
xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat
nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
libcrc32c ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter
ebtables ip6table_filter ip6_tables devlink iptable_filter cmac bnep btusb
btrtl btbcm cdc_mbim btintel cdc_wdm bluetooth cdc_ncm usbnet uvcvideo cdc_acm
mii ecdh_generic joydev arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp kvm_intel snd_hda_codec_hdmi kvm snd_hda_codec_realtek
snd_hda_codec_generic irqbypass snd_hda_intel intel_cstate snd_hda_codec
intel_rapl_perf snd_hda_core snd_hwdep thinkpad_acpi snd_pcm nvram rmi_smbus
iwlmvm rmi_core input_leds videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
mac80211 snd_seq_midi
Jan 30 10:18:41 bexlt036 kernel: [ 34.993282] videobuf2_core serio_raw
videodev snd_seq_midi_event media iwlwifi snd_rawmidi wmi_bmof snd_seq
rtsx_pci_ms memstick snd_seq_device cfg80211 snd_timer snd mei_me soundcore mei
mac_hid lpc_ich shpchp ie31200_edac sch_fq_codel sunrpc parport_pc ppdev lp
parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt
hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid crct10dif_pclmul
crc32_pclmul ghash_clmulni_intel pcbc rtsx_pci_sdmmc i915 ahci aesni_intel
i2c_algo_bit e1000e aes_x86_64 drm_kms_helper crypto_simd glue_helper cryptd
psmouse syscopyarea libahci sysfillrect sysimgblt fb_sys_fops drm ptp i2c_i801
rtsx_pci pps_core wmi video
Jan 30 10:18:41 bexlt036 kernel: [ 34.993339] CPU: 2 PID: 2890 Comm: Xorg Not
tainted 4.15.0-44-generic #47-Ubuntu
Jan 30 10:18:41 bexlt036 kernel: [ 34.993341] Hardware name: LENOVO
20BE00B5GE/20BE00B5GE, BIOS GMET66WW (2.14 ) 07/01/2014
Jan 30 10:18:41 bexlt036 kernel: [ 34.993375] RIP:
0010:intel_ddi_post_disable+0x54/0x170 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993377] RSP: 0018:ffffa739c28ef9f0
EFLAGS: 00010297
Jan 30 10:18:41 bexlt036 kernel: [ 34.993380] RAX: 0000000000000007 RBX:
ffff95550026e000 RCX: ffffffffc054f272
Jan 30 10:18:41 bexlt036 kernel: [ 34.993383] RDX: 0000000000000000 RSI:
0000000000000000 RDI: ffff95550026e000
Jan 30 10:18:41 bexlt036 kernel: [ 34.993385] RBP: ffffa739c28efa20 R08:
0000000000000000 R09: 0000000000000000
Jan 30 10:18:41 bexlt036 kernel: [ 34.993387] R10: 0000000000000047 R11:
000000000000028f R12: 0000000000000000
Jan 30 10:18:41 bexlt036 kernel: [ 34.993390] R13: ffff95550026e000 R14:
ffff9554ffef8000 R15: ffff9554ffa62000
Jan 30 10:18:41 bexlt036 kernel: [ 34.993393] FS: 00007fbfc6b5b600(0000)
GS:ffff95551e280000(0000) knlGS:0000000000000000
Jan 30 10:18:41 bexlt036 kernel: [ 34.993395] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jan 30 10:18:41 bexlt036 kernel: [ 34.993398] CR2: 0000000000000245 CR3:
00000003bc132003 CR4: 00000000001606e0
Jan 30 10:18:41 bexlt036 kernel: [ 34.993400] Call Trace:
Jan 30 10:18:41 bexlt036 kernel: [ 34.993432] ? intel_dp_sink_dpms+0xbb/0xf0
[i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993462]
intel_mst_post_disable_dp+0x99/0xd0 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993494]
intel_encoders_post_disable.isra.102+0x66/0x80 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993523]
haswell_crtc_disable+0xe8/0x150 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993552]
intel_atomic_commit_tail+0x7ea/0xd30 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993580]
intel_atomic_commit+0x277/0x2b0 [i915]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993598] drm_atomic_commit+0x51/0x60
[drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993609]
drm_atomic_helper_set_config+0x7c/0x90 [drm_kms_helper]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993625]
__drm_mode_set_config_internal+0x6b/0x120 [drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993639] drm_mode_setcrtc+0x47f/0x660
[drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993653] ? drm_mode_getcrtc+0x190/0x190
[drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993666] drm_ioctl_kernel+0x5f/0xb0
[drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993679] drm_ioctl+0x31b/0x3d0 [drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993691] ? drm_mode_getcrtc+0x190/0x190
[drm]
Jan 30 10:18:41 bexlt036 kernel: [ 34.993697] do_vfs_ioctl+0xa8/0x630
Jan 30 10:18:41 bexlt036 kernel: [ 34.993701] ? handle_mm_fault+0xb1/0x1f0
Jan 30 10:18:41 bexlt036 kernel: [ 34.993706] ? __do_page_fault+0x270/0x4d0
Jan 30 10:18:41 bexlt036 kernel: [ 34.993710] SyS_ioctl+0x79/0x90
Jan 30 10:18:41 bexlt036 kernel: [ 34.993714] do_syscall_64+0x73/0x130
Jan 30 10:18:41 bexlt036 kernel: [ 34.993719]
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Jan 30 10:18:41 bexlt036 kernel: [ 34.993722] RIP: 0033:0x7fbfc3f5c5d7
Jan 30 10:18:41 bexlt036 kernel: [ 34.993724] RSP: 002b:00007ffd9d17bb88
EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Jan 30 10:18:41 bexlt036 kernel: [ 34.993728] RAX: ffffffffffffffda RBX:
00007ffd9d17bbc0 RCX: 00007fbfc3f5c5d7
Jan 30 10:18:41 bexlt036 kernel: [ 34.993730] RDX: 00007ffd9d17bbc0 RSI:
00000000c06864a2 RDI: 000000000000000c
Jan 30 10:18:41 bexlt036 kernel: [ 34.993733] RBP: 00007ffd9d17bbc0 R08:
0000000000000000 R09: 000055b5d0381800
Jan 30 10:18:41 bexlt036 kernel: [ 34.993735] R10: 00007ffd9d17bd40 R11:
0000000000000246 R12: 00000000c06864a2
Jan 30 10:18:41 bexlt036 kernel: [ 34.993737] R13: 000000000000000c R14:
000055b5cf8736f0 R15: 000055b5cf6f0670
Jan 30 10:18:41 bexlt036 kernel: [ 34.993740] Code: 0d f6 86 44 02 00 00 40
0f 85 81 00 00 00 83 f8 06 72 77 83 f8 08 76 13 83 f8 0a 75 6d 41 f6 86 60 06
00 00 40 0f 84 dd 00 00 00 <41> f6 84 24 45 02 00 00 08 4d 8d bd 00 01 00 00 74
3e 48 89 df
Jan 30 10:18:41 bexlt036 kernel: [ 34.993817] RIP:
intel_ddi_post_disable+0x54/0x170 [i915] RSP: ffffa739c28ef9f0
Jan 30 10:18:41 bexlt036 kernel: [ 34.993819] CR2: 0000000000000245
Jan 30 10:18:41 bexlt036 kernel: [ 34.993842] ---[ end trace 9f26fbba62836c08
]---
** Affects: linux-signed (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1813902
Title:
Lenovo Thinkpad T540p - Kernel Crash 4.15.0-44 (18.04 LTS)
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