[Bug 94534] Kernel 4.5.0 crashes when docking Lenovo T450s (with external monitor connected): GPF(drm_dp_payload_send_msg)
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Apr 22 13:30:25 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94534
cs_gon at yahoo.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |NEW
--- Comment #9 from cs_gon at yahoo.com ---
I have tested with the current drm-intel-nightly branch. So far (after about 30
mins of testing) I haven't been able to reproduce the crash when only one
external monitor is connected to the docking station, but with two external
monitors I still ran into the same problem:
[ 6434.242848] BUG: unable to handle kernel NULL pointer dereference at
0000000000000028
[ 6434.242893] IP: [<ffffffffc01559c5>]
drm_dp_get_last_connected_port_to_mstb+0x5/0x30 [drm_kms_helper]
[ 6434.242950] PGD 0
[ 6434.242963] Oops: 0000 [#1] SMP
[ 6434.242981] Modules linked in: hid_cherry hid_generic usbhid hid
usb_serial_simple usbserial des_generic md4 nls_utf8 cifs fscache drbg
ansi_cprng ctr ccm ip6t_REJECT nf_reject_ipv6 ip6table_filter ip6_tables
iptable_nat nf_nat_ipv4 nf_nat xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4
ipt_REJECT nf_reject_ipv4 xt_conntrack iptable_filter ip_tables x_tables
dm_crypt cmac rfcomm bnep arc4 intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp kvm_intel binfmt_misc kvm iwlmvm irqbypass mac80211 crct10dif_pclmul
crc32_pclmul ghash_clmulni_intel iwlwifi cdc_acm aesni_intel aes_x86_64 lrw
gf128mul glue_helper ablk_helper cryptd cfg80211 cdc_mbim cdc_wdm cdc_ncm
joydev usbnet input_leds mii serio_raw btusb btrtl rtsx_pci_ms btbcm memstick
btintel snd_hda_codec_realtek intel_pch_thermal snd_hda_codec_generic
[ 6434.243399] bluetooth lpc_ich snd_hda_codec_hdmi shpchp snd_hda_intel
snd_hda_codec parport_pc snd_hda_core thinkpad_acpi ppdev nvram
nf_conntrack_ftp nf_conntrack snd_hwdep snd_pcm lp parport snd_timer mei_me
mac_hid snd soundcore mei rtsx_pci_sdmmc i915 psmouse i2c_algo_bit
drm_kms_helper syscopyarea ahci sysfillrect sysimgblt e1000e libahci
fb_sys_fops rtsx_pci drm ptp pps_core wmi fjes video
[ 6434.243582] CPU: 2 PID: 1495 Comm: Xorg Tainted: G W 4.6.0-rc4+
#1
[ 6434.243613] Hardware name: LENOVO 20BWS00V00/20BWS00V00, BIOS JBET51WW (1.16
) 07/08/2015
[ 6434.243648] task: ffff88034adbc740 ti: ffff88034bf98000 task.ti:
ffff88034bf98000
[ 6434.243689] RIP: 0010:[<ffffffffc01559c5>] [<ffffffffc01559c5>]
drm_dp_get_last_connected_port_to_mstb+0x5/0x30 [drm_kms_helper]
[ 6434.243762] RSP: 0018:ffff88034bf9ba20 EFLAGS: 00010286
[ 6434.243787] RAX: ffff88034adbc740 RBX: 0000000000000000 RCX:
0000000000000000
[ 6434.243816] RDX: ffff88032833eeb8 RSI: 0000000000000000 RDI:
0000000000000000
[ 6434.243846] RBP: ffff88034bf9ba78 R08: 000000000001a040 R09:
ffffffffc0159eea
[ 6434.243888] R10: ffff88035dc9a040 R11: ffffea000c292000 R12:
ffff880349fac658
[ 6434.243925] R13: ffff8802fad05800 R14: ffff880349fac910 R15:
ffff8802fad05c38
[ 6434.243959] FS: 00007f217ed298c0(0000) GS:ffff88035dc80000(0000)
knlGS:0000000000000000
[ 6434.243999] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6434.244034] CR2: 0000000000000028 CR3: 000000034be4b000 CR4:
00000000003406e0
[ 6434.244065] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 6434.244097] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 6434.244130] Stack:
[ 6434.244140] ffffffffc0159f4c 0000000000000000 ffff880300000003
ffffffffc0153c00
[ 6434.244177] 00000009000002c0 00000000385f3add 0000000000000001
ffff880349fac658
[ 6434.244215] 0000000000000001 ffff880349570350 ffff8802fad05c38
ffff88034bf9bac0
[ 6434.244253] Call Trace:
[ 6434.244273] [<ffffffffc0159f4c>] ? drm_dp_payload_send_msg+0x14c/0x1c0
[drm_kms_helper]
[ 6434.244316] [<ffffffffc0153c00>] ?
drm_dp_link_train_channel_eq_delay+0x20/0x40 [drm_kms_helper]
[ 6434.244374] [<ffffffffc015a51c>] drm_dp_update_payload_part2+0xcc/0x130
[drm_kms_helper]
[ 6434.244420] [<ffffffffc0153d2b>] ? drm_dp_dpcd_read+0x1b/0x20
[drm_kms_helper]
[ 6434.244486] [<ffffffffc025ce92>] intel_mst_enable_dp+0x122/0x1b0 [i915]
[ 6434.244547] [<ffffffffc023c79e>] haswell_crtc_enable+0x34e/0x900 [i915]
[ 6434.244606] [<ffffffffc0237660>] intel_atomic_commit+0x1380/0x1fb0 [i915]
[ 6434.244660] [<ffffffffc00635b7>] ?
drm_atomic_set_crtc_for_connector+0x57/0xe0 [drm]
[ 6434.244713] [<ffffffffc0064227>] drm_atomic_commit+0x37/0x60 [drm]
[ 6434.244751] [<ffffffffc015e57b>] drm_atomic_helper_set_config+0x7b/0xb0
[drm_kms_helper]
[ 6434.244807] [<ffffffffc00541e4>] drm_mode_set_config_internal+0x64/0x100
[drm]
[ 6434.244857] [<ffffffffc0057d0d>] drm_mode_setcrtc+0xdd/0x500 [drm]
[ 6434.244899] [<ffffffffc0049b2d>] drm_ioctl+0x25d/0x4f0 [drm]
[ 6434.244940] [<ffffffffc0057c30>] ? drm_mode_setplane+0x1c0/0x1c0 [drm]
[ 6434.244977] [<ffffffff81221376>] do_vfs_ioctl+0x96/0x590
[ 6434.245007] [<ffffffff8108cf52>] ? __set_task_blocked+0x32/0x80
[ 6434.245040] [<ffffffff81210951>] ? __sb_end_write+0x21/0x30
[ 6434.245080] [<ffffffff8108f5d6>] ? __set_current_blocked+0x36/0x60
[ 6434.245112] [<ffffffff812218e9>] SyS_ioctl+0x79/0x90
[ 6434.245138] [<ffffffff8108f866>] ? SyS_rt_sigprocmask+0x86/0xb0
[ 6434.245170] [<ffffffff817ff536>] entry_SYSCALL_64_fastpath+0x1e/0xa8
[ 6434.245200] Code: 00 00 ba 80 ff ff ff eb c1 ba 04 00 00 00 01 c0 89 c1 83
f1 13 a8 10 0f 45 c1 83 ea 01 75 ef 5d c3 0f 1f 44 00 00 0f 1f 44 00 00 <48> 8b
47 28 48 85 c0 74 06 48 39 78 20 74 01 c3 55 48 8b b8 30
[ 6434.245346] RIP [<ffffffffc01559c5>]
drm_dp_get_last_connected_port_to_mstb+0x5/0x30 [drm_kms_helper]
[ 6434.247571] RSP <ffff88034bf9ba20>
[ 6434.249750] CR2: 0000000000000028
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