complete freeze

[boris Vano]

Hi all,
Thanks for the great work!:)

freeze details:

no response to: Alt+SysRq+1 (one, not L) followed by Alt+SysRq+t

hope kern.log output by itself is enough


Please let me know if I can do/share anything else.



uname:
Linux me-Latitude-E7450 4.4.0-97-generic #120-Ubuntu SMP Tue Sep 19
17:28:18 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux


kern.log snipp(after restart):

Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289453] ------------[ cut
here ]------------
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289477] WARNING: CPU: 2
PID: 1126 at
/build/linux-Pcn0xK/linux-4.4.0/drivers/gpu/drm/i915/intel_uncore.c:619
hsw_unclaimed_reg_debug+0x69/0x90 [i915]()
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289479] Unclaimed register
detected after reading register 0x223a0
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289479] Modules linked in:
btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c
hid_logitech_hidpp hid_logitech_dj usbhid uas usb_storage nvram msr
pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm ctr
ccm drbg ansi_cprng bnep btusb btrtl btbcm btintel bluetooth uvcvideo
videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core
v4l2_common videodev media ipt_MASQUERADE nf_nat_masquerade_ipv4
iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype
iptable_filter ip_tables xt_conntrack x_tables nf_nat nf_conntrack
br_netfilter bridge stp llc aufs dell_wmi sparse_keymap dell_laptop dcdbas
dell_smm_hwmon intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm snd_hda_codec_hdmi irqbypass crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel snd_hda_codec_realtek arc4
snd_hda_codec_generic aes_x86_64 lrw gf128mul glue_helper ablk_helper
cryptd snd_soc_rt5640 iwlmvm snd_hda_intel snd_soc_rl6231 snd_hda_codec
snd_soc_ssm4567 snd_hda_core mac80211 snd_soc_core snd_hwdep input_leds
joydev serio_raw lpc_ich snd_compress ac97_bus snd_pcm_dmaengine
snd_seq_midi snd_seq_midi_event snd_pcm iwlwifi snd_rawmidi cfg80211 mei_me
mei shpchp int3403_thermal snd_seq snd_seq_device 8250_fintek snd_timer snd
dell_smo8800 elan_i2c soundcore snd_soc_sst_acpi dw_dmac dw_dmac_core
i2c_designware_platform i2c_designware_core 8250_dw int3402_thermal
spi_pxa2xx_platform acpi_als kfifo_buf processor_thermal_device
int340x_thermal_zone intel_soc_dts_iosf int3400_thermal acpi_thermal_rel
dell_rbtn acpi_pad mac_hid industrialio binfmt_misc parport_pc ppdev sunrpc
lp parport autofs4 i915 psmouse i2c_algo_bit ahci drm_kms_helper libahci
syscopyarea sysfillrect e1000e sysimgblt fb_sys_fops sdhci_pci drm ptp
pps_core wmi sdhci_acpi video sdhci fjes i2c_hid hid
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289543] CPU: 2 PID: 1126
Comm: Xorg Tainted: G           OE   4.4.0-97-generic #120-Ubuntu
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289544] Hardware name:
Dell Inc. Latitude E7450/06HN6G, BIOS A03 04/10/2015
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289545]  0000000000000086
3f42737a8573b4e6 ffff88041e503cd8 ffffffff813fabe3
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289547]  ffff88041e503d20
ffffffffc02b91e0 ffff88041e503d10 ffffffff810812e2
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289548]  ffff880405050000
00000000000223a0 0000000000000102 00000000000223a0
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289549] Call Trace:
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289550]  <IRQ>
[<ffffffff813fabe3>] dump_stack+0x63/0x90
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289556]
[<ffffffff810812e2>] warn_slowpath_common+0x82/0xc0
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289557]
[<ffffffff8108137c>] warn_slowpath_fmt+0x5c/0x80
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289571]
[<ffffffffc0231479>] hsw_unclaimed_reg_debug+0x69/0x90 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289582]
[<ffffffffc0233dc1>] gen6_read32+0xd1/0x1a0 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289595]
[<ffffffffc0227568>] intel_lrc_irq_handler+0x38/0x240 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289605]
[<ffffffffc008ee5a>] ? drm_handle_vblank+0x1ea/0x2b0 [drm]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289615]
[<ffffffffc01e3d27>] gen8_gt_irq_handler+0x217/0x240 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289625]
[<ffffffffc01e3df1>] gen8_irq_handler+0xa1/0x740 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289627]
[<ffffffff810db36d>] handle_irq_event_percpu+0x8d/0x1d0
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289629]
[<ffffffff810db4ee>] handle_irq_event+0x3e/0x60
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289630]
[<ffffffff810deb30>] handle_edge_irq+0x80/0x150
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289632]
[<ffffffff8103119d>] handle_irq+0x1d/0x30
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289634]
[<ffffffff818461db>] do_IRQ+0x4b/0xd0
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289637]
[<ffffffff818442c2>] common_interrupt+0x82/0x82
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289637]  <EOI>
[<ffffffffc02155fd>] ? __i915_add_request+0x10d/0x210 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289660]
[<ffffffffc0209bd6>] i915_gem_execbuffer_retire_commands+0x26/0x30 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289673]
[<ffffffffc02287bb>] intel_execlists_submission+0x2eb/0x410 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289683]
[<ffffffffc020966b>] i915_gem_do_execbuffer.isra.25+0x109b/0x12a0 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289695]
[<ffffffffc02136e1>] ? i915_gem_object_retire__write+0x51/0x90 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289705]
[<ffffffffc020a4e2>] i915_gem_execbuffer2+0xb2/0x240 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289716]
[<ffffffffc02170b2>] ? i915_gem_busy_ioctl+0x92/0xe0 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289723]
[<ffffffffc008c802>] drm_ioctl+0x152/0x540 [drm]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289734]
[<ffffffffc020a430>] ? i915_gem_execbuffer+0x310/0x310 [i915]
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289736]
[<ffffffff81223fbf>] do_vfs_ioctl+0x29f/0x490
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289738]
[<ffffffff81224229>] SyS_ioctl+0x79/0x90
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289740]
[<ffffffff818437f2>] entry_SYSCALL_64_fastpath+0x16/0x71
Oct 30 16:27:44 me-Latitude-E7450 kernel: [23838.289741] ---[ end trace
6c728536cc2df95c ]---
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