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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [IGT] igt@* dmesg-warn watchdog: BUG: soft lockup - CPU#1 stuck for 23s!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103738#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [IGT] igt@* dmesg-warn watchdog: BUG: soft lockup - CPU#1 stuck for 23s!"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=103738">bug 103738</a>
              from <span class="vcard"><a class="email" href="mailto:hector.franciscox.velazquez.suriano@intel.com" title="Hector Velazquez <hector.franciscox.velazquez.suriano@intel.com>"> <span class="fn">Hector Velazquez</span></a>
</span></b>
        <pre>This test have a dmesg-warn on CFL QA

igt@gem_exec_reloc@cpu-32
igt@gem_exec_reloc@readonly-32
igt@gem_reloc_overflow@wrapped-overflow

====================================================
dmesg-warn Sample
====================================================
[  234.116432] Setting dangerous option reset - tainting kernel
[  260.176003] watchdog: BUG: soft lockup - CPU#1 stuck for 23s!
[gem_exec_reloc:1940]
[  260.176006] Modules linked in: snd_hda_codec_hdmi pegasus mii
ip6table_filter ip6_tables iptable_filter bnep snd_hda_codec_realtek
snd_hda_codec_generic binfmt_misc nls_iso8859_1 intel_rapl 8250_dw
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_intel kvm
snd_hda_codec irqbypass snd_hda_core crct10dif_pclmul snd_hwdep crc32_pclmul
ghash_clmulni_intel snd_pcm pcbc snd_seq_midi snd_seq_midi_event snd_rawmidi
aesni_intel aes_x86_64 snd_seq crypto_simd glue_helper btusb cryptd btrtl
idma64 btbcm virt_dma intel_cstate btintel iwlwifi snd_seq_device bluetooth
snd_timer intel_rapl_perf input_leds intel_lpss_pci snd ecdh_generic cfg80211
wmi_bmof serio_raw soundcore intel_lpss acpi_als kfifo_buf industrialio
soc_button_array winbond_cir rc_core spidev tpm_crb acpi_pad intel_hid mac_hid
sparse_keymap
[  260.176059]  parport_pc ppdev lp parport ip_tables x_tables autofs4
hid_generic usbhid i915 i2c_algo_bit prime_numbers drm_kms_helper syscopyarea
e1000e sysfillrect sysimgblt fb_sys_fops ahci ptp pps_core libahci drm wmi
video i2c_hid hid
[  260.176068] CPU: 1 PID: 1940 Comm: gem_exec_reloc Tainted: G     U         
4.14.0-rc8-drm-tip-ww45-commit-1342299+ #1
[  260.176069] Hardware name: Intel Corporation CoffeeLake Client
Platform/CoffeeLake H DDR4 RVP, BIOS CNLSFWR1.R00.X098.A00.1707301945
07/30/2017
[  260.176084] task: ffff9dbeff0f6c80 task.stack: ffffc0fc05a00000
[  260.176115] RIP: 0010:i915_exit+0x49/0x13b [i915]
[  260.176116] RSP: 0018:ffffc0fc05a038a8 EFLAGS: 00050246 ORIG_RAX:
ffffffffffffff10
[  260.176117] RAX: 0000000000000000 RBX: ffffc0fc05a03b40 RCX:
0000000000000000
[  260.176117] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
0000000000000ff8
[  260.176117] RBP: ffffc0fc05a03af0 R08: 000000000536d1b3 R09:
0000000000001000
[  260.176118] R10: ffff9dbf047163c0 R11: 0000000000000000 R12:
ffff9dbf047163c0
[  260.176118] R13: 00007f6001e2b810 R14: 00007f6001e2b670 R15:
ffffc0fc05a03920
[  260.176119] FS:  00007f605dc73880(0000) GS:ffff9dbf0b240000(0000)
knlGS:0000000000000000
[  260.176119] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  260.176120] CR2: 00007f6001e2b670 CR3: 0000000842a8b006 CR4:
00000000003606e0
[  260.176120] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  260.176121] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[  260.176121] Call Trace:
[  260.176134]  i915_gem_do_execbuffer+0x55e/0x1060 [i915]
[  260.176137]  ? shmem_getpage_gfp+0x735/0xc00
[  260.176139]  ? get_page_from_freelist+0x24e/0xaa0
[  260.176140]  ? get_page_from_freelist+0x24e/0xaa0
[  260.176141]  ? __kmalloc_node+0x1e6/0x2b0
[  260.176151]  i915_gem_execbuffer2+0x1b0/0x390 [i915]
[  260.176153]  ? find_next_bit+0xb/0x10
[  260.176155]  ? cpumask_any_but+0x2c/0x40
[  260.176165]  ? i915_gem_execbuffer+0x2c0/0x2c0 [i915]
[  260.176171]  drm_ioctl_kernel+0x69/0xb0 [drm]
[  260.176175]  drm_ioctl+0x340/0x450 [drm]
[  260.176185]  ? i915_gem_execbuffer+0x2c0/0x2c0 [i915]
[  260.176187]  do_vfs_ioctl+0xa1/0x5e0
[  260.176188]  SyS_ioctl+0x79/0x90
[  260.176189]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[  260.176190] RIP: 0033:0x7f605c1834b7
[  260.176190] RSP: 002b:00007ffe6ff901a8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[  260.176191] RAX: ffffffffffffffda RBX: 0000000000000003 RCX:
00007f605c1834b7
[  260.176192] RDX: 00007ffe6ff90260 RSI: 0000000040406469 RDI:
0000000000000003
[  260.176192] RBP: 00007f5f5b088000 R08: ffffffffffffffff R09:
0000000000000000
[  260.176192] R10: 0000000000000487 R11: 0000000000000246 R12:
0000000100000000
[  260.176193] R13: 00007ffe6ff90220 R14: 0000000000000100 R15:
0000000008000000
[  260.176193] Code: ff ff ff e9 a8 89 f1 ff b9 f2 ff ff ff e9 af 89 f1 ff b8
f2 ff ff ff 40 30 f6 e9 d3 b1 f2 ff b8 f2 ff ff ff 30 d2 e9 d8 b1 f2 ff <ba> f2
ff ff ff e9 df cb f2 ff b8 f2 ff ff ff e9 91 d0 f2 ff b8

This is my configuration:

======================================
        Graphic stack
======================================
Component: drm
    tag: libdrm-2.4.81-96-g931f019
    commit: 931f01964a2f2a75e8563feccc70ac2eb0296d99

Component: cairo
    tag: 1.15.6-82-g164be89
    commit: 164be896603ceb419c5bc47c7348781f791f70e4

Component: intel-gpu-tools
    tag: intel-gpu-tools-1.19-481-g7d75119
    commit: 7d75119b7f23fb49af52463da9bcd62e64fe6a6f

Component: piglit
    tag: piglit-v1
    commit: 733e3ab212fcce735f47ed9f8659ccdf6f625a70

======================================
             Software
======================================
kernel version              : 4.14.0-rc8-drm-tip-ww45-commit-1342299+
hostname                    : gfx-desktop
architecture                : x86_64
os version                  : Ubuntu 16.10
os codename                 : yakkety
kernel driver               : i915
bios revision               : 98.0
bios release date           : 07/30/2017
ksc                         : 1.5
hardware acceleration       : disabled
swap partition              : enabled on (/dev/sda3)

======================================
        Graphic drivers
======================================
libdrm                      : 2.4.88
cairo                       : 1.15.9
intel-gpu-tools (tag)       : intel-gpu-tools-1.19-481-g7d75119
intel-gpu-tools (commit)    : 7d75119

======================================
             Hardware
======================================
motherboard model          : CoffeeLakeClientPlatform
motherboard id             : CoffeeLakeHDDR4RVP
form factor                : Laptop
manufacturer               : IntelCorporation
cpu family                 : Other
cpu family id              : 6
cpu information            : Genuine Intel(R) CPU 0000 @ 2.80GHz
gpu card                   : Intel Corporation Device 3e9b (prog-if 00 [VGA
controller])
memory ram                 : 31.3 GB
max memory ram             : 32 GB
cpu thread                 : 12
cpu core                   : 6
cpu model                  : 158
cpu stepping               : 10
socket                     : Other
hard drive                 : 74GiB (80GB)
current cd clock frequency : 337500 kHz
maximum cd clock frequency : 675000 kHz
displays connected         : DP-1 DP-2 DP-3

======================================
             Firmware
======================================
dmc fw loaded             : yes
dmc version               : 1.1
guc fw loaded             : fetch SUCCESS, load SUCCESS
guc version wanted        : wanted 9.14, found 9.14
guc version found         : wanted 9.14, found 9.14

======================================
             kernel parameters
======================================
quiet splash drm.debug=0xe intel_iommu=igfx_off i915.alpha_support=1
i915.enable_guc_loading=2 i915.enable_guc_submission=2 resume=/dev/sda3</pre>
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