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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [IGT] igt@gem_exec/igt@gem_reloc/igt@sync some subtests has a dmesg-warn watchdog: BUG: soft lockup - CPU#1 stuck for 23s!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103738#c27">Comment # 27</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [IGT] igt@gem_exec/igt@gem_reloc/igt@sync some subtests has a 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:ricardo.o.perez@intel.com" title="Ricardo Perez <ricardo.o.perez@intel.com>"> <span class="fn">Ricardo Perez</span></a>
</span></b>
<pre>For the following test in CNL:
igt@gem_exec_reloc@cpu-31
Software version:
IGT-Version: 1.22-g0721161 (x86_64) (Linux:
4.16.0-rc6-drm-intel-qa-ww12-commit-4db112a+ x86_64)
Subtest cpu-31: SUCCESS (4.202s)
We are seeing the following dmesg-warn:
[ 562.977732] Setting dangerous option reset - tainting kernel
[ 567.865254] Setting dangerous option reset - tainting kernel
[ 577.855254] Setting dangerous option reset - tainting kernel
[ 579.573912] Setting dangerous option reset - tainting kernel
[ 604.039990] watchdog: BUG: soft lockup - CPU#3 stuck for 22s!
[gem_exec_reloc:2144]
[ 604.039997] Modules linked in: snd_hda_codec_hdmi bnep 8250_dw nls_iso8859_1
arc4 snd_soc_skl x86_pkg_temp_thermal intel_powerclamp snd_soc_skl_ipc coretemp
snd_soc_sst_ipc snd_soc_sst_dsp kvm_intel snd_hda_ext_core
snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic kvm snd_soc_core
snd_compress snd_pcm_dmaengine irqbypass ac97_bus crct10dif_pclmul iwlmvm
crc32_pclmul ghash_clmulni_intel pcbc mac80211 aesni_intel snd_hda_intel
aes_x86_64 crypto_simd glue_helper cryptd snd_hda_codec snd_hda_core snd_hwdep
snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi serio_raw snd_seq wmi_bmof
btusb btrtl snd_seq_device btbcm iwlwifi asix snd_timer btintel usbnet mii
bluetooth snd input_leds soundcore ecdh_generic idma64 shpchp virt_dma mei_me
intel_lpss_pci cfg80211 mei intel_pch_thermal intel_lpss acpi_pad
[ 604.040035] mac_hid parport_pc ppdev lp parport ip_tables x_tables autofs4
uas usb_storage hid_generic usbhid hid i915 dwc3 udc_core ulpi e1000e dwc3_pci
prime_numbers wmi video
[ 604.040049] CPU: 3 PID: 2144 Comm: gem_exec_reloc Tainted: G U W
4.16.0-rc6-drm-intel-qa-ww12-commit-4db112a+ #1
[ 604.040049] Hardware name: Intel Corporation CannonLake Client
Platform/CannonLake Y LPDDR4 RVP, BIOS CNLSFWR1.R00.X124.B02.1802051422
02/05/2018
[ 604.040086] RIP: 0010:i915_exit+0x44/0x3b7 [i915]
[ 604.040087] RSP: 0018:ffffbba98215f8d0 EFLAGS: 00050246 ORIG_RAX:
ffffffffffffff12
[ 604.040089] RAX: 0000000000000000 RBX: ffffbba98215fb58 RCX:
ffff9eb231e55004
[ 604.040090] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
0000000000000000
[ 604.040091] RBP: ffff9eb22d796100 R08: 0000000000001000 R09:
0000000001e2ed51
[ 604.040092] R10: ffff9eb22d796100 R11: 0000000000000001 R12:
00007f7ce694ac10
[ 604.040092] R13: 00007f7ce694aa30 R14: ffffbba98215f900 R15:
ffff9eb22d2295c0
[ 604.040094] FS: 00007f7ced73a8c0(0000) GS:ffff9eb23f980000(0000)
knlGS:0000000000000000
[ 604.040095] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 604.040095] CR2: 00007f7ce694aa30 CR3: 00000002af862002 CR4:
0000000000760ee0
[ 604.040096] PKRU: 55555554
[ 604.040097] Call Trace:
[ 604.040124] i915_gem_do_execbuffer+0x591/0x1020 [i915]
[ 604.040131] ? shmem_getpage_gfp+0x7a1/0xcf0
[ 604.040135] ? is_bpf_text_address+0xa/0x20
[ 604.040138] ? __save_stack_trace+0x92/0x100
[ 604.040140] ? create_object+0x24e/0x300
[ 604.040161] i915_gem_execbuffer2_ioctl+0xe7/0x340 [i915]
[ 604.040180] ? i915_gem_execbuffer_ioctl+0x2b0/0x2b0 [i915]
[ 604.040184] drm_ioctl_kernel+0x67/0xb0
[ 604.040186] drm_ioctl+0x2d4/0x3c0
[ 604.040205] ? i915_gem_execbuffer_ioctl+0x2b0/0x2b0 [i915]
[ 604.040208] ? vma_merge+0xc8/0x330
[ 604.040211] do_vfs_ioctl+0xa2/0x610
[ 604.040214] SyS_ioctl+0x74/0x80
[ 604.040217] do_syscall_64+0x6e/0x120
[ 604.040220] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 604.040222] RIP: 0033:0x7f7ceb91aef7
[ 604.040222] RSP: 002b:00007ffebad27fd8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 604.040224] RAX: ffffffffffffffda RBX: 0000000000000003 RCX:
00007f7ceb91aef7
[ 604.040225] RDX: 00007ffebad28090 RSI: 0000000040406469 RDI:
0000000000000003
[ 604.040225] RBP: 00007ffebad28090 R08: ffffffffffffffff R09:
0000000000000000
[ 604.040226] R10: 000000000000049e R11: 0000000000000246 R12:
0000000040406469
[ 604.040227] R13: 0000000000000003 R14: 00007ffebad28090 R15:
0000000002000000
[ 604.040228] Code: ff ff ff e9 75 11 f1 ff b9 f2 ff ff ff e9 7d 11 f1 ff b8
f2 ff ff ff 40 30 f6 e9 d3 3a f2 ff b8 f2 ff ff ff 30 d2 e9 db 3a f2 ff <ba> f2
ff ff ff e9 6b 55 f2 ff b8 f2 ff ff ff e9 1c 5a f2 ff b8
[ 641.307239] Setting dangerous option reset - tainting kernel
[ 643.512634] Setting dangerous option reset - tainting kernel
[ 653.165474] Setting dangerous option reset - tainting kernel
[ 673.001889] Setting dangerous option reset - tainting kernel
[ 676.264418] Setting dangerous option reset - tainting kernel
[ 700.039987] watchdog: BUG: soft lockup - CPU#2 stuck for 22s!
[gem_exec_reloc:9761]
[ 700.039992] Modules linked in: snd_hda_codec_hdmi bnep 8250_dw nls_iso8859_1
arc4 snd_soc_skl x86_pkg_temp_thermal intel_powerclamp snd_soc_skl_ipc coretemp
snd_soc_sst_ipc snd_soc_sst_dsp kvm_intel snd_hda_ext_core
snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic kvm snd_soc_core
snd_compress snd_pcm_dmaengine irqbypass ac97_bus crct10dif_pclmul iwlmvm
crc32_pclmul ghash_clmulni_intel pcbc mac80211 aesni_intel snd_hda_intel
aes_x86_64 crypto_simd glue_helper cryptd snd_hda_codec snd_hda_core snd_hwdep
snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi serio_raw snd_seq wmi_bmof
btusb btrtl snd_seq_device btbcm iwlwifi asix snd_timer btintel usbnet mii
bluetooth snd input_leds soundcore ecdh_generic idma64 shpchp virt_dma mei_me
intel_lpss_pci cfg80211 mei intel_pch_thermal intel_lpss acpi_pad
[ 700.040022] mac_hid parport_pc ppdev lp parport ip_tables x_tables autofs4
uas usb_storage hid_generic usbhid hid i915 dwc3 udc_core ulpi e1000e dwc3_pci
prime_numbers wmi video
[ 700.040032] CPU: 2 PID: 9761 Comm: gem_exec_reloc Tainted: G U W L
4.16.0-rc6-drm-intel-qa-ww12-commit-4db112a+ #1
[ 700.040033] Hardware name: Intel Corporation CannonLake Client
Platform/CannonLake Y LPDDR4 RVP, BIOS CNLSFWR1.R00.X124.B02.1802051422
02/05/2018
[ 700.040077] RIP: 0010:i915_exit+0x44/0x3b7 [i915]
[ 700.040077] RSP: 0018:ffffbba983da78d0 EFLAGS: 00050246 ORIG_RAX:
ffffffffffffff12
[ 700.040079] RAX: 0000000000000000 RBX: ffffbba983da7b58 RCX:
ffff9eb232a2d004
[ 700.040079] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
0000000000000000
[ 700.040080] RBP: ffff9eb201f1a400 R08: 0000000000001000 R09:
00000000021c42c8
[ 700.040081] R10: ffff9eb201f1a400 R11: 0000000000000001 R12:
00007f80c7a13a10
[ 700.040082] R13: 00007f80c7a13910 R14: ffffbba983da79e0 R15:
ffff9eb1d976d700
[ 700.040083] FS: 00007f81075588c0(0000) GS:ffff9eb23f900000(0000)
knlGS:0000000000000000
[ 700.040083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 700.040084] CR2: 00007f80c7a13910 CR3: 00000002af480006 CR4:
0000000000760ee0
[ 700.040085] PKRU: 55555554
[ 700.040085] Call Trace:
[ 700.040104] i915_gem_do_execbuffer+0x591/0x1020 [i915]
[ 700.040108] ? is_bpf_text_address+0xa/0x20
[ 700.040111] ? __save_stack_trace+0x92/0x100
[ 700.040113] ? create_object+0x24e/0x300
[ 700.040128] i915_gem_execbuffer2_ioctl+0xe7/0x340 [i915]
[ 700.040143] ? i915_gem_execbuffer_ioctl+0x2b0/0x2b0 [i915]
[ 700.040146] drm_ioctl_kernel+0x67/0xb0
[ 700.040147] drm_ioctl+0x2d4/0x3c0
[ 700.040161] ? i915_gem_execbuffer_ioctl+0x2b0/0x2b0 [i915]
[ 700.040164] ? vma_merge+0xc8/0x330
[ 700.040167] do_vfs_ioctl+0xa2/0x610
[ 700.040169] SyS_ioctl+0x74/0x80
[ 700.040171] do_syscall_64+0x6e/0x120
[ 700.040173] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 700.040174] RIP: 0033:0x7f8105738ef7
[ 700.040175] RSP: 002b:00007ffd7a1aef18 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ 700.040176] RAX: ffffffffffffffda RBX: 0000000000000003 RCX:
00007f8105738ef7
[ 700.040177] RDX: 00007ffd7a1aefd0 RSI: 0000000040406469 RDI:
0000000000000003
[ 700.040177] RBP: 00007ffd7a1aefd0 R08: ffffffffffffffff R09:
0000000000000000
[ 700.040178] R10: 000000000000049e R11: 0000000000000246 R12:
0000000040406469
[ 700.040179] R13: 0000000000000003 R14: 00007ffd7a1aefd0 R15:
0000000004000000
[ 700.040180] Code: ff ff ff e9 75 11 f1 ff b9 f2 ff ff ff e9 7d 11 f1 ff b8
f2 ff ff ff 40 30 f6 e9 d3 3a f2 ff b8 f2 ff ff ff 30 d2 e9 db 3a f2 ff <ba> f2
ff ff ff e9 6b 55 f2 ff b8 f2 ff ff ff e9 1c 5a f2 ff b8
[ 789.011827] Setting dangerous option reset - tainting kernel</pre>
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