<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [CI] igt@drv_selftest@live_coherency - dmesg-fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=103707#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [CI] igt@drv_selftest@live_coherency - dmesg-fail" href="https://bugs.freedesktop.org/show_bug.cgi?id=103707">bug 103707</a> from <a class="email" href="mailto:marta.lofstedt@intel.com" title="Marta Löfstedt <marta.lofstedt@intel.com>"> Marta Löfstedt</a> <pre><a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3340/shard-glkb3/igt@drv_selftest@live_evict.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3340/shard-glkb3/igt@drv_selftest@live_evict.html</a> dmesg: <7>[ 890.372801] BUG: MAX_LOCKDEP_CHAINS too low! <7>[ 890.372808] turning off the locking correctness validator. <4>[ 890.372815] CPU: 2 PID: 11348 Comm: drv_selftest Tainted: G U 4.14.0-rc8-CI-CI_DRM_3340+ #1 <4>[ 890.372821] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017 <4>[ 890.372829] Call Trace: <4>[ 890.372839] dump_stack+0x68/0x9f <4>[ 890.372846] __lock_acquire+0x19d5/0x1b00 <4>[ 890.372853] lock_acquire+0xb0/0x200 <4>[ 890.372857] ? lock_acquire+0xb0/0x200 <4>[ 890.372861] ? load_balance+0x307/0xb50 <4>[ 890.372866] _raw_spin_lock_irqsave+0x3d/0x60 <4>[ 890.372869] ? load_balance+0x307/0xb50 <4>[ 890.372874] load_balance+0x307/0xb50 <4>[ 890.372880] ? trace_hardirqs_off_caller+0x96/0xe0 <4>[ 890.372886] pick_next_task_fair+0x648/0x840 <4>[ 890.372892] __schedule+0x123/0xaf0 <4>[ 890.372898] schedule+0x40/0x90 <4>[ 890.372902] schedule_timeout+0x1f2/0x550 <4>[ 890.372909] ? run_timer_softirq+0x160/0x160 <4>[ 890.372914] schedule_timeout_uninterruptible+0x2a/0x30 <4>[ 890.372919] ? schedule_timeout_uninterruptible+0x2a/0x30 <4>[ 890.372971] wait_panel_power_cycle+0xb9/0xc0 [i915] <4>[ 890.373020] edp_panel_vdd_on+0x1c6/0x1d0 [i915] <4>[ 890.373027] ? mutex_lock_nested+0x1b/0x20 <4>[ 890.373071] intel_dp_aux_ch+0x48/0x5f0 [i915] <4>[ 890.373119] intel_dp_aux_transfer+0xa5/0x200 [i915] <4>[ 890.373127] drm_dp_dpcd_access+0x65/0xf0 <4>[ 890.373131] drm_dp_dpcd_read+0x31/0x70 <4>[ 890.373175] intel_dp_read_dpcd+0x29/0x60 [i915] <4>[ 890.373221] intel_dp_init_connector+0x9c3/0x1360 [i915] <4>[ 890.373229] ? rcu_read_lock_sched_held+0x7a/0x90 <4>[ 890.373233] ? kmem_cache_alloc_trace+0x270/0x2d0 <4>[ 890.373278] intel_ddi_init+0x393/0x490 [i915] <4>[ 890.373326] intel_modeset_init+0x12d2/0x1910 [i915] <4>[ 890.373374] ? intel_setup_gmbus+0x244/0x260 [i915] <4>[ 890.373418] i915_driver_load+0x9c4/0x1600 [i915] <4>[ 890.373462] i915_pci_probe+0x37/0x90 [i915] <4>[ 890.373470] pci_device_probe+0xa8/0x130 <4>[ 890.373475] driver_probe_device+0x29c/0x450 <4>[ 890.373481] __driver_attach+0xe3/0xf0 <4>[ 890.373485] ? driver_probe_device+0x450/0x450 <4>[ 890.373489] bus_for_each_dev+0x62/0xa0 <4>[ 890.373493] driver_attach+0x1e/0x20 <4>[ 890.373498] bus_add_driver+0x173/0x270 <4>[ 890.373502] driver_register+0x60/0xe0 <4>[ 890.373507] __pci_register_driver+0x6b/0x70 <4>[ 890.373548] i915_init+0x6f/0x78 [i915] <4>[ 890.373554] ? 0xffffffffa04c7000 <4>[ 890.373559] do_one_initcall+0x43/0x170 <4>[ 890.373563] ? rcu_read_lock_sched_held+0x7a/0x90 <4>[ 890.373567] ? kmem_cache_alloc_trace+0x270/0x2d0 <4>[ 890.373573] do_init_module+0x5f/0x206 <4>[ 890.373577] load_module+0x2581/0x2dd0 <4>[ 890.373582] ? show_coresize+0x30/0x30 <4>[ 890.373586] ? kernel_read+0x31/0x50 <4>[ 890.373591] SyS_finit_module+0xc1/0x100 <4>[ 890.373596] ? SyS_finit_module+0xc1/0x100 <4>[ 890.373601] entry_SYSCALL_64_fastpath+0x1c/0xb1 <4>[ 890.373605] RIP: 0033:0x7f191e6749f9 <4>[ 890.373608] RSP: 002b:00007ffc5a86a9e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 <4>[ 890.373615] RAX: ffffffffffffffda RBX: ffffffff81492083 RCX: 00007f191e6749f9 <4>[ 890.373619] RDX: 0000000000000000 RSI: 00007f191f5a7e23 RDI: 0000000000000003 <4>[ 890.373623] RBP: ffffc9000054ff88 R08: 0000000000000000 R09: 00005640b845fdb0 <4>[ 890.373627] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 <4>[ 890.373631] R13: 00005640b8460dd0 R14: 0000000000000000 R15: 00005640b84589a0 <4>[ 890.373637] ? __this_cpu_preempt_check+0x13/0x20 <7>[ 891.029129] [drm:wait_panel_status [i915]] mask b800000f value 00000000 status 00000000 contro Note, the piglit filter dmesg doesn't have the "BUG: MAX_LOCKDEP_CHAINS too low!". Which make this annoying since I now no longer can trust the piglit geneerated dmesg warning and always have to search through the real dmesg. piglit dmesg: [ 888.351041] Setting dangerous option live_selftests - tainting kernel [ 890.240848] i915: probe of 0000:00:02.0 failed with error -25 [ 890.372815] CPU: 2 PID: 11348 Comm: drv_selftest Tainted: G U 4.14.0-rc8-CI-CI_DRM_3340+ #1 [ 890.372821] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017 [ 890.372829] Call Trace: [ 890.372839] dump_stack+0x68/0x9f [ 890.372846] __lock_acquire+0x19d5/0x1b00 [ 890.372853] lock_acquire+0xb0/0x200 [ 890.372857] ? lock_acquire+0xb0/0x200 [ 890.372861] ? load_balance+0x307/0xb50 [ 890.372866] _raw_spin_lock_irqsave+0x3d/0x60 [ 890.372869] ? load_balance+0x307/0xb50 [ 890.372874] load_balance+0x307/0xb50 [ 890.372880] ? trace_hardirqs_off_caller+0x96/0xe0 [ 890.372886] pick_next_task_fair+0x648/0x840 [ 890.372892] __schedule+0x123/0xaf0 [ 890.372898] schedule+0x40/0x90 [ 890.372902] schedule_timeout+0x1f2/0x550 [ 890.372909] ? run_timer_softirq+0x160/0x160 [ 890.372914] schedule_timeout_uninterruptible+0x2a/0x30 [ 890.372919] ? schedule_timeout_uninterruptible+0x2a/0x30 [ 890.372971] wait_panel_power_cycle+0xb9/0xc0 [i915] [ 890.373020] edp_panel_vdd_on+0x1c6/0x1d0 [i915] [ 890.373027] ? mutex_lock_nested+0x1b/0x20 [ 890.373071] intel_dp_aux_ch+0x48/0x5f0 [i915] [ 890.373119] intel_dp_aux_transfer+0xa5/0x200 [i915] [ 890.373127] drm_dp_dpcd_access+0x65/0xf0 [ 890.373131] drm_dp_dpcd_read+0x31/0x70 [ 890.373175] intel_dp_read_dpcd+0x29/0x60 [i915] [ 890.373221] intel_dp_init_connector+0x9c3/0x1360 [i915] [ 890.373229] ? rcu_read_lock_sched_held+0x7a/0x90 [ 890.373233] ? kmem_cache_alloc_trace+0x270/0x2d0 [ 890.373278] intel_ddi_init+0x393/0x490 [i915] [ 890.373326] intel_modeset_init+0x12d2/0x1910 [i915] [ 890.373374] ? intel_setup_gmbus+0x244/0x260 [i915] [ 890.373418] i915_driver_load+0x9c4/0x1600 [i915] [ 890.373462] i915_pci_probe+0x37/0x90 [i915] [ 890.373470] pci_device_probe+0xa8/0x130 [ 890.373475] driver_probe_device+0x29c/0x450 [ 890.373481] __driver_attach+0xe3/0xf0 [ 890.373485] ? driver_probe_device+0x450/0x450 [ 890.373489] bus_for_each_dev+0x62/0xa0 [ 890.373493] driver_attach+0x1e/0x20 [ 890.373498] bus_add_driver+0x173/0x270 [ 890.373502] driver_register+0x60/0xe0 [ 890.373507] __pci_register_driver+0x6b/0x70 [ 890.373548] i915_init+0x6f/0x78 [i915] [ 890.373554] ? 0xffffffffa04c7000 [ 890.373559] do_one_initcall+0x43/0x170 [ 890.373563] ? rcu_read_lock_sched_held+0x7a/0x90 [ 890.373567] ? kmem_cache_alloc_trace+0x270/0x2d0 [ 890.373573] do_init_module+0x5f/0x206 [ 890.373577] load_module+0x2581/0x2dd0 [ 890.373582] ? show_coresize+0x30/0x30 [ 890.373586] ? kernel_read+0x31/0x50 [ 890.373591] SyS_finit_module+0xc1/0x100 [ 890.373596] ? SyS_finit_module+0xc1/0x100 [ 890.373601] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 890.373605] RIP: 0033:0x7f191e6749f9 [ 890.373608] RSP: 002b:00007ffc5a86a9e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 890.373615] RAX: ffffffffffffffda RBX: ffffffff81492083 RCX: 00007f191e6749f9 [ 890.373619] RDX: 0000000000000000 RSI: 00007f191f5a7e23 RDI: 0000000000000003 [ 890.373623] RBP: ffffc9000054ff88 R08: 0000000000000000 R09: 00005640b845fdb0 [ 890.373627] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 [ 890.373631] R13: 00005640b8460dd0 R14: 0000000000000000 R15: 00005640b84589a0 [ 890.373637] ? __this_cpu_preempt_check+0x13/0x20 [ 891.528248] to colour frame buffer device 400x112</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>