[Bug 112352] New: [CI][SHARDS] igt at gem_exec_schedule@wide-render - dmesg-warn - BUG kmalloc-\d+ \(Tainted:.*\): Wrong object count. Counter is \d+ but counted were -1

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Nov 20 12:41:23 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=112352

            Bug ID: 112352
           Summary: [CI][SHARDS] igt at gem_exec_schedule@wide-render -
                    dmesg-warn - BUG kmalloc-\d+ \(Tainted:.*\): Wrong
                    object count. Counter is \d+ but counted were -1
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: not set
          Priority: not set
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: lakshminarayana.vudum at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7379/shard-iclb7/igt@gem_exec_schedule@wide-render.html
<6> [307.548315] Console: switching to colour dummy device 80x25
<6> [307.548359] [IGT] gem_exec_schedule: executing
<5> [307.580884] Setting dangerous option reset - tainting kernel
<5> [307.588425] Setting dangerous option reset - tainting kernel
<5> [307.588857] Setting dangerous option reset - tainting kernel
<6> [307.592074] [IGT] gem_exec_schedule: starting subtest wide-render
<6> [309.266844] mce: CPU5: Package temperature/speed normal
<6> [309.266845] mce: CPU1: Package temperature/speed normal
<6> [309.266846] mce: CPU6: Package temperature/speed normal
<6> [309.266848] mce: CPU2: Package temperature/speed normal
<6> [309.266912] mce: CPU4: Package temperature/speed normal
<6> [309.266913] mce: CPU0: Package temperature/speed normal
<6> [309.266947] mce: CPU7: Package temperature/speed normal
<6> [309.266948] mce: CPU3: Package temperature/speed normal
<6> [310.176966] mce: CPU2: Core temperature/speed normal
<6> [310.176967] mce: CPU6: Core temperature/speed normal
<7> [310.451737] [drm:edp_panel_vdd_off_sync [i915]] Turning [ENCODER:214:DDI
A] VDD off
<7> [310.451950] [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008
PP_CONTROL: 0x00000067
<7> [310.451997] [drm:intel_power_well_disable [i915]] disabling DC off
<7> [310.452053] [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [310.452096] [drm:gen9_set_dc_state [i915]] Setting DC state from 00 to 02
<5> [314.178045] Setting dangerous option reset - tainting kernel
<5> [314.178310] Setting dangerous option reset - tainting kernel
<5> [314.184259] Setting dangerous option reset - tainting kernel
<5> [314.184467] Setting dangerous option reset - tainting kernel
<5> [314.190945] Setting dangerous option reset - tainting kernel
<5> [314.191159] Setting dangerous option reset - tainting kernel
<6> [314.200056] [IGT] gem_exec_schedule: exiting, ret=0
<5> [314.200369] Setting dangerous option reset - tainting kernel
<3> [314.257769]
=============================================================================
<3> [314.257979] BUG kmalloc-64 (Tainted: G     U           ): Wrong object
count. Counter is 16 but counted were -1
<3> [314.258004]
-----------------------------------------------------------------------------

<4> [314.258029] Disabling lock debugging due to kernel taint
<3> [314.258031] INFO: Slab 0x000000003866fdff objects=32 used=16
fp=0x000000009f128d0d flags=0x8000000000010201
<4> [314.258040] CPU: 1 PID: 16 Comm: ksoftirqd/1 Tainted: G    BU           
5.4.0-rc8-CI-CI_DRM_7379+ #1
<4> [314.258041] Hardware name: Intel Corporation Ice Lake Client
Platform/IceLake U DDR4 SODIMM PD RVP, BIOS ICLSFWR1.R00.3234.A01.1906141750
06/14/2019
<4> [314.258042] Call Trace:
<4> [314.258047]  dump_stack+0x71/0x9b
<4> [314.258050]  slab_err+0xa8/0xd0
<4> [314.258055]  ? free_debug_processing+0x37/0x380
<4> [314.258057]  on_freelist+0x1d7/0x260
<4> [314.258059]  free_debug_processing+0x129/0x380
<4> [314.258061]  ? rcu_core+0x5cf/0x750
<4> [314.258064]  __slab_free+0x35b/0x520
<4> [314.258066]  ? _raw_spin_unlock_irqrestore+0x39/0x60
<4> [314.258068]  ? debug_check_no_obj_freed+0x11d/0x210
<4> [314.258071]  ? rcu_core+0x420/0x750
<4> [314.258072]  ? rcu_core+0x5cf/0x750
<4> [314.258073]  rcu_core+0x5cf/0x750
<4> [314.258076]  __do_softirq+0xdf/0x47f
<4> [314.258080]  ? smpboot_thread_fn+0x23/0x280
<4> [314.258082]  ? smpboot_thread_fn+0x6b/0x280
<4> [314.258083]  run_ksoftirqd+0x2b/0x50
<4> [314.258085]  smpboot_thread_fn+0x1d3/0x280
<4> [314.258087]  ? sort_range+0x20/0x20
<4> [314.258089]  kthread+0x119/0x130
<4> [314.258091]  ? kthread_park+0x80/0x80
<4> [314.258092]  ret_from_fork+0x24/0x50
<3> [314.258096] FIX kmalloc-64: Object count adjusted.

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