[Bug 112348] New: [CI][SHARDS]igt at gem_ctx_create@basic-files - dmesg-warn - BUG kmalloc-8k (Tainted:.*): Redzone overwritten

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112348

            Bug ID: 112348
           Summary: [CI][SHARDS]igt at gem_ctx_create@basic-files -
                    dmesg-warn - BUG kmalloc-8k (Tainted:.*): Redzone
                    overwritten
           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/IGTPW_3726/shard-iclb7/igt@gem_ctx_create@basic-files.html
6> [93.168450] Console: switching to colour dummy device 80x25
<6> [93.168495] [IGT] gem_ctx_create: executing
<5> [93.175965] Setting dangerous option reset - tainting kernel
<6> [93.178647] [IGT] gem_ctx_create: starting subtest basic-files
<7> [95.689107] [drm:edp_panel_vdd_off_sync [i915]] Turning [ENCODER:214:DDI A]
VDD off
<7> [95.689302] [drm:edp_panel_vdd_off_sync [i915]] PP_STATUS: 0x80000008
PP_CONTROL: 0x00000067
<7> [95.689340] [drm:intel_power_well_disable [i915]] disabling DC off
<7> [95.689383] [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [95.689420] [drm:gen9_set_dc_state [i915]] Setting DC state from 00 to 02
<3> [98.786793]
=============================================================================
<3> [98.786936] BUG kmalloc-8k (Tainted: G     U           ): Redzone
overwritten
<3> [98.786953]
-----------------------------------------------------------------------------

<4> [98.786974] Disabling lock debugging due to kernel taint
<3> [98.786976] INFO: 0x00000000cd9c7f25-0x00000000d09cd61d. First byte 0x0
instead of 0xcc
<3> [98.787024] INFO: Allocated in __alloc_pd+0xb/0x30 [i915] age=4300 cpu=6
pid=1127
<3> [98.787032]         __slab_alloc.isra.84.constprop.89+0x3d/0x70
<3> [98.787036]         __kmalloc+0x2b1/0x320
<3> [98.787073]         __alloc_pd+0xb/0x30 [i915]
<3> [98.787109]         alloc_pd+0x16/0x50 [i915]
<3> [98.787142]         __gen8_ppgtt_alloc+0x436/0x690 [i915]
<3> [98.787176]         __gen8_ppgtt_alloc+0x2eb/0x690 [i915]
<3> [98.787209]         gen8_ppgtt_alloc+0xc1/0x270 [i915]
<3> [98.787241]         ppgtt_bind_vma+0x2a/0xc0 [i915]
<3> [98.787274]         __vma_bind+0x26/0xc0 [i915]
<3> [98.787300]         fence_work+0x1c/0x80 [i915]
<3> [98.787305]         process_one_work+0x26a/0x620
<3> [98.787308]         worker_thread+0x37/0x380
<3> [98.787313]         kthread+0x119/0x130
<3> [98.787317]         ret_from_fork+0x24/0x50
<3> [98.787321] INFO: Slab 0x00000000b858867f objects=1 used=1
fp=0x000000006053eb3c flags=0x8000000000010201
<3> [98.787328] INFO: Object 0x0000000086fb50a4 @offset=8192
fp=0x000000006053eb3c

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