https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_170/fi-gdg-551/igt@gem_exec_reuse@single.html

<6> [232.712072] Console: switching to colour dummy device 80x25
<6> [232.713749] [IGT] gem_exec_reuse: executing
<5> [232.729549] Setting dangerous option reset - tainting kernel
<7> [233.410407] [drm:intel_sdvo_detect [i915]] [CONNECTOR:43:DVI-D-1]
<7> [233.410522] [drm:intel_sdvo_debug_write [i915]] SDVOB: W: 0B                         (SDVO_CMD_GET_ATTACHED_DISPLAYS)
<7> [233.415554] [drm:intel_sdvo_read_response [i915]] SDVOB: R: (Success) 00 00
<7> [233.415639] [drm:intel_sdvo_detect [i915]] SDVO response 0 0 [1]
<7> [236.232658] [drm:i915_gem_do_execbuffer [i915]] EINVAL at i915_gem_do_execbuffer:2240
<7> [236.232763] [drm:i915_gem_do_execbuffer [i915]] EINVAL at i915_gem_do_execbuffer:2240
<7> [236.232854] [drm:i915_gem_do_execbuffer [i915]] EINVAL at i915_gem_do_execbuffer:2240
<6> [236.238877] [IGT] gem_exec_reuse: starting subtest single
<6> [241.610313] [IGT] gem_exec_reuse: exiting, ret=0
<6> [241.644878] Console: switching to colour frame buffer device 128x48
<3> [242.871398] =============================================================================
<3> [242.871864] BUG kmalloc-64 (Tainted: G     U           ): Redzone overwritten
<3> [242.871945] -----------------------------------------------------------------------------\x0a
<4> [242.872047] Disabling lock debugging due to kernel taint
<3> [242.872052] INFO: 0x0000000084981d92-0x000000009afa474c. First byte 0x0 instead of 0xcc
<3> [242.872118] INFO: Allocated in drm_vma_node_allow+0x20/0xc0 age=6916 cpu=0 pid=1052
<3> [242.872175] \x09kmem_cache_alloc_trace+0x228/0x290
<3> [242.872211] \x09drm_vma_node_allow+0x20/0xc0
<3> [242.872245] \x09drm_gem_handle_create_tail+0xc3/0x170
<3> [242.872455] \x09i915_gem_create+0x7f/0xc0 [i915]
<3> [242.872492] \x09drm_ioctl_kernel+0x81/0xf0
<3> [242.872523] \x09drm_ioctl+0x2de/0x390
<3> [242.872552] \x09do_vfs_ioctl+0xa0/0x6e0
<3> [242.872580] \x09ksys_ioctl+0x35/0x60
<3> [242.872607] \x09__x64_sys_ioctl+0x11/0x20
<3> [242.872639] \x09do_syscall_64+0x55/0x190
<3> [242.872669] \x09entry_SYSCALL_64_after_hwframe+0x49/0xbe
<3> [242.872708] INFO: Slab 0x00000000f080e0d1 objects=20 used=20 fp=0x          (null) flags=0x4000000000010201
<3> [242.872775] INFO: Object 0x00000000e4af1f76 @offset=8 fp=0x          (null)\x0a
<3> [242.872835] Redzone 0000000084981d92: 00 00 00 00 cc cc cc cc                          ........
<3> [242.872895] Object 00000000e4af1f76: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [242.872959] Object 000000003d8c4307: 00 00 00 00 00 00 00 00 98 ef f6 eb 97 9e ff ff  ................
<3> [242.873022] Object 00000000fcfe0a3d: 00 00 00 00 00 00 00 00 6b 6b 6b 6b 6b 6b 6b 6b  ........kkkkkkkk
<3> [242.873086] Object 0000000071fe61fb: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  kkkkkkkkkkkkkkk.
<3> [242.873149] Redzone 0000000057695cad: cc cc cc cc cc cc cc cc                          ........
<3> [242.873209] Padding 000000004a07592f: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
<4> [242.873271] CPU: 0 PID: 1052 Comm: gem_exec_reuse Tainted: G    BU            4.20.0-rc6-gcaa765e4d392-drmtip_170+ #1
<4> [242.873274] Hardware name: Dell Inc.                 OptiPlex GX280               /0G8310, BIOS A04 02/09/2005
<4> [242.873275] Call Trace:
<4> [242.873285]  dump_stack+0x67/0x9b
<4> [242.873289]  check_bytes_and_report+0xbd/0x100
<4> [242.873295]  check_object+0x177/0x270
<4> [242.873300]  free_debug_processing+0x137/0x370
<4> [242.873303]  ? drm_vma_node_revoke+0x64/0x70
<4> [242.873309]  __slab_free+0x337/0x510
<4> [242.873312]  ? _raw_spin_unlock_irqrestore+0x39/0x60
<4> [242.873317]  ? debug_check_no_obj_freed+0x132/0x210
<4> [242.873323]  ? drm_vma_node_revoke+0x64/0x70
<4> [242.873327]  ? drm_vma_node_revoke+0x64/0x70
<4> [242.873330]  drm_vma_node_revoke+0x64/0x70
<4> [242.873334]  drm_gem_object_release_handle+0x51/0xb0
<4> [242.873338]  ? drm_gem_object_handle_put_unlocked+0xb0/0xb0
<4> [242.873341]  idr_for_each+0x49/0xd0
<4> [242.873347]  drm_gem_release+0x17/0x20
<4> [242.873351]  drm_file_free.part.0+0x2d0/0x330
<4> [242.873356]  drm_release+0xa9/0x120
<4> [242.873362]  __fput+0xb9/0x1f0
<4> [242.873368]  task_work_run+0x82/0xb0
<4> [242.873375]  do_exit+0x34e/0xd10
<4> [242.873381]  do_group_exit+0x34/0xb0
<4> [242.873385]  __x64_sys_exit_group+0xf/0x10
<4> [242.873388]  do_syscall_64+0x55/0x190
<4> [242.873392]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [242.873397] RIP: 0033:0x7f759b8aee06
<4> [242.873408] Code: Bad RIP value.
<4> [242.873411] RSP: 002b:00007ffee3702dc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
<4> [242.873414] RAX: ffffffffffffffda RBX: 00007f759bbb1740 RCX: 00007f759b8aee06
<4> [242.873416] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
<4> [242.873418] RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
<4> [242.873421] R10: 00007f758fd1d0c0 R11: 0000000000000246 R12: 00007f759bbb1740
<4> [242.873423] R13: 0000000000000003 R14: 00007f759bbba628 R15: 0000000000000000
<3> [242.873432] FIX kmalloc-64: Restoring 0x0000000084981d92-0x000000009afa474c=0xcc\x0a
<3> [242.873558] FIX kmalloc-64: Object at 0x00000000e4af1f76 not freed