https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4717/shard-hsw1/igt@perf@oa-formats.html

<7> [85.709152] [drm:i915_perf_open_ioctl [i915]] OA Buffer initialized, gtt offset = 0x2000000, vaddr = 00000000eeaa2c80, size = 16777216
<5> [85.734947] [drm] Skipping spurious, invalid OA report
<5> [85.734951] [drm] Skipping spurious, invalid OA report
<5> [85.734953] [drm] Skipping spurious, invalid OA report
<5> [85.734956] [drm] Skipping spurious, invalid OA report
<5> [85.734958] [drm] Skipping spurious, invalid OA report
<5> [85.734961] [drm] Skipping spurious, invalid OA report
<5> [85.734963] [drm] Skipping spurious, invalid OA report
<5> [85.734966] [drm] Skipping spurious, invalid OA report
<5> [85.734968] [drm] Skipping spurious, invalid OA report
<5> [85.734971] [drm] Skipping spurious, invalid OA report
<5> [85.779969] [drm] 218754 spurious OA report notices suppressed due to ratelimiting
<3> [85.780219] =============================================================================
<3> [85.780296] BUG radix_tree_node (Tainted: G     U           ): Redzone overwritten
<3> [85.780309] -----------------------------------------------------------------------------\x0a
<4> [85.780327] Disabling lock debugging due to kernel taint
<3> [85.780328] INFO: 0x00000000b25c168a-0x0000000094600793. First byte 0x0 instead of 0xbb
<3> [85.780333] INFO: Slab 0x00000000578ecb81 objects=35 used=35 fp=0x          (null) flags=0x8000000000010200
<3> [85.780339] INFO: Object 0x00000000cbb9ce62 @offset=23720 fp=0x0000000089925685\x0a
<3> [85.780346] Redzone 00000000b25c168a: 00 00 00 00 90 13 01 00                          ........
<3> [85.780351] Object 00000000cbb9ce62: 1d 50 71 00 00 00 00 00 00 00 00 00 00 00 00 00  .Pq.............
<3> [85.780356] Object 0000000080babb74: 18 00 00 00 f2 13 01 00 00 00 00 00 00 00 00 00  ................
<3> [85.780362] Object 00000000eca98709: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780368] Object 000000000948b4a3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780373] Object 000000002d65e963: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780379] Object 0000000013715f91: 00 00 00 00 00 00 00 00 00 04 05 00 00 70 0d 4f  .............p.O
<3> [85.780385] Object 0000000037a9287d: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780390] Object 00000000ad634fab: 00 00 00 00 00 00 00 00 00 00 00 00 50 22 01 00  ............P"..
<3> [85.780396] Object 000000009c9e32c5: 1d 50 73 00 00 00 00 00 00 00 00 00 00 00 00 00  .Ps.............
<3> [85.780401] Object 00000000c68c35ac: 18 00 00 00 b2 22 01 00 00 00 00 00 00 00 00 00  ....."..........
<3> [85.780407] Object 000000000ae7cd5c: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780413] Object 00000000ade7853d: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780418] Object 00000000c2746754: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780424] Object 00000000ff41d3fe: 00 00 00 00 00 00 00 00 00 04 05 00 00 90 0d 4f  ...............O
<3> [85.780430] Object 0000000048a9b412: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780435] Object 00000000ad96283f: 00 00 00 00 00 00 00 00 00 00 00 00 a1 34 01 00  .............4..
<3> [85.780441] Object 00000000510b6a2c: 1d 50 75 00 00 00 00 00 00 00 00 00 00 00 00 00  .Pu.............
<3> [85.780447] Object 0000000048f60cfd: 18 00 00 00 03 35 01 00 00 00 00 00 00 00 00 00  .....5..........
<3> [85.780452] Object 00000000f3b857aa: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780458] Object 000000006bedd180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780464] Object 0000000020ad1c0c: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780469] Object 000000004a5170a0: 00 00 00 00 00 00 00 00 00 04 05 00 00 b0 0d 4f  ...............O
<3> [85.780475] Object 00000000cf77617a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780480] Object 0000000024bd8113: 00 00 00 00 00 00 00 00 00 00 00 00 22 4c 01 00  ............"L..
<3> [85.780486] Object 000000005809578d: 1d 50 77 00 00 00 00 00 00 00 00 00 00 00 00 00  .Pw.............
<3> [85.780492] Object 00000000101a7c35: 18 00 00 00 84 4c 01 00 00 00 00 00 00 00 00 00  .....L..........
<3> [85.780497] Object 00000000105b7e9d: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780503] Object 00000000bf617479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780509] Object 0000000058378890: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780514] Object 0000000046179e28: 00 00 00 00 00 00 00 00 00 04 05 00 00 d0 0d 4f  ...............O
<3> [85.780520] Object 00000000b1deea66: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780526] Object 0000000060bdb138: 00 00 00 00 00 00 00 00 00 00 00 00 42 65 01 00  ............Be..
<3> [85.780531] Object 00000000ac63510e: 1d 50 79 00 00 00 00 00 00 00 00 00 00 00 00 00  .Py.............
<3> [85.780537] Object 0000000054046933: 18 00 00 00 a4 65 01 00 00 00 00 00 00 00 00 00  .....e..........
<3> [85.780542] Object 00000000426692c8: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780548] Object 00000000bacb6880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3> [85.780554] Redzone 00000000b00402e1: 00 00 00 00 00 00 00 00                          ........
<3> [85.780559] Padding 000000004c8d8d12: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
<4> [85.780566] CPU: 1 PID: 2229 Comm: perf Tainted: G    BU            4.20.0-rc2-CI-CI_DRM_5150+ #1
<4> [85.780566] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12 02/15/2016
<4> [85.780567] Call Trace:
<4> [85.780570]  dump_stack+0x67/0x9b
<4> [85.780574]  check_bytes_and_report+0xbd/0x100
<4> [85.780576]  check_object+0x184/0x280
<4> [85.780578]  ? xas_alloc+0x7e/0xa0
<4> [85.780579]  alloc_debug_processing+0x183/0x190
<4> [85.780581]  ___slab_alloc.constprop.34+0x355/0x380
<4> [85.780582]  ? xas_alloc+0x7e/0xa0
<4> [85.780585]  ? __lock_acquire+0x3c7/0x1b00
<4> [85.780586]  ? xas_alloc+0x7e/0xa0
<4> [85.780588]  ? __slab_alloc.isra.27.constprop.33+0x3d/0x70
<4> [85.780589]  __slab_alloc.isra.27.constprop.33+0x3d/0x70
<4> [85.780590]  ? xas_alloc+0x7e/0xa0
<4> [85.780591]  kmem_cache_alloc+0x21c/0x280
<4> [85.780593]  xas_alloc+0x7e/0xa0
<4> [85.780594]  xas_create+0x1cc/0x4a0
<4> [85.780596]  xas_create_range+0x61/0x150
<4> [85.780599]  shmem_add_to_page_cache+0x154/0x320
<4> [85.780601]  shmem_getpage_gfp.isra.8+0x519/0xd90
<4> [85.780604]  shmem_read_mapping_page_gfp+0x3e/0x70
<4> [85.780635]  i915_gem_object_get_pages_gtt+0x212/0x6d0 [i915]
<4> [85.780638]  ? ___slab_alloc.constprop.34+0x21c/0x380
<4> [85.780639]  ? ___slab_alloc.constprop.34+0x21c/0x380
<4> [85.780664]  ? i915_vma_instance+0x11c/0x8a0 [i915]
<4> [85.780686]  ? __i915_gem_object_get_pages+0x18/0xb0 [i915]
<4> [85.780688]  ? lock_acquire+0xa6/0x1c0
<4> [85.780711]  ____i915_gem_object_get_pages+0x1d/0xa0 [i915]
<4> [85.780732]  __i915_gem_object_get_pages+0x59/0xb0 [i915]
<4> [85.780754]  __i915_vma_do_pin+0x97f/0xd60 [i915]
<4> [85.780777]  i915_gem_object_ggtt_pin+0x208/0x3f0 [i915]
<4> [85.780801]  i915_perf_open_ioctl+0xd80/0x11d0 [i915]
<4> [85.780825]  ? i915_oa_init_reg_state+0x30/0x30 [i915]
<4> [85.780828]  drm_ioctl_kernel+0x81/0xf0
<4> [85.780830]  drm_ioctl+0x2de/0x390
<4> [85.780853]  ? i915_oa_init_reg_state+0x30/0x30 [i915]
<4> [85.780856]  ? _raw_spin_unlock+0x29/0x40
<4> [85.780857]  ? __handle_mm_fault+0x81b/0xfc0
<4> [85.780860]  do_vfs_ioctl+0xa0/0x6e0
<4> [85.780861]  ? lock_acquire+0xa6/0x1c0
<4> [85.780863]  ? __task_pid_nr_ns+0xb9/0x1f0
<4> [85.780865]  ksys_ioctl+0x35/0x60
<4> [85.780867]  __x64_sys_ioctl+0x11/0x20
<4> [85.780868]  do_syscall_64+0x55/0x190
<4> [85.780870]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [85.780871] RIP: 0033:0x7f38b50925d7
<4> [85.780872] Code: b3 66 90 48 8b 05 b1 48 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 81 48 2d 00 f7 d8 64 89 01 48
<4> [85.780873] RSP: 002b:00007ffc454db1c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
<4> [85.780874] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f38b50925d7
<4> [85.780875] RDX: 00007ffc454db260 RSI: 0000000040106476 RDI: 0000000000000005
<4> [85.780876] RBP: 00007ffc454db260 R08: 0000000000000000 R09: 0000000000000019
<4> [85.780876] R10: 00000000ffffffe7 R11: 0000000000000246 R12: 0000000040106476
<4> [85.780877] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000
<3> [85.780880] FIX radix_tree_node: Restoring 0x00000000b25c168a-0x0000000094600793=0xbb\x0a
<3> [85.780887] FIX radix_tree_node: Marking all objects used