igt@gem_mmap_gtt@big-copy-odd - dmesg-fail - BUG kmalloc-4k (Not tainted): Padding overwritten.
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_593/fi-gdg-551/igt@gem_mmap_gtt@big-copy-odd.html#dmesg-warnings17
<6> [259.981126] [IGT] gem_mmap_gtt: exiting, ret=98
<3> [259.985372] =============================================================================
<3> [259.985510] BUG kmalloc-4k (Not tainted): Padding overwritten. 0x00000000ddccb1e3-0x00000000d87b8a60 @offset=24576
<3> [259.985600] -----------------------------------------------------------------------------
<4> [259.985683] Disabling lock debugging due to kernel taint
<3> [259.985687] INFO: Slab 0x00000000313f31e2 objects=2 used=2 fp=0x0000000000000000 flags=0x10200
<4> [259.985709] CPU: 0 PID: 1057 Comm: gem_mmap_gtt Tainted: G B 5.8.0-rc7-g6bdd504eab135-drmtip_593+ #1
<4> [259.985711] Hardware name: Dell Inc. OptiPlex GX280 /0G8310, BIOS A04 02/09/2005
<4> [259.985714] Call Trace:
<4> [259.985724] dump_stack+0x78/0xab
<4> [259.985731] slab_err+0xa8/0xd0
<4> [259.985743] slab_pad_check.part.63+0xf7/0x190
<4> [259.985922] ? intel_crtc_duplicate_state+0x1d/0xe0 [i915]
<4> [259.985926] check_slab+0x95/0x110
<4> [259.985930] alloc_debug_processing+0x7d/0x1d0
<4> [259.985935] ___slab_alloc.constprop.94+0x9d5/0xb20
<4> [259.986054] ? intel_crtc_duplicate_state+0x1d/0xe0 [i915]
<4> [259.986059] ? lock_acquire+0xb5/0x3c0
<4> [259.986063] ? show_mem_node_skip.part.99+0x20/0x20
<4> [259.986181] ? intel_crtc_duplicate_state+0x1d/0xe0 [i915]
<4> [259.986185] ? __slab_alloc.isra.88.constprop.93+0x3d/0x70
<4> [259.986188] __slab_alloc.isra.88.constprop.93+0x3d/0x70
<4> [259.986305] ? intel_crtc_duplicate_state+0x1d/0xe0 [i915]
<4> [259.986309] __kmalloc_track_caller+0x2b5/0x320
<4> [259.986315] kmemdup+0x17/0x40
<4> [259.986432] intel_crtc_duplicate_state+0x1d/0xe0 [i915]
<4> [259.986439] drm_atomic_get_crtc_state+0x71/0x110
<4> [259.986444] drm_atomic_get_plane_state+0x10c/0x160
<4> [259.986449] drm_client_modeset_commit_atomic+0xae/0x270
<4> [259.986460] drm_client_modeset_commit_locked+0x44/0x1a0
<4> [259.986465] drm_client_modeset_commit+0x1c/0x40
<4> [259.986470] __drm_fb_helper_restore_fbdev_mode_unlocked+0x51/0xb0
<4> [259.986585] intel_fbdev_restore_mode+0x2b/0x60 [i915]
<4> [259.986589] drm_lastclose+0x2a/0x50
<4> [259.986592] drm_release_noglobal+0x35/0x50
<4> [259.986597] __fput+0xf4/0x260
<4> [259.986603] task_work_run+0x6e/0xb0
<4> [259.986609] __prepare_exit_to_usermode+0xd2/0x1a0
<4> [259.986614] do_syscall_64+0x62/0xe0
<4> [259.986618] entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4> [259.986622] RIP: 0033:0x7f50cc3ff421