https://bugzilla.kernel.org/show_bug.cgi?id=214029
--- Comment #14 from Erhard F. (erhard_f@mailbox.org) --- Created attachment 298927 --> https://bugzilla.kernel.org/attachment.cgi?id=298927&action=edit kernel dmesg (kernel 5.14.6, AMD Opteron 6386 SE)
Does not seem to be Navi specific after all as the leaks do happen with the Radeon R7 360 in my Opteron box too.
[...] unreferenced object 0xffff8afeddd0c2c0 (size 176): comm "Web Content", pid 1830253, jiffies 4302445561 (age 2701.157s) hex dump (first 32 bytes): 50 c3 d0 dd fe 8a ff ff 80 51 3a c0 ff ff ff ff P........Q:..... 0f 89 14 e9 f1 16 00 00 48 fe b6 09 41 a7 ff ff ........H...A... backtrace: [<ffffffffc03a347d>] drm_sched_fence_create+0x1d/0xb0 [gpu_sched] [<ffffffffc03a20d0>] drm_sched_job_init+0x58/0xa0 [gpu_sched] [<ffffffffc10fb711>] amdgpu_job_submit+0x21/0xe0 [amdgpu] [<ffffffffc0feef6a>] amdgpu_copy_buffer+0x1ea/0x290 [amdgpu] [<ffffffffc0fef292>] amdgpu_ttm_copy_mem_to_mem+0x282/0x5b0 [amdgpu] [<ffffffffc0fefad8>] amdgpu_bo_move+0x130/0x7d8 [amdgpu] [<ffffffffc0609e49>] ttm_bo_handle_move_mem+0x89/0x178 [ttm] [<ffffffffc060b1ba>] ttm_bo_validate+0xba/0x140 [ttm] [<ffffffffc0ff13ae>] amdgpu_bo_fault_reserve_notify+0xb6/0x160 [amdgpu] [<ffffffffc0ff62f8>] amdgpu_gem_fault+0x78/0x100 [amdgpu] [<ffffffff9b166941>] __do_fault+0x31/0xe8 [<ffffffff9b16dc4a>] __handle_mm_fault+0xe1a/0x1290 [<ffffffff9b16e175>] handle_mm_fault+0xb5/0x218 [<ffffffff9b6ca347>] exc_page_fault+0x177/0x5d0 [<ffffffff9b800acb>] asm_exc_page_fault+0x1b/0x20 unreferenced object 0xffff8b01f00bd0c0 (size 72): comm "sdma0", pid 403, jiffies 4302445561 (age 2701.157s) hex dump (first 32 bytes): e0 c7 64 13 ff 8a ff ff 00 1c 30 c1 ff ff ff ff ..d.......0..... 65 59 16 e9 f1 16 00 00 58 28 b9 86 03 8b ff ff eY......X(...... backtrace: [<ffffffffc0febecb>] amdgpu_fence_emit+0x2b/0x1f0 [amdgpu] [<ffffffffc100945b>] amdgpu_ib_schedule+0x2e3/0x4e8 [amdgpu] [<ffffffffc10fb34b>] amdgpu_job_run+0x8b/0x1e8 [amdgpu] [<ffffffffc03a2ad7>] drm_sched_main+0x1b7/0x3d8 [gpu_sched] [<ffffffff9b05f9e2>] kthread+0x122/0x140 [<ffffffff9b001102>] ret_from_fork+0x22/0x30 unreferenced object 0xffff8b02ec1796c0 (size 176): comm "Renderer", pid 108402, jiffies 4302694486 (age 1871.424s) hex dump (first 32 bytes): 50 97 17 ec 02 8b ff ff 80 51 3a c0 ff ff ff ff P........Q:..... 4f 9c 02 1a b3 17 00 00 48 fe b6 09 41 a7 ff ff O.......H...A... backtrace: [<ffffffffc03a347d>] drm_sched_fence_create+0x1d/0xb0 [gpu_sched] [<ffffffffc03a20d0>] drm_sched_job_init+0x58/0xa0 [gpu_sched] [<ffffffffc10fb711>] amdgpu_job_submit+0x21/0xe0 [amdgpu] [<ffffffffc0feef6a>] amdgpu_copy_buffer+0x1ea/0x290 [amdgpu] [<ffffffffc0fef292>] amdgpu_ttm_copy_mem_to_mem+0x282/0x5b0 [amdgpu] [<ffffffffc0fefad8>] amdgpu_bo_move+0x130/0x7d8 [amdgpu] [<ffffffffc0609e49>] ttm_bo_handle_move_mem+0x89/0x178 [ttm] [<ffffffffc060b1ba>] ttm_bo_validate+0xba/0x140 [ttm] [<ffffffffc0ff13ae>] amdgpu_bo_fault_reserve_notify+0xb6/0x160 [amdgpu] [<ffffffffc0ff62f8>] amdgpu_gem_fault+0x78/0x100 [amdgpu] [<ffffffff9b166941>] __do_fault+0x31/0xe8 [<ffffffff9b16dc4a>] __handle_mm_fault+0xe1a/0x1290 [<ffffffff9b16e175>] handle_mm_fault+0xb5/0x218 [<ffffffff9b6ca347>] exc_page_fault+0x177/0x5d0 [<ffffffff9b800acb>] asm_exc_page_fault+0x1b/0x20
# lspci -s 01:00.0 -v 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Tobago PRO [Radeon R7 360 / R9 360 OEM] (rev 81) (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited / Sapphire Technology Tobago PRO [Radeon R7 360 / R9 360 OEM] Flags: bus master, fast devsel, latency 0, IRQ 47, IOMMU group 11 Memory at d0000000 (64-bit, prefetchable) [size=256M] Memory at cf800000 (64-bit, prefetchable) [size=8M] I/O ports at c000 [size=256] Memory at fdc80000 (32-bit, non-prefetchable) [size=256K] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: [48] Vendor Specific Information: Len=08 <?> Capabilities: [50] Power Management version 3 Capabilities: [58] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Capabilities: [150] Advanced Error Reporting Capabilities: [200] Physical Resizable BAR Capabilities: [270] Secondary PCI Express Capabilities: [2b0] Address Translation Service (ATS) Capabilities: [2c0] Page Request Interface (PRI) Capabilities: [2d0] Process Address Space ID (PASID) Kernel driver in use: amdgpu Kernel modules: radeon, amdgpu