KBL : igt@amdgpu/amd_prime@i915-to-amd - dmesg-warn - WARNING: CPU: .* PID: \d+ at drivers/dma-buf/dma-buf.c:.*dma_buf_pin.*

• <4> [441.301135] ------------[ cut here ]------------
• <4> [441.301156] WARNING: CPU: 4 PID: 6763 at drivers/dma-buf/dma-buf.c:842 dma_buf_pin+0x5d/0x70
• <4> [441.301162] Modules linked in: snd_hda_intel i915 vgem snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio amdgpu mei_hdcp snd_hda_codec_hdmi x86_pkg_temp_thermal coretemp btusb btrtl crct10dif_pclmul btbcm crc32_pclmul btintel bluetooth snd_intel_dspcfg ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core e1000e ecdh_generic igb snd_pcm ecc drm_ttm_helper ptp mei_me pps_core ttm mei gpu_sched prime_numbers intel_lpss_pci pinctrl_sunrisepoint [last unloaded: dmabuf_selftests]
• <4> [441.301232] CPU: 4 PID: 6763 Comm: amd_prime Tainted: G U 5.11.0-rc3-CI-CI_DRM_9592+ #1 (moved)
• <4> [441.301235] Hardware name: Intel Corporation NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0047.2018.0718.1706 07/18/2018
• <4> [441.301237] RIP: 0010:dma_buf_pin+0x5d/0x70
• <4> [441.301241] Code: 40 01 00 00 be ff ff ff ff 48 8d 78 68 e8 ab 66 36 00 85 c0 75 d0 0f 0b 48 8b 45 20 48 8b 40 18 48 85 c0 75 ce 31 c0 5b 5d c3 <0f> 0b eb ae 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 55 53 48
• <4> [441.301243] RSP: 0018:ffffc90004823d20 EFLAGS: 00010246
• <4> [441.301247] RAX: 0000000000000000 RBX: ffff888138acabd8 RCX: 0000000000000001
• <4> [441.301249] RDX: 0000000080000001 RSI: ffffffff822f9e7c RDI: ffff888138acabd8
• <4> [441.301251] RBP: ffff888108755a00 R08: ffff888105eb33b0 R09: 0000000000000000
• <4> [441.301253] R10: ffffc90004823d38 R11: 000000007b72485b R12: ffff8881323c5198
• <4> [441.301255] R13: ffff888108755a10 R14: ffff888108755a10 R15: ffff888133fe0c20
• <4> [441.301257] FS: 00007fc73e8a7500(0000) GS:ffff888276800000(0000) knlGS:0000000000000000
• <4> [441.301260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
• <4> [441.301262] CR2: 000055feec3630f8 CR3: 0000000130d82005 CR4: 00000000003706e0
• <4> [441.301264] Call Trace:
• <4> [441.301267] dma_buf_dynamic_attach+0x14a/0x3a0
• <4> [441.301274] i915_gem_prime_import+0x26/0x120 [i915]
• <4> [441.301365] drm_gem_prime_fd_to_handle+0xc3/0x1d0
• <4> [441.301371] ? drm_prime_destroy_file_private+0x10/0x10
• <4> [441.301375] drm_ioctl_kernel+0xaa/0xf0
• <4> [441.301381] drm_ioctl+0x1e8/0x390
• <4> [441.301384] ? drm_prime_destroy_file_private+0x10/0x10
• <4> [441.301389] ? _raw_spin_unlock_irqrestore+0x42/0x50
• <4> [441.301393] ? lockdep_hardirqs_on+0xbf/0x130
• <4> [441.301397] ? recalibrate_cpu_khz+0x10/0x10
• <4> [441.301406] __x64_sys_ioctl+0x6d/0xa0
• <4> [441.301412] do_syscall_64+0x33/0x80
• <4> [441.301416] entry_SYSCALL_64_after_hwframe+0x44/0xa9
• <4> [441.301419] RIP: 0033:0x7fc73db125d7
• <4> [441.301421] 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> [441.301424] RSP: 002b:00007ffe9cd11578 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
• <4> [441.301428] RAX: ffffffffffffffda RBX: 0000000000000f25 RCX: 00007fc73db125d7
• <4> [441.301430] RDX: 00007ffe9cd115bc RSI: 00000000c00c642e RDI: 0000000000000006
• <4> [441.301432] RBP: 00007ffe9cd115bc R08: 0000000000000000 R09: 000000000000001f
• <4> [441.301434] R10: 0000000000000057 R11: 0000000000000246 R12: 00000000c00c642e
• <4> [441.301436] R13: 0000000000000006 R14: 0000000000000006 R15: 00007fc73e82c930
• <4> [441.301447] irq event stamp: 375879
• <4> [441.301449] hardirqs last enabled at (375885): [] console_unlock+0x49a/0x580
• <4> [441.301452] hardirqs last disabled at (375890): [] console_unlock+0x406/0x580
• <4> [441.301455] softirqs last enabled at (374730): [] __do_softirq+0x342/0x48e
• <4> [441.301458] softirqs last disabled at (374713): [] asm_call_irq_on_stack+0x12/0x20
• <4> [441.301461] ---[ end trace b37956babb3c5870 ]---