[Bug 104082] amdgpu 0000:07:00.0: swiotlb buffer is full (sz: 2097152 bytes)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104082

--- Comment #10 from Ed Tomlinson <edt at aei.ca> ---
Happening mesa 17.3 Kernel 4.15-rc9 on RX480 (4G) too

143575.460499] perf: interrupt took too long (3928 > 3910), lowering
kernel.perf_event_max_sample_rate to 50700
[146927.696615] [drm] {1920x1200, 2080x1235 at 154000Khz}
[147985.703511] amdgpu 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes)
[147985.703515] swiotlb: coherent allocation failed for device 0000:01:00.0
size=2097152
[147985.703517] CPU: 6 PID: 848 Comm: Xorg Not tainted 4.15.0-3-git #1
[147985.703517] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./Z87E-ITX, BIOS P2.50 07/11/2014
[147985.703518] Call Trace:
[147985.703525]  dump_stack+0x5c/0x85
[147985.703529]  swiotlb_alloc_coherent+0xd7/0x150
[147985.703534]  ttm_dma_pool_get_pages+0x1f0/0x5c0 [ttm]
[147985.703537]  ttm_dma_populate+0x24a/0x340 [ttm]
[147985.703539]  ttm_tt_bind+0x23/0x50 [ttm]
[147985.703541]  ttm_bo_handle_move_mem+0x5cd/0x600 [ttm]
[147985.703544]  ttm_bo_validate+0x12f/0x140 [ttm]
[147985.703551]  ? drm_gem_init+0x11/0xa0 [drm]
[147985.703553]  ttm_bo_init_reserved+0x3a5/0x470 [ttm]
[147985.703577]  amdgpu_bo_do_create+0x1b4/0x430 [amdgpu]
[147985.703592]  ? amdgpu_fill_buffer+0x300/0x300 [amdgpu]
[147985.703594]  ? unix_write_space+0x60/0xa0
[147985.703605]  amdgpu_bo_create+0x50/0x210 [amdgpu]
[147985.703608]  ? kmem_cache_free+0x1b6/0x1e0
[147985.703618]  amdgpu_gem_object_create+0x7f/0x110 [amdgpu]
[147985.703628]  amdgpu_gem_create_ioctl+0x1ec/0x280 [amdgpu]
[147985.703638]  ? amdgpu_gem_object_close+0x1e0/0x1e0 [amdgpu]
[147985.703643]  drm_ioctl_kernel+0x59/0xb0 [drm]
[147985.703647]  drm_ioctl+0x2cb/0x380 [drm]
[147985.703657]  ? amdgpu_gem_object_close+0x1e0/0x1e0 [amdgpu]
[147985.703659]  ? timerqueue_add+0x52/0x80
[147985.703667]  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[147985.703670]  do_vfs_ioctl+0xa1/0x610
[147985.703672]  ? __sys_recvmsg+0x4e/0x90
[147985.703673]  ? __sys_recvmsg+0x7d/0x90
[147985.703675]  SyS_ioctl+0x74/0x80
[147985.703676]  entry_SYSCALL_64_fastpath+0x20/0x83
[147985.703678] RIP: 0033:0x7fa503389d87
[147985.703678] RSP: 002b:00007ffc92250c38 EFLAGS: 00000246

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