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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu 0000:07:00.0: swiotlb buffer is full (sz: 2097152 bytes)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104082#c26">Comment # 26</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu 0000:07:00.0: swiotlb buffer is full (sz: 2097152 bytes)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104082">bug 104082</a>
from <span class="vcard"><a class="email" href="mailto:mikhail.v.gavrilov@gmail.com" title="mikhail.v.gavrilov@gmail.com">mikhail.v.gavrilov@gmail.com</a>
</span></b>
<pre>[65574.681417] amdgpu 0000:07:00.0: swiotlb buffer is full (sz: 2097152 bytes)
[65574.681436] swiotlb: coherent allocation failed for device 0000:07:00.0
size=2097152
[65574.681439] CPU: 3 PID: 4658 Comm: steam Not tainted 4.15.0-rc4-amd-vega+
#13
[65574.681441] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H,
BIOS F11 08/12/2014
[65574.681443] Call Trace:
[65574.681452] dump_stack+0x8e/0xd6
[65574.681457] swiotlb_alloc_coherent+0xe8/0x160
[65574.681466] x86_swiotlb_alloc_coherent+0x43/0x50
[65574.681476] ttm_dma_pool_get_pages+0x230/0x630 [ttm]
[65574.681492] ttm_dma_populate+0x139/0x360 [ttm]
[65574.681534] amdgpu_ttm_tt_populate+0xd0/0xf0 [amdgpu]
[65574.681541] ttm_tt_bind+0x2b/0x60 [ttm]
[65574.681547] ttm_bo_handle_move_mem+0x566/0x5a0 [ttm]
[65574.681552] ? ttm_bo_mem_space+0x37a/0x450 [ttm]
[65574.681566] ttm_bo_validate+0x186/0x1a0 [ttm]
[65574.681577] ? mutex_trylock+0xd4/0xf0
[65574.681585] ttm_bo_init_reserved+0x472/0x500 [ttm]
[65574.681617] amdgpu_bo_do_create+0x216/0x550 [amdgpu]
[65574.681646] ? amdgpu_fill_buffer+0x2f0/0x2f0 [amdgpu]
[65574.681655] ? __lock_acquire+0x2d4/0x1350
[65574.681686] amdgpu_bo_create+0x4d/0x2e0 [amdgpu]
[65574.681721] amdgpu_gem_object_create+0x81/0x110 [amdgpu]
[65574.681752] ? amdgpu_gem_object_close+0x210/0x210 [amdgpu]
[65574.681776] amdgpu_gem_create_ioctl+0x1f4/0x280 [amdgpu]
[65574.681782] ? __might_fault+0x3e/0x90
[65574.681809] ? amdgpu_gem_object_close+0x210/0x210 [amdgpu]
[65574.681829] drm_ioctl_kernel+0x5d/0xb0 [drm]
[65574.681842] drm_ioctl+0x31b/0x3d0 [drm]
[65574.681865] ? amdgpu_gem_object_close+0x210/0x210 [amdgpu]
[65574.681875] ? trace_hardirqs_on_caller+0xf4/0x190
[65574.681880] ? trace_hardirqs_on+0xd/0x10
[65574.681908] amdgpu_drm_ioctl+0x4f/0x90 [amdgpu]
[65574.681941] amdgpu_kms_compat_ioctl+0x14/0x20 [amdgpu]
[65574.681946] compat_SyS_ioctl+0x6f9/0x1d60
[65574.681949] ? trace_hardirqs_on_caller+0xf4/0x190
[65574.681959] do_fast_syscall_32+0xb0/0x374
[65574.681965] entry_SYSENTER_compat+0x51/0x60
[65574.681969] RIP: 0023:0xf7f47db9
[65574.681971] RSP: 002b:00000000ff836fe8 EFLAGS: 00200286 ORIG_RAX:
0000000000000036
[65574.681975] RAX: ffffffffffffffda RBX: 0000000000000013 RCX:
00000000c0206440
[65574.681977] RDX: 00000000ff83707c RSI: 0000000058c9cbc0 RDI:
00000000c0206440
[65574.681979] RBP: 0000000000000013 R08: 0000000000000000 R09:
0000000000000000
[65574.681981] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000000
[65574.681983] R13: 0000000000000000 R14: 0000000000000000 R15:
0000000000000000
[65736.626861] Xwayland (2026) used greatest stack depth: 9712 bytes left</pre>
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