Comment # 35
on bug 104082
from Nick Lee
The same on NVIDIA Corporation C79 [GeForce 9300 / nForce 730i] (rev b1). This happens when high disk IO load. For example - copy foles from HDD to USB. [30790.063300] nouveau 0000:03:00.0: swiotlb buffer is full (sz: 2097152 bytes) [30790.063304] nouveau 0000:03:00.0: swiotlb: coherent allocation failed, size=2097152 [30790.063308] CPU: 1 PID: 2071 Comm: gnome-shell Not tainted 4.16.0-0.rc3.git2.1.vanilla.knurd.1.fc27.x86_64 #1 [30790.063309] Hardware name: NVIDIA MCP7A/MCP7A, BIOS 6.00 PG 04/22/2009 [30790.063310] Call Trace: [30790.063321] dump_stack+0x5c/0x85 [30790.063326] swiotlb_alloc_coherent+0x1be/0x1d0 [30790.063338] ttm_dma_pool_get_pages+0x235/0x620 [ttm] [30790.063345] ttm_dma_populate+0x25e/0x350 [ttm] [30790.063350] ttm_tt_bind+0x2c/0x60 [ttm] [30790.063356] ttm_bo_handle_move_mem+0x577/0x5b0 [ttm] [30790.063362] ttm_bo_validate+0x120/0x130 [ttm] [30790.063393] ? drm_pcie_get_speed_cap_mask+0x8e/0xe0 [drm] [30790.063398] ttm_bo_init_reserved+0x378/0x420 [ttm] [30790.063403] ttm_bo_init+0x62/0xd0 [ttm] [30790.063473] ? nouveau_bo_invalidate_caches+0x10/0x10 [nouveau] [30790.063516] nouveau_bo_new+0x416/0x590 [nouveau] [30790.063562] ? nouveau_bo_invalidate_caches+0x10/0x10 [nouveau] [30790.063605] ? nouveau_gem_new+0x120/0x120 [nouveau] [30790.063648] nouveau_gem_new+0x5d/0x120 [nouveau] [30790.063692] nouveau_gem_ioctl_new+0x51/0xd0 [nouveau] [30790.063706] drm_ioctl_kernel+0x5b/0xb0 [drm] [30790.063720] drm_ioctl+0x2d5/0x370 [drm] [30790.063764] ? nouveau_gem_new+0x120/0x120 [nouveau] [30790.063809] nouveau_drm_ioctl+0x64/0xc0 [nouveau] [30790.063815] do_vfs_ioctl+0xa4/0x620 [30790.063818] SyS_ioctl+0x74/0x80 [30790.063822] do_syscall_64+0x74/0x180 [30790.063826] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [30790.063829] RIP: 0033:0x7f2a2164b8e7 [30790.063830] RSP: 002b:00007ffdc53b6bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [30790.063833] RAX: ffffffffffffffda RBX: 000055c99031d960 RCX: 00007f2a2164b8e7 [30790.063834] RDX: 00007ffdc53b6c30 RSI: 00000000c0306480 RDI: 000000000000000c [30790.063836] RBP: 00007ffdc53b6c30 R08: 0000000000000004 R09: 000055c99031d950 [30790.063837] R10: ffffffffffffffb0 R11: 0000000000000246 R12: 00000000c0306480 [30790.063839] R13: 000000000000000c R14: 000055c98cfab250 R15: 000055c98a0e4140 [30790.110592] nouveau 0000:03:00.0: swiotlb buffer is full (sz: 2097152 bytes)
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