<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <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#c16">Comment # 16</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 <a class="email" href="mailto:matt.scheirer@gmail.com" title="Matthew Scheirer <matt.scheirer@gmail.com>"> Matthew Scheirer</a> <pre>I get this as well with a 290 on 4.15 ONLY when DC is enabled. Its a dirty enough taint to leave btrfs volumes in inconsistent states so its straight crashing the kernel. Feb 08 17:06:08 system kernel: RSP: 002b:00007f56c62fc1a8 EFLAGS: 00000246 Feb 08 17:06:08 system kernel: amdgpu 0000:01:00.0: swiotlb buffer is full (sz: 2097152 bytes) Feb 08 17:06:08 system kernel: swiotlb: coherent allocation failed for device 0000:01:00.0 size=2097152 Feb 08 17:06:08 system kernel: CPU: 5 PID: 2216 Comm: Compositor Tainted: G O 4.15.1-2-ARCH #1 Feb 08 17:06:08 system kernel: Hardware name: ASUS All Series/Z87I-DELUXE, BIOS 1204 11/26/2014 Feb 08 17:06:08 system kernel: Call Trace: Feb 08 17:06:08 system kernel: dump_stack+0x5c/0x85 Feb 08 17:06:08 system kernel: swiotlb_alloc_coherent+0xe0/0x150 Feb 08 17:06:08 system kernel: ttm_dma_pool_get_pages+0x1f3/0x5c0 [ttm] Feb 08 17:06:08 system kernel: ttm_dma_populate+0x24a/0x340 [ttm] Feb 08 17:06:08 system kernel: ttm_tt_bind+0x29/0x60 [ttm] Feb 08 17:06:08 system kernel: ttm_bo_handle_move_mem+0x5da/0x610 [ttm] Feb 08 17:06:08 system kernel: ttm_bo_validate+0x135/0x150 [ttm] Feb 08 17:06:08 system kernel: ttm_bo_init_reserved+0x3a7/0x480 [ttm] Feb 08 17:06:08 system kernel: amdgpu_bo_do_create+0x1b4/0x420 [amdgpu] Feb 08 17:06:08 system kernel: ? amdgpu_fill_buffer+0x310/0x310 [amdgpu] Feb 08 17:06:08 system kernel: amdgpu_bo_create+0x50/0x210 [amdgpu] Feb 08 17:06:08 system kernel: ? ttm_eu_backoff_reservation+0x4d/0x70 [ttm] Feb 08 17:06:08 system kernel: amdgpu_gem_object_create+0x7f/0x110 [amdgpu] Feb 08 17:06:08 system kernel: amdgpu_gem_create_ioctl+0x1e6/0x280 [amdgpu] Feb 08 17:06:08 system kernel: ? page_add_file_rmap+0x11/0x140 Feb 08 17:06:08 system kernel: ? amdgpu_gem_object_close+0x1e0/0x1e0 [amdgpu] Feb 08 17:06:08 system kernel: drm_ioctl_kernel+0x5b/0xb0 [drm] Feb 08 17:06:08 system kernel: drm_ioctl+0x2d5/0x370 [drm] Feb 08 17:06:08 system kernel: ? amdgpu_gem_object_close+0x1e0/0x1e0 [amdgpu] Feb 08 17:06:08 system kernel: ? __handle_mm_fault+0xd30/0x1260 Feb 08 17:06:08 system kernel: amdgpu_drm_ioctl+0x49/0x80 [amdgpu] Feb 08 17:06:08 system kernel: do_vfs_ioctl+0xa4/0x630 Feb 08 17:06:08 system kernel: ? __do_page_fault+0x29d/0x500 Feb 08 17:06:08 system kernel: ? SyS_futex+0x12d/0x180 Feb 08 17:06:08 system kernel: SyS_ioctl+0x74/0x80 Feb 08 17:06:08 system kernel: ? do_page_fault+0x32/0x110 Feb 08 17:06:08 system kernel: entry_SYSCALL_64_fastpath+0x20/0x83 Feb 08 17:06:08 system kernel: RIP: 0033:0x7f56f7570d87</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>