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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Raven ridge (2400g) fails to start (swiotlb buffer is full) with IOMMU disabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106245">106245</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Raven ridge (2400g) fails to start (swiotlb buffer is full) with IOMMU disabled
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ojab@ojab.ru
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=139123" name="attach_139123" title="full dmesg, kernel 4.16.4">attachment 139123</a> <a href="attachment.cgi?id=139123&action=edit" title="full dmesg, kernel 4.16.4">[details]</a></span>
full dmesg, kernel 4.16.4
Ryzen 2400g
ASUS A320M-K with IOMMU disabled (either in BIOS/EFI or using amd_iommu=off)
kernels 4.16.4 & 4.17-rc2 (haven't this hardware before yesterday, so haven't
tested with older kernels)
amdgpu fails to load:
Apr 25 23:39:36 ojab kernel: [ 1.886215] amdgpu 0000:08:00.0: swiotlb buffer
is full (sz: 262152 bytes)
Apr 25 23:39:36 ojab kernel: [ 1.886315] amdgpu 0000:08:00.0: swiotlb:
coherent allocation failed, size=262152
Apr 25 23:39:36 ojab kernel: [ 1.886429] CPU: 7 PID: 263 Comm: udevd Not
tainted 4.16.4-ojab #3
Apr 25 23:39:36 ojab kernel: [ 1.886524] Call Trace:
Apr 25 23:39:36 ojab kernel: [ 1.887060] dump_stack+0x67/0x93
Apr 25 23:39:36 ojab kernel: [ 1.887130] swiotlb_alloc_coherent+0x1da/0x1f0
Apr 25 23:39:36 ojab kernel: [ 1.887237] amdgpu_ih_ring_init+0x1fc/0x2c0
[amdgpu]
Apr 25 23:39:36 ojab kernel: [ 1.887339] vega10_ih_sw_init+0x18/0xb0
[amdgpu]
Apr 25 23:39:36 ojab kernel: [ 1.887430] amdgpu_device_init+0xa35/0x11f0
[amdgpu]
Apr 25 23:39:36 ojab kernel: [ 1.887523] amdgpu_driver_load_kms+0x56/0x170
[amdgpu]
Apr 25 23:39:36 ojab kernel: [ 1.887605] drm_dev_register+0x166/0x1f0 [drm]
Apr 25 23:39:36 ojab kernel: [ 1.887695] amdgpu_pci_probe+0x113/0x1a0
[amdgpu]
Apr 25 23:39:36 ojab kernel: [ 1.887770] pci_device_probe+0xc9/0x140
Apr 25 23:39:36 ojab kernel: [ 1.887842] driver_probe_device+0x281/0x370
Apr 25 23:39:36 ojab kernel: [ 1.887916] __driver_attach+0xa9/0xb0
Apr 25 23:39:36 ojab kernel: [ 1.887986] ? driver_probe_device+0x370/0x370
Apr 25 23:39:36 ojab kernel: [ 1.888072] bus_for_each_dev+0x88/0xd0
Apr 25 23:39:36 ojab kernel: [ 1.888143] bus_add_driver+0x1b4/0x230
Apr 25 23:39:36 ojab kernel: [ 1.888215] ? 0xffffffffc1127000
Apr 25 23:39:36 ojab kernel: [ 1.888284] driver_register+0x57/0xc0
Apr 25 23:39:36 ojab kernel: [ 1.888355] ? 0xffffffffc1127000
Apr 25 23:39:36 ojab kernel: [ 1.888425] do_one_initcall+0x5c/0x1c0
Apr 25 23:39:36 ojab kernel: [ 1.888496] do_init_module+0x5e/0x20d
Apr 25 23:39:36 ojab kernel: [ 1.888576] load_module+0x137f/0x19b0
Apr 25 23:39:36 ojab kernel: [ 1.888656] ? m_show+0x1e0/0x1e0
Apr 25 23:39:36 ojab kernel: [ 1.888735] SYSC_init_module+0x102/0x150
Apr 25 23:39:36 ojab kernel: [ 1.888818] do_syscall_64+0x69/0x120
Apr 25 23:39:36 ojab kernel: [ 1.888899]
entry_SYSCALL_64_after_hwframe+0x42/0xb7
Apr 25 23:39:36 ojab kernel: [ 1.888988] RIP: 0033:0x7f1eae06551a
Apr 25 23:39:36 ojab kernel: [ 1.889079] RSP: 002b:00007ffcce027138 EFLAGS:
00000246 ORIG_RAX: 00000000000000af
Apr 25 23:39:36 ojab kernel: [ 1.889194] RAX: ffffffffffffffda RBX:
00000000025ab5a0 RCX: 00007f1eae06551a
Apr 25 23:39:36 ojab kernel: [ 1.889290] RDX: 00007f1eaec96e9d RSI:
0000000000465290 RDI: 0000000002719670
Apr 25 23:39:36 ojab kernel: [ 1.889386] RBP: 00007f1eaec96e9d R08:
00000000ffffffff R09: 00000000025af020
Apr 25 23:39:36 ojab kernel: [ 1.889483] R10: 0000000000000000 R11:
0000000000000246 R12: 0000000002719670
Apr 25 23:39:36 ojab kernel: [ 1.889579] R13: 00000000025ab7f0 R14:
0000000000020000 R15: 0000000001c9c380
Apr 25 23:39:36 ojab kernel: [ 1.889694] [drm:amdgpu_device_init [amdgpu]]
*ERROR* sw_init of IP block <vega10_ih> failed -12
Apr 25 23:39:36 ojab kernel: [ 1.889815] amdgpu 0000:08:00.0:
amdgpu_device_ip_init failed</pre>
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