<html>
    <head>
      <base href="https://bugs.freedesktop.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - WARNING: CPU: 0 PID: 370 at drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c:1355 dcn_bw_update_from_pplib+0x16b/0x280 [amdgpu]"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=107296">107296</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>WARNING: CPU: 0 PID: 370 at drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c:1355 dcn_bw_update_from_pplib+0x16b/0x280 [amdgpu]
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>DRI git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </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>pmenzel+bugs.freedesktop@molgen.mpg.de
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=140716" name="attach_140716" title="Linux 4.18-rc5+ (with merged drm-tip) messages">attachment 140716</a> <a href="attachment.cgi?id=140716&action=edit" title="Linux 4.18-rc5+ (with merged drm-tip) messages">[details]</a></span>
Linux 4.18-rc5+ (with merged drm-tip) messages

On a MSI B350M MORTAR (MS-7A37) with AMD Ryzen 3 2200G with Radeon Vega
Graphics and with Linux 4.18-rc5+ with merged drm-tip the warning below is
always shown.

15.355: [   24.263999] WARNING: CPU: 0 PID: 370 at
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c:1355
dcn_bw_update_from_pplib+0x16b/0x280 [amdgpu]
15.356: [   24.294351] Modules linked in: nls_ascii nls_cp437 vfat fat amdkfd
snd_hda_codec_realtek amdgpu(+) snd_hda_codec_generic chash snd_hda_codec_hdmi
efi_pstore i2c_algo_bit edac_mce_amd snd_hda_intel snd_hda_codec gpu_sched ccp
rng_core drm_kms_helper snd_hda_core syscopyarea sysfillrect r8169 kvm
sysimgblt irqbypass fb_sys_fops snd_hwdep ttm sp5100_tco crct10dif_pclmul
snd_pcm crc32_pclmul snd_timer pcspkr snd sg ghash_clmulni_intel k10temp
efivars mii drm soundcore i2c_piix4 video button efivarfs ip_tables x_tables
autofs4 ext4 crc32c_generic crc16 mbcache jbd2 fscrypto dm_crypt dm_mod sd_mod
evdev hid_generic usbhid hid crc32c_intel aesni_intel ahci xhci_pci aes_x86_64
libahci crypto_simd xhci_hcd libata cryptd glue_helper usbcore scsi_mod
gpio_amdpt gpio_generic
15.360: [   24.365932] CPU: 0 PID: 370 Comm: systemd-udevd Not tainted
4.18.0-rc5+ #2
15.360: [   24.365933] Hardware name: MSI MS-7A37/B350M MORTAR (MS-7A37), BIOS
1.G1 05/17/2018
15.361: [   24.365984] RIP: 0010:dcn_bw_update_from_pplib+0x16b/0x280 [amdgpu]
15.361: [   24.388384] Code: d8 ca d8 f1 d9 5a 50 8b 44 fc 14 49 8b 94 24 70 01
00 00 48 89 04 24 df 2c 24 d8 f1 db 42 78 de c9 de ca de f9 d9 5a 4c eb 02 <0f>
0b 48 89 da be 04 00 00 00 48 89 ef e8 33 5a fe ff 84 c0 0f 84 
15.363: [   24.388405] RSP: 0018:ffffa31f0259f7c8 EFLAGS: 00010246
15.363: [   24.414366] RAX: 0000000000000001 RBX: ffffa31f0259f828 RCX:
0000000000000000
15.364: [   24.414367] RDX: 0000000000000000 RSI: 0000000000000004 RDI:
ffff97d5de816730
15.365: [   24.414368] RBP: ffff97d5c3f09d40 R08: 00000028c4bad032 R09:
000000000000001f
15.365: [   24.414369] R10: 0000000000000af4 R11: 00000000003c7cb4 R12:
ffff97d5c0e3d000
15.366: [   24.445133] R13: ffff97d5c825dd00 R14: ffff97d5c0e3d000 R15:
0000000000000000
15.366: [   24.445134] FS:  00007fd442ec88c0(0000) GS:ffff97d5de800000(0000)
knlGS:0000000000000000
15.367: [   24.445135] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
15.367: [   24.467698] CR2: 00007fd34c0034c8 CR3: 0000000403e6c000 CR4:
00000000003406f0
15.368: [   24.467699] Call Trace:
15.368: [   24.467748]  dcn10_create_resource_pool+0x756/0x990 [amdgpu]
15.369: [   24.484250]  dc_create_resource_pool+0x42/0x180 [amdgpu]
15.369: [   24.484254]  ? __kmalloc+0x1b4/0x250
15.369: [   24.493877]  ? dal_gpio_service_create+0x8f/0x110 [amdgpu]
15.370: [   24.493922]  dc_create+0x228/0x650 [amdgpu]
15.370: [   24.504339]  ? amdgpu_cgs_create_device+0x23/0x50 [amdgpu]
15.371: [   24.504386]  dm_hw_init+0xc8/0x130 [amdgpu]
15.371: [   24.514764]  amdgpu_device_init.cold.28+0x10ea/0x1295 [amdgpu]
15.372: [   24.514803]  amdgpu_driver_load_kms+0x86/0x2c0 [amdgpu]
15.372: [   24.526681]  drm_dev_register+0x109/0x140 [drm]
15.372: [   24.526720]  amdgpu_pci_probe+0x13c/0x1c0 [amdgpu]
15.373: [   24.536741]  local_pci_probe+0x41/0x90
15.373: [   24.536743]  pci_device_probe+0x189/0x1a0
15.373: [   24.545118]  driver_probe_device+0x2b9/0x460
15.374: [   24.545120]  __driver_attach+0xdd/0x110
15.374: [   24.553853]  ? driver_probe_device+0x460/0x460
15.374: [   24.553855]  bus_for_each_dev+0x76/0xc0
15.375: [   24.562813]  ? klist_add_tail+0x3b/0x70
15.375: [   24.562814]  bus_add_driver+0x152/0x230
15.375: [   24.571094]  ? 0xffffffffc08bf000
15.376: [   24.571096]  driver_register+0x6b/0xb0
15.376: [   24.578735]  ? 0xffffffffc08bf000
15.376: [   24.578737]  do_one_initcall+0x46/0x1c3
15.377: [   24.578739]  ? kmem_cache_alloc_trace+0x183/0x1f0
15.377: [   24.591626]  ? do_init_module+0x22/0x210
15.377: [   24.591628]  do_init_module+0x5a/0x210
15.378: [   24.591630]  load_module+0x21c4/0x2410
15.378: [   24.603927]  ? vfs_read+0x110/0x140
15.378: [   24.603929]  ? __do_sys_finit_module+0xa8/0x110
15.379: [   24.612601]  __do_sys_finit_module+0xa8/0x110
15.379: [   24.612602]  do_syscall_64+0x55/0xe0
15.379: [   24.621178]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
15.380: [   24.621179] RIP: 0033:0x7fd443f25a79
15.380: [   24.630489] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00
48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48>
3d 01 f0 ff ff 73 01 c3 48 8b 0d df 43 0c 00 f7 d8 64 89 01 48 
15.382: [   24.650822] RSP: 002b:00007ffffe006958 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
15.382: [   24.650823] RAX: ffffffffffffffda RBX: 000056217c76ecc0 RCX:
00007fd443f25a79
15.383: [   24.650825] RDX: 0000000000000000 RSI: 00007fd443c2d0ed RDI:
0000000000000018
15.383: [   24.674422] RBP: 00007fd443c2d0ed R08: 0000000000000000 R09:
0000000000000000
15.384: [   24.674422] R10: 0000000000000018 R11: 0000000000000246 R12:
0000000000000000
15.385: [   24.674423] R13: 000056217c76b5d0 R14: 0000000000020000 R15:
000056217c76ecc0
15.385: [   24.674470] WARNING: CPU: 0 PID: 370 at
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dcn_calcs.c:1355
dcn_bw_update_from_pplib+0x16b/0x280 [amdgpu]
15.386: [   24.712143] ---[ end trace 115af7e91900bac6 ]---</pre>
        </div>
      </p>


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