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GPU page fault

尽管许多GPU都支持页面错误,但并非所有都支持。 一些GPU使用下列方式响应内存错误:

  • 位存储桶写入(bit-bucket writes)
  • 读取模拟数据(如零)(reading simulated data (for example, zeros))
  • 或仅挂起(by simply hanging)
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[  712.873530] amdgpu 0001:01:00.0: GPU fault detected: 146 0x0218082c
[ 712.878462] pcieport 0001:00:00.0: AER: Multiple Corrected error received: id=0000
[ 712.878469] pcieport 0001:00:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=0000(Receiver ID)
[ 712.878471] pcieport 0001:00:00.0: device [1def:e006] error status/mask=00000001/00002000
[ 712.878472] pcieport 0001:00:00.0: [ 0] Receiver Error (First)
[ 712.912617] amdgpu 0001:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00101043
[ 712.920085] amdgpu 0001:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0400802C
[ 712.927554] amdgpu 0001:01:00.0: VM fault (0x2c, vmid 2) at page 1052739, read from 'TC2' (0x54433200) (8)
[ 712.937273] amdgpu 0001:01:00.0: GPU fault detected: 146 0x03403d0c
[ 712.943527] amdgpu 0001:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00101468
[ 712.950995] amdgpu 0001:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0403D00C
[ 712.958463] amdgpu 0001:01:00.0: VM fault (0x0c, vmid 2) at page 1053800, read from 'SDM1' (0x53444d31) (61)
[ 712.968329] amdgpu 0001:01:00.0: GPU fault detected: 146 0x03a0770c
[ 712.974582] amdgpu 0001:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00101474
[ 712.982050] amdgpu 0001:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0A07700C
[ 712.989519] amdgpu 0001:01:00.0: VM fault (0x0c, vmid 5) at page 1053812, read from 'SDM0' (0x53444d30) (119)

造成的现象

系统整体卡住,有时鼠标键盘无响应,但是可以通过ssh登录系统,并且测试无法kill掉xorg

GPU页错误

A GPU page fault commonly occurs under one of these conditions. An application mistakenly executes work on the GPU that references a deleted object. This is one of the top reasons for an unexpected device removal. An application mistakenly executes work on the GPU that accesses an evicted resource, or a non-resident tile.

GPU 页面错误通常在下列情况之一下发生:

  • 应用程序在 GPU 上错误地执行了应用已删除的对象的作业。 这是意外删除设备的主要原因之一。
  • 应用程序错误地在 GPU 上执行了访问已逐出的资源或非驻留磁贴的作业。
  • 着色器引用未初始化的或过时的描述符。
  • 着色器索引超出根绑定末尾。

参考

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  • 本文作者: Winddoing
  • 本文链接: https://winddoing.github.io/post/793.html
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