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Kernel BUG on probe #47

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mar-ven opened this issue Nov 17, 2023 · 2 comments
Open

Kernel BUG on probe #47

mar-ven opened this issue Nov 17, 2023 · 2 comments

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@mar-ven
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mar-ven commented Nov 17, 2023

I am experiencing a kernel BUG at Coyote/driver/fpga_dev.c:108 (accl_integration branch)
I am currently using an Alveo U280. Linux Kernel: 6.5

My steps:

  • I made sure that coyote driver was not loaded
  • I used Vivado Hardware Manager 2022.2 to load the bitstream
  • I ran sw/util/hot_reset
  • lspci | grep Xilinx shows that the board is correctly identified
  • I launch sudo insmod coyote_drv.ko

This last command hangs, because of the kernel bug.

I also experienced this error previously, with the same setup apart from the Linux kernel, which was 5.15

@mar-ven
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mar-ven commented Nov 17, 2023

Another important detail
sudo dmesg also gives the following print:
detected -268378664 virtual FPGA regions, -268379542 FPGA channels

@mar-ven
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mar-ven commented Nov 17, 2023

Some time before this error happened, I experienced another error: AMD-Vi IO_PAGE_FAULT, while I was launching the test.cpp file with options -f -r. This error happened before any test functions were actually run

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