map_pci_memory: workaround for kernel race condition #1476
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eugeneia
commented
Apr 19, 2022
eugeneia
commented
Starting with 4.5, the kernel returns EINVAL for mmap() if compiled with CONFIG_IO_STRICT_DEVMEM=y. Unbinding the device is an asynchronous operation. map_pci_memory() waits for EINVAL to disappear or gives up after a timeout of 5 seconds. # Conflicts: # src/lib/hardware/pci.lua
# Conflicts: # src/lib/hardware/pci.lua
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