Cannot allocate memory

[biswaKL]

Hi, While running below command
sudo insmod soft_uart.ko

I am getting error like:
insmod: ERROR: could not insert module soft_uart.ko: Cannot allocate memory

This is in Debian buster latest raspbian.

[ahmad7091]

I have the same problem. No solution?

[dtyuterev]

I have the same problem. No solution?

check dmesg.
stack trace will be printed.

[gaberisch]

I bumped into the same issue, on a Raspberry Pi Zero W Rev 1.1,
(after fixing some obvious compilation error)

the problem was I need to add a 512 offset to the GPIO PIN numbers.
so for example: static int gpio_tx = 17 + 512; and static int gpio_rx = 27 + 512;

this offset apparently varies across raspberry pis.
hope that helps. :)