witch_t *naviJul 24, 2025
https://stackoverflow.com/questions/33051108/how-to-get-around-the-linux-too-many-arguments-limit/33278482

> I have to pass 256Kb of text as an argument to the "aws sqs"

what, uhhh, what

> MAX_ARG_STRLEN is defined as 32 times the page size in linux/include/uapi/linux/binfmts.h:
> The default page size is 4 KB so you cannot pass arguments longer than 128 KB.
> I modified linux/include/uapi/linux/binfmts.h to #define MAX_ARG_STRLEN (PAGE_SIZE * 64), recompiled my kernel and now your code produces

casually patching the kernel to send a quarter megabyte as a *single* argument oh my god i'm laughing hard
Show threadkloenkJul 24, 2025
@navi well in the early rust for Linux days we hit this limit with the passing kconfig options to rustc. Fun times
Show threadwitch_t *naviJul 24, 2025
@kloenk as a single argument? this isn't the whole argument list, this is *just* argv[1]
Show threadkloenk
@navi ah oh. Then we hit the other limit. Many many arguments. Way to many
Jul 24, 2025 at 2:44pmWeb
Show threadkloenkJul 24, 2025
@navi the kernel existed somewhere on the limit, and then I broke it with just adding O=build to my make flags (I like a separate build dir for the kernel)