> On 25 Jul 2025, at 22:37, Guy Harris <[email protected]> wrote: > > On Jul 25, 2025, at 6:07 AM, Hans Åberg <[email protected]> wrote: > >> They have a given program, which they cannot change, but apparently can >> accept 256 kB of text in arguments, and the preferred workaround is to >> recompile the kernel. > > On which kernel is this? As per my earlier mail, one version of the Darwin > kernel (macOS, iOS, etc.) has a 1 MB ARG_MAX (and it's , and one version of > the Linux kernel has a 2 MB ARG_MAX. My Solaris 10 VM also reports 1 MB, and > *that* limit dates back to at least SunOS 4.0. So *those* kernels have an > ARG_MAX that's 4x to 8x larger than 256 kB; even if you have a *lot* of > environment variables, that shouldn't be a problem. > > "Recompile the kernel" doesn't apply to AIX or HP-UX or other commercial > UN*Xes; is this a *BSD or something such as that?
It is in the link in my first post, detailing how to do it on a Linux kernel. One can also take down and compile XNU, with people on their mailing list asking how to do it.
