Messages in this thread | | | From | Andy Shevchenko <> | Date | Tue, 4 Apr 2017 00:05:10 +0300 | Subject | Re: [PATCH v2 0/5] minitty: a minimal TTY layer alternative for embedded systems |
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+Cc: Tom
Summon Tom to the discussion. He tried once hard to shrink a Linux kernel to something working in 1M+ RAM on x86.
Tom, sorry, I recall this a bit late, perhaps you might be interested in reading discussion from the beginning.
On Mon, Apr 3, 2017 at 9:14 PM, Geert Uytterhoeven <geert@linux-m68k.org> wrote: > On Mon, Apr 3, 2017 at 12:44 AM, Stuart Longland > <stuartl@longlandclan.id.au> wrote: >> On 03/04/17 07:41, Nicolas Pitre wrote: >>>> No PTYs seems like a big limitation. This means no sshd? >>> Again, my ultimate system target is in the sub-megabyte of RAM. I >>> really doubt you'll be able to fit an SSH server in there even if PTYs >>> were supported, unless sshd (or dropbear) can be made really tiny. >>> Otherwise you most probably have sufficient resources to run the regular >>> TTY code. >> >> Are we talking small microcontrollers here? The smallest machine in >> terms of RAM I ever recall running Linux on was a 386SX/25 MHz with 4MB >> RAM, and that had a MMU. > > Let's halve that. I once tried and ran Linux in 2 MiB, incl. X, twm, and xterm. > Of course with swap enabled. And swapping like hell.
-- With Best Regards, Andy Shevchenko
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