Hello. Loaded cygwin a few weeks ago, but after windows 10 update,
mintty term fails to start.
Versions:
cygwin 3.1.6-1
OS Name Microsoft Windows 10 Home
Version 10.0.19041 Build 19041
When problem first noticed:
Error: Could not fork child process: Resource temporarily unavailable (-1).
DLL rebasing may be required; see 'rebaseall / rebase --help'.
(and terminal allows no typing)
When attempt is made to add dll, bash and some other individual
exceptions to firewall ASLR settings, Mintty starts & shell commands
such as echo and pwd will work, but commands from /bin (i.e. ls, ln,
grep, vi, cat, which) return nothing. Maybe more exceptions needed, but
which ones?
To get cygwin working a usual, these gross windows defender firewall
changes were made:
Windows Security
App & browser control
Exploit protection
Force randomization for images (Mandatory ASLR)
Force relocation of images not compiled with /DYNAMICBASE
-> Off by default [Mintty working]
-> On by default [Mintyy not working]
Randomize memory allocations (Bottom-up ASLR)
Randomize locations for virtual memory allocations.
-> Off by default [Mintyy working]
-> On by default [Mintyy not working]
High-entropy ASLR
Increase variability when using Randomize memory allocations
(Bottom-up ASLR)
-> Off by default [Mintty working]
-> On by default [Mintty not working]
When Cyg/Mintty is working with above gross changes:
$ cd /usr
$ ln -s /bin /usr/bin
$ ls -i | grep bin
1125899907459844 bin/
562949954038681 sbin/
$ cd ..
$ ls -i | grep bin
1125899907459844 bin/
562949954038681 sbin/
$ ps -ef | grep -i min
XXXXX 649 1 ? 13:18:14 /usr/bin/mintty
Thanks in advance!!
-- Michael Moats
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