From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM11-CO1-obe.outbound.protection.outlook.com (mail-co1nam11on2137.outbound.protection.outlook.com [40.107.220.137]) by sourceware.org (Postfix) with ESMTPS id A4FE0386F413 for ; Wed, 2 Sep 2020 22:25:23 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org A4FE0386F413 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=SMqpKsJB1BW4VGHa8OCYAPT8SDQOHICFM78P0IbJmU8nsosI6rV9rmhaGTqsinlcoKyN/knBki2ojIsrJSxPMFVH24niBXmp/ASWGp4efDWqezQVJjIfBvivddyQP9Hr3nCQMTClwIfkounudd+RrxD2YalxensWTA05UStCObs0ccUf/53c1JeOFnJ4afAicZtLOWSNjJY8sGPGsOSioVIiW8PPMdK5+aakRuZFlLuCATAATMU0cumus7aoG8grVS0dxM7hUWeKBzHx7MFhaDiivEzv7LbNm+4+4hBlEY143wB+vp3hkX6mATRMlKoFHZKokMb/mT2FScCaZ4KEDg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=9ZoDsW8851DVRPc+l3FJ7KfdKUOH9iy+wmlZ2TI4ut0=; 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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!! There was a recent discussion about this issue here: https://sourceware.org/pipermail/cygwin/2020-August/245973.html