X-Spam-Check-By: sourceware.org Message-ID: <44835C24.30802@cygwin.com> Date: Sun, 04 Jun 2006 18:18:12 -0400 From: "Larry Hall (Cygwin)" Reply-To: cygwin AT cygwin DOT com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051223 Fedora/1.5-0.2.fc4.remi Thunderbird/1.5 Mnenhy/0.7.3.0 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: sshd: fork of unprivileged child failed References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Robin Walker wrote: > I have a system with Cygwin sshd installed that refuses to accept > connections. sshd is running and listening on port 22. > > In the Windows Application Log there are, for each failed connection > attempt, entries of the form: > > sshd: PID xxxx: fatal: fork of unprivileged child failed. > > In sshd.log there are entries of the form: > > 1893 [main] sshd 7720 C:\cygwin\usr\sbin\sshd.exe: *** fatal error - > recreate_mmaps_after_fork_failed > 9 [main] sshd 6788 child_copy: stack write copy failed, > 0x23DDA0..0x240000, done 0, windows pid 2350292, Win32 error 5 > 7 [main] sshd 6344 fhandler_dev_zero::fixup_mmap_after_fork: > requested 0x3F0000 != 0x0 mem alloc base 0x3F0000, state 0x1000, size > 4096, Win32 error 487 > 2029 [main] sshd 6344 C:\cygwin\usr\sbin\sshd.exe: *** fatal error - > recreate_mmaps_after_fork_failed > 8 [main] sshd 7868 child_copy: stack write copy failed, > 0x23DDA0..0x240000, done 0, windows pid 2350292, Win32 error 5 > 6 [main] sshd 6872 fhandler_dev_zero::fixup_mmap_after_fork: > requested 0x3F0000 != 0x0 mem alloc base 0x3F0000, state 0x1000, size > 4096, Win32 error 487 > 2487 [main] sshd 6872 C:\cygwin\usr\sbin\sshd.exe: *** fatal error - > recreate_mmaps_after_fork_failed > 10 [main] sshd 6336 child_copy: stack write copy failed, > 0x23DDA0..0x240000, done 0, windows pid 2350292, Win32 error 5 > > > Attempts by client ssh programs to connect are given: > Read from socket failed: Connection reset by peer > > This happens even for ssh 127.0.0.1 on the server itself. > > What do I need to do to get this sshd working? > > The first time this fault ever occurred on this system, a "rebaseall" > cured it. But the fault has returned some months later, and a > "rebaseall" no longer fixes it. > Did you try a recent snapshot? Otherwise, let's start back at the beginning. Please read and follow the problem reporting guidelines found at: Think about things that have changed about the time things stopped working for you. This includes things both a part of and external to Cygwin. -- Larry Hall http://www.rfk.com RFK Partners, Inc. (508) 893-9779 - RFK Office 838 Washington Street (508) 893-9889 - FAX Holliston, MA 01746 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/