Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <4360C19D.9050102@byu.net> Date: Thu, 27 Oct 2005 06:01:33 -0600 From: Eric Blake Reply-To: cygwin@cygwin.com User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) MIME-Version: 1.0 To: "Sarcar, Shourya C (GE Healthcare)" , cygwin@cygwin.com Subject: Re: CPU usage issue with bash References: <7D2EA86E0DEB6F46994CDE7BA21B9681131FABA7@BANMLVEM02.e2k.ad.ge.com> In-Reply-To: <7D2EA86E0DEB6F46994CDE7BA21B9681131FABA7@BANMLVEM02.e2k.ad.ge.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 http://cygwin.com/acronyms/#PPIOSPE According to Sarcar, Shourya C (GE Healthcare) on 10/27/2005 1:29 AM: >>Now it looks like you have two copies of cygwin installed, >>and that c:\insite\bin is still trying to compete with >>c:\cygwin\bin. Cygwin does not work well if you have two >>copies of cygwin1.dll, even if the two copies are the same >>version. I don't know what insite is trying to provide, but >>it is probably the source of your problems. > > > > Thanks for the help. I am struggling with a legacy system, so do not > have the answers right away. > I will try to establish some sanity and then ask some more questions if > I am still stuck. > > Is there a specific reason why two versions of Cygwin do not coexist > well ? Yes. cygwin1.dll shares memory between all cygwin processes, and if you have two versions of the .dll, the shared memory region is incompatible between them and you are practically guaranteed a crash or other unexpected behavior. - -- Life is short - so eat dessert first! Eric Blake ebb9@byu.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFDYMGd84KuGfSFAYARAn5bAJ9u8WMyrpCjklzgcJI0NDrIkzU3sQCaApBH XJNop1P8HlRghpIE/SjPW0g= =BkZl -----END PGP SIGNATURE----- -- 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/