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: <42BD72A8.105@byu.net> Date: Sat, 25 Jun 2005 09:05:12 -0600 From: Eric Blake User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: Bash 3.0-2 and kill References: <20050624223131.GA27592@trixie.casa.cgf.cx> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Igor Pechtchanski on 6/24/2005 10:50 PM: >> >>Given that if cygwin was this broken all sorts of other things would be >>broken as well, this is more likely a problem with bash. > > > One reason for my guess was that I recalled discussions of bash using > pretty specialized spawn techniques, and it was likely to have some corner > case interaction with signal handling that normal programs wouldn't > encounter. There may also be something different about the SIGCHLD that > bash is getting when the child is killed with SIGKILL. But that was no > more than a guess, and yes, it's quite possible that there's a bug in the > bash signal handler. I wouldn't at all be surprised if it is a bash bug, since I blindly forward-ported the job handling tweaks made for cygwin in 2.05b-17 to 3.0 without seeing what else changed upstream in 3.0. I am still trying to reproduce the crash with a debugging build to get a stacktrace, and haven't succeeded at it yet, so a more exact formula from the OP would indeed be useful. Also, for those who have seen the crash, please include in your report what "set -o" and "shopt" display, since some of the shell options affect the job handling behavior. - -- Life is short - so eat dessert first! Eric Blake ebb9@byu.net cygwin bash maintainer -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCvXKo84KuGfSFAYARAjNxAKClaJvtWX/nUlgrIkO9N1czMiwLggCgszKu mYVPqPz+n+Ag3tNVcoZUu0U= =Fxd8 -----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/