X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org From: "Dave Korn" To: References: <001901c89348$cd86c8b0$06bca8c0@bigtower> <47F19881.2080508@byu.net> Subject: RE: postinstall hang Date: Tue, 1 Apr 2008 15:01:35 +0100 Message-ID: <00b001c89400$e59d20d0$2708a8c0@CAM.ARTIMI.COM> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-Reply-To: Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 Popper, Samuel (US SSA) wrote on 01 April 2008 14:47: > > > $ NUM=1; while true ; do echo `echo $NUM` ; NUM=$(( $NUM + 1 )); done > > > > > > Hangs pretty quickly, > > > > because it forks a huge number of processes, and each fork is likely to > > be tripped up by a BLODA > > As I understand it, that should fork once per iteration. > > Running with cut-down PATH: > > [samuel.popper@localhost ~]$ echo $PATH > /usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin > [samuel.popper@localhost ~]$ NUM=1; while true ; do echo `echo $NUM` ; > NUM=$(( $NUM + 1 )); done 1 > 2 > > Here, it hung after 2 iterations. The default /etc/profile forks more > than that! FWIW, can't reproduce it here on XPSP2 with cygwin 1.5.23. > Other than sneaking in via PATH, the only moderately intrusive thing > running on the system is Sysinternal's ProcessExplorer. But I tried > running with that closed, and it made no difference. > > Is there anything else that could contribute to BLODA? Yes, absolutely anything that hooks or injects into processes. Try using procexp to get a list of DLLs from the stuck bash processes, and let us know what's there. cheers, DaveK -- Can't think of a witty .sigline today.... -- 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/