X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org From: "Dave Korn" To: References: <042c01c836a1$e6c0d1d0$2e08a8c0@CAM.ARTIMI.COM> <20071205123104.GH26345@calimero.vinschen.de> <04a001c8374f$a58b1a00$2e08a8c0@CAM.ARTIMI.COM> <20071205153214.GI26345@calimero.vinschen.de> Subject: RE: Odd behaviour of __cygwin_environ? Date: Wed, 5 Dec 2007 15:50:31 -0000 Message-ID: <04a801c83756$90a8b5f0$2e08a8c0@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: <20071205153214.GI26345@calimero.vinschen.de> 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 On 05 December 2007 15:32, Corinna Vinschen wrote: > On Dec 5 15:00, Dave Korn wrote: >> On 05 December 2007 12:31, Corinna Vinschen wrote: >>> Keep in mind that the size of the >>> native environment block is restricted to 32K. >> >> I thought when cygexec was in effect the posix environment and >> commandline were passed around-behind-the-back-of CreateProcess, bypassing >> that limit? Or does it only handle the commandline but not environment? > > It also handles the environment block. Is there a native process in the > call chain, maybe? Nope, it's all cygwin through and through. Big project using make/gcc/binutils, nothing non-posix. > If not, I don't see any other chance than to debug > this further. spawn_guts() and the build_env() functions might be good > starting points for that. Thanks, that's what I'm trying right now. Disappointingly it disappears under strace. That might have been down to the strace-is-a-win32-process-launching-a-cygwin-process anomaly, which is why I'm hacking about the dll. Early results suggest that, even though I'm not launching under strace, but instead enabling it (by calling strace.hello() during initial_env() if I detect an environment variable in the win32 environment), the problem still disappears, which makes me suspicious of it still being a race somehow. 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/