Here's how to reproduce it: 1. install w3m-el
2. start Xwin, and then start emacs with: emacs.exe -q -l ~/1.el 3. Press M-x w3m in emacs to start w3m 4. Press g in *w3m* buffer, type http://www.cnn.com/ (I use this URL because it contains many images. A site with few images will not reproduce this). 5. Press T in the *w3m* buffer to toggle inline images, then Emacs will segfault. And sometimes it may complain "doing vfork resource temporarily unavailable" instead of segfault. The contents of ~/1.el: (progn (setq load-path (cons "~/tools/emacs-site-lisp/w3m/" load-path)) (load "w3m")) Note that I have installed w3m at ~/tools/emacs-site-lisp/w3m/. I tried debugging with gdb, after building cygwin1.dll and emacs-23.0.96 (applied /usr/src/emacs-23.0.92-10.src.patch first), and here's the bt: Program received signal SIGSEGV, Segmentation fault. 0x6109443a in fhandler_pipe::create (fhs=0x0, psize=60000, mode=164) at ../../.././../winsup/cygwin/pipe.cc:325 325 fhs[1]->init (w, FILE_CREATE_PIPE_INSTANCE | GENERIC_WRITE, mode); Current language: auto; currently c++ (gdb) bt #0 0x6109443a in fhandler_pipe::create (fhs=0x0, psize=60000, mode=164) at ../../.././../winsup/cygwin/pipe.cc:325 #1 0x7c802542 in WaitForSingleObject () from /cygdrive/c/WINDOWS/system32/kernel32.dll #2 0x610b8cd3 in sig_send (p=0x60ff0000, s...@0x228ff4, tls=0x0) at ../../.././../winsup/cygwin/sigproc.cc:728 #3 0x610b5987 in _pinfo::kill (this=0x60ff0000, s...@0x228ff4) at ../../.././../winsup/cygwin/signal.cc:210 #4 0x610b5d9b in kill0 (pid=4084, s...@0x228ff4) at ../../.././../winsup/cygwin/signal.cc:252 #5 0x610b5ec1 in kill (pid=4084, sig=11) at ../../.././../winsup/cygwin/signal.cc:270 #6 0x610b3118 in _sigfe () from /usr/bin/cygwin1.dll #7 0x00758801 in bss_sbrk_buffer () #8 0x002295b4 in ?? () #9 0x00000400 in ?? () #10 0x0022ce64 in ?? () #11 0x0022919c in ?? () #12 0x610283e7 in _cygtls::call_signal_handler (this=0xff4) at ../../.././../winsup/cygwin/exceptions.cc:1389 Backtrace stopped: frame did not save the PC Lisp Backtrace: "start-process" (0x229a84) "apply" (0x229b30) "let*" (0x229cb8) "let" (0x229e38) "w3m-process-with-environment" (0x229f08) "let" (0x22a088) ... (omitted). -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple