Craig> At 03:40 PM 10/23/99 +0200, Adrian Aichner wrote: >> Craig> create_child: exe=c:\BIN32\ls.exe,cmdline=c:\BIN32\ls.exe Craig> create_child.CreateProcess leads child PID -725391, Craig> changing to PID 725391 Fatal error: assertion failed, file Craig> sysdep.c, line 353, pid != NULL >> Hi Craig, >> did you ever see a message like: >> Fcall_process_internal.child_setup returns PID 725391, using PID -725391 Craig> No, I sent you all the messages that were printed. Hmmh, beats me ... Craig> How is os_subtype set? Maybe I can figure out what it is Craig> for Win98. See src/ntheap.c. It uses a SDK system information function called GetVersion(). If this hunk against callproc.c (part of the patch I just sent) does not produce any output (to the DOS box you started src\xemacs.exe from), then the os_subtype test is wrong: #ifdef WINDOWSNT pid = child_setup (filefd, fd1, fd_error, new_argv, (char *) XSTRING_DATA (current_dir)); + /* OpenProcess() as soon after child_setup as possible. It's too + late once the process terminated. */ + if (os_subtype == OS_WIN95) + { + stderr_out ("Fcall_process_internal.child_setup returns PID %d, using PID %d\n", pid, -pid); + /* create_child() in ntproc.c hacks PIDs for OS_WIN95 to fit + into Lisp_Int, i.e. negates them. Hence we have to use -pid + to get at the real PID for OS_WIN95. */ + pHandle = OpenProcess(PROCESS_ALL_ACCESS, 0, -pid); + } + else I'll take out that message if all works out well. If you have cygnus grep, please try this test-case if things work out: (dotimes (i 200 "grep test passed") (unless (= 2 (apply 'call-process "grep" nil '(t nil) nil (list "drivers" "c:\winnt\system.ini"))) (error "Incorrect call-process return value!"))) While the test is running please act unnatural. Move other applications like a madman, start cpu-intensive processes, and the like. This should check whether there's any danger the process goes away before we can obtain a handle for it. I haven't seen problems with this in recent versions of my patches on NT. Thanks, Adrian >> Please let me know. >> Adrian Craig> Craig