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I'm having a problem with the 20050106 snapshot as well as my own DLL build from CVS HEAD on 20050107. I've also seen these problems in snapshots from late last year. I've just now isolated a small test case. The problem is with bash killing native processes. I have a bash script that starts a native process in the background, installs a signal handler for SIGINT, grabs the pid from the background process, and then issues wait. The signal handler tries to kill the pid that was captured. With 1.5.12 and a DLL built from CVS on 11/19/2004, this works just fine. With the latest snapshot, I often (but not always) get a "Bad file descriptor" error from kill. I've enclosed a C file with the source for a simple program that sleeps for the time specified on the command-line. I compiled this as a WIN32 application using % gcc -o sleepMingw -mno-cygwin sleepMingw.c I've also enclosed the driver script sleepTest.sh. Here's the output from one run: + ./sleepMingw 30 + pid=4408 + trap enTrapSIGINT 2 + wait ++ enTrapSIGINT ++ echo 'killing process 4408' killing process 4408 ++ kill 4408 ./sleepTest.sh: line 11: kill: (4408) - Bad file descriptor ++ exit The processes end up as <defunct> in procps. Attempts to kill the processes also result in the Bad file descriptor error. cygcheck output is also attached. I should note that I'm running this under WinXP SP2 with hyperthreading enabled. I can try disabling hyperthreading if requested.
#include <unistd.h> int main (int argc, char** argv) { int sleepSecs = atoi(argv[1]); sleep(sleepSecs * 1000); exit(0); }
#!/bin/bash set -x ./sleepMingw $* & enTrapSIGINT () { echo "killing process $pid"; kill $pid; exit; } pid=$! trap enTrapSIGINT 2 wait
Attachment:
cygcheck.out
Description: Text document
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