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Detected by gnulib's unit tests. STC: $ cat foo.c #include <unistd.h> int main() { return dup2(0, -1); } $ gcc -o foo -g -Wall foo.c $ ./foo Segmentation fault (core dumped) cygwin 1.7.17-1 Running under gdb shows: 4 [main] foo 1220 exception::handle: Exception: STATUS_ACCESS_VIOLATION 702 [main] foo 1220 open_stackdumpfile: Dumping stack trace to foo.exe.stackdump Program received signal SIGSEGV, Segmentation fault. 0x610e9407 in dup2 () from /usr/bin/cygwin1.dll Expected results should be a normal failure with EBADF in errno. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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