By the way, does the same version of Cygwin have similar issue on the read
side?
Here some quick results:
read(fd, buffer, 90000000)
Returns total file size for a file and 65536 (errno=0) for pipes (cat
file | readtest). When repeating the read, the whole file is read until
read() returns 0. No problem here on any cygwin I tested.
write(fd, buffer, 90000000)
Returns 90000000 for a file.
Returns 90000000 for redirection (writetest > outfile)
Returns 90000000 for pipes (writetest | cat > outfile) on sane cygwins
and -1 / EAGAIN on the machine with the original problem.
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