no idea, i humbly suggest to try open with O_RDWR flag set instead of O_WRONLY. I also suggest you to write down you OS, and the kind of fs you ar using (mounted?).

more: do POSIX::open() works?

this may give more information to fix it.

In reply to Re: open vs. sysopen by oha
in thread open vs. sysopen by sheep

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