Bug #20471
Updated by budiljak (Benjamin Udiljak) 7 months ago
Hi,
in my Rails application I have the requirement to create a file and copy it to another place on the same windows share. But if I write the file with `File` class and try to copy it with `FileUtils.cp` it hangs indefinitely without any error message. I can't even kill the ruby process.
You can easily reproduce the bug by entering this in IRB:
```
filename = "/mnt/windows_share/abc"; File.open(filename, 'wb') { |f| f.write("123" * 1000) }; FileUtils.cp(filename, filename + "d")
```
I tested this on a Ubuntu 22.04 server in the AWS cloud.
I also tried `f.fsync` , `f.fdatasync` , `f.flush`, but it didn't help.
Probably it's a problem in connection with the `cifs-utils` package. The negotiated SMB protocol version for the mount is `3.1.1`.
Please come back to me if you need further information.
Regards!
Ben