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We're seeing cases where we see tracebacks when creating directories in SSTATE_DIR on an NFS server. The issue is that we see EEXISTS being returned but isdir() is False, likely when multiple clients try and create the same directory at the same time. This is likely a relatively well known issue with NFS's attribute cache. There is also a way to clear the attribute cache, which is to call opendir() on the parent directory. That is what this workaround does. In the rare case we're about to fail, try that using os.listdir() and see if it helps. Testing showed that it would "fix" several cases where we'd have had failures otherwise. [YOCTO #16351] (Bitbake rev: cff3be6f664f8f07a40727ff63eeeb24d6f5e00b) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit 3a99c26fa581d70ed67bd08a5e0e0d0b18369a7c) Signed-off-by: Yoann Congal <yoann.congal@smile.fr> Signed-off-by: Paul Barker <paul@pbarker.dev>