From 4cb91d6f7b6680140e0011da1f7965c430920067 Mon Sep 17 00:00:00 2001 From: Luca Heltai Date: Tue, 10 May 2016 19:46:24 +0200 Subject: Added documentation on lockf/flock. --- lib/spack/docs/basic_usage.rst | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'lib') diff --git a/lib/spack/docs/basic_usage.rst b/lib/spack/docs/basic_usage.rst index 29791d98c4..58e67e4550 100644 --- a/lib/spack/docs/basic_usage.rst +++ b/lib/spack/docs/basic_usage.rst @@ -1246,6 +1246,38 @@ several variants: spack deactivate -a python +A word of warning +----------------------- + +If you run `spack find` and you get an error similar to the following: + +.. code-block:: sh + + $ ./spack find + Traceback (most recent call last): + File "./spack", line 176, in + main() + File "./spack", line 154, in main + return_val = command(parser, args) + File "./spack/lib/spack/spack/cmd/find.py", line 170, in find + specs = set(spack.installed_db.query(**q_args)) + File "./spack/lib/spack/spack/database.py", line 551, in query + with self.read_transaction(): + File "./spack/lib/spack/spack/database.py", line 598, in __enter__ + if self._enter() and self._acquire_fn: + File "./spack/lib/spack/spack/database.py", line 608, in _enter + return self._db.lock.acquire_read(self._timeout) + File "./spack/lib/spack/llnl/util/lock.py", line 103, in acquire_read + self._lock(fcntl.LOCK_SH, timeout) # can raise LockError. + File "./spack/lib/spack/llnl/util/lock.py", line 64, in _lock + fcntl.lockf(self._fd, op | fcntl.LOCK_NB) + IOError: [Errno 38] Function not implemented + + +it most likely means that you are trying to run spack in a shared +network filesystem without support for lockf/flock. Currently this is not +supported, and you should ask your system administrator to enable lockf/flock. + Getting Help ----------------------- -- cgit v1.2.3-60-g2f50