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ca3aa28ea6
commit d0f038104fa37380e2a725e669508e43d0c503e9 upstream. There is a recent ML report that mounting a large fs backed by hardware RAID56 controller (with one device missing) took too much time, and systemd seems to kill the mount attempt. In that case, the only error message is: BTRFS error (device sdj): open_ctree failed There is no reason on why the failure happened, making it very hard to understand the reason. At least output the error number (in the particular case it should be -EINTR) to provide some clue. Link: https://lore.kernel.org/linux-btrfs/9b9c4d2810abcca2f9f76e32220ed9a90febb235.camel@scientia.org/ Reported-by: Christoph Anton Mitterer <calestyo@scientia.org> Cc: stable@vger.kernel.org Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.