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c067da8781
When a filesystem goes read-only due to an error, multiple errors tend to be reported, some of which are knock-on failures. Logging fs_states, in btrfs_handle_fs_error() and btrfs_printk() helps distinguish the first error from subsequent messages which may only exist due to an error state. Under the new format, most initial errors will look like: `BTRFS: error (device loop0) in ...` while subsequent errors will begin with: `error (device loop0: state E) in ...` An initial transaction abort error will look like `error (device loop0: state A) in ...` and subsequent messages will contain `(device loop0: state EA) in ...` In addition to the error states we can also print other states that are temporary, like remounting, device replace, or indicate a global state that may affect functionality. Now implemented: E - filesystem error detected A - transaction aborted L - log tree errors M - remounting in progress R - device replace in progress C - data checksums not verified (mounted with ignoredatacsums) Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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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.