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It was reported that dm-integrity runs out of vmalloc space on 32-bit architectures. On x86, there is only 128MiB vmalloc space and dm-integrity consumes it quickly because it has a 64MiB journal and 8MiB recalculate buffer. Fix this by reducing the size of the journal to 4MiB and the size of the recalculate buffer to 1MiB, so that multiple dm-integrity devices can be created and activated on 32-bit architectures. Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.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.