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de164a7f19
Starting with commit7b937cc243("of: Create of_root if no dtb provided by firmware"), attempts to boot nios2 images with an external devicetree blob result in a crash. Kernel panic - not syncing: early_init_dt_alloc_memory_arch: Failed to allocate 72 bytes align=0x40 For nios2, a built-in devicetree blob always overrides devicetree blobs provided by ROMMON/BIOS. This includes the new dummy devicetree blob. Result is that the dummy devicetree blob is used even if an external devicetree blob is provided. Since the dummy devicetree blob does not include any memory information, memory allocations fail, resulting in the crash. To fix the problem, only use the built-in devicetree blob if CONFIG_NIOS2_DTB_SOURCE_BOOL is enabled. Fixes:7b937cc243("of: Create of_root if no dtb provided by firmware") Cc: Frank Rowand <frowand.list@gmail.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240322065419.162416-1-linux@roeck-us.net Signed-off-by: Rob Herring <robh@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 reStructuredText 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.