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04dfef5b41
In fault mode, page table binding is deferred until fault handler. Thus vma->tile_present will be unset unless the VMA is accessed by GPU. During a later unbind, the logic doesn't account for the fact that local fence variable will be NULL in this case, leading to pass NULL into dma_fence_add_callback() and causing few WARN_ONs to print to console. The fix is already present in the code, just hoist the fence variable computation to be done earlier. Resolves warnings seen with igt@xe_exec_fault_mode@once-invalid-fault Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.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.