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9f201aba56
During hard-reset, contexts are closed as part of the tear-down process. After a context is closed, the driver cleans up the page tables of that context in the device's DRAM. This action is both dangerous and unnecessary. It is unnecessary, because the device is going through a hard-reset, which means the device's DRAM contents are no longer valid and the device's MMU is being reset. It is dangerous, because if the hard-reset came as a result of a PCI freeze, this action may cause the entire host machine to hang. Therefore, prevent all device PTE updates when a hard-reset operation is pending. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> |
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| kernel | ||
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| README | ||
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.