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da46735229
Move amdgpu_device_health_check into amdgpu_device_gpu_recover to ensure that if the device is present can be checked before reset The reason is: 1.During the dpc event, the device where the dpc event occurs is not present on the bus 2.When both dpc event and ATHUB event occur simultaneously,the dpc thread holds the reset domain lock when detecting error,and the gpu recover thread acquires the hive lock.The device is simultaneously in the states of amdgpu_ras_in_recovery and occurs_dpc,so gpu recover thread will not go to amdgpu_device_health_check.It waits for the reset domain lock held by the dpc thread, but dpc thread has not released the reset domain lock.In the dpc callback slot_reset,to obtain the hive lock, the hive lock is held by the gpu recover thread at this time.So a deadlock occurred Signed-off-by: Ce Sun <cesun102@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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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 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.