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a354b8bbdf
commit 80cbee810e4e13cdbd3ae9654e9ecddf17f3e828 upstream. The V3D driver still relies on `drm_sched_increase_karma()` and `drm_sched_resubmit_jobs()` for resubmissions when a timeout occurs. The function `drm_sched_increase_karma()` marks the job as guilty, while `drm_sched_resubmit_jobs()` sets an error (-ECANCELED) in the DMA fence of that guilty job. Because of this, we must check whether the job’s DMA fence has been flagged with an error before executing the job. Otherwise, the same guilty job may be resubmitted indefinitely, causing repeated GPU resets. This patch adds a check for an error on the job's fence to prevent running a guilty job that was previously flagged when the GPU timed out. Note that the CPU and CACHE_CLEAN queues do not require this check, as their jobs are executed synchronously once the DRM scheduler starts them. Cc: stable@vger.kernel.org Fixes: |
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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.