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Initial tests with the CXL CPER implementation identified that error reports were being duplicated in the log and the trace event [1]. Then it was discovered that the notification handler took sleeping locks while the GHES event handling runs in spin_lock_irqsave() context [2] While the duplicate reporting was fixed in v6.8-rc4, the fix for the sleeping-lock-vs-atomic collision would enjoy more time to settle and gain some test cycles. Given how late it is in the development cycle, remove the CXL hookup for now and try again during the next merge window. Note that end result is that v6.8 does not emit CXL CPER payloads to the kernel log, but this is in line with the CXL trend to move error reporting to trace events instead of the kernel log. Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: http://lore.kernel.org/r/20240108165855.00002f5a@Huawei.com [1] Closes: http://lore.kernel.org/r/b963c490-2c13-4b79-bbe7-34c6568423c7@moroto.mountain [2] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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.