mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-12-28 12:37:55 -05:00
05de45383bd134fcb2b7d70d35ebb0bb50b5e4aa
Pull tracing fix from Steven Rostedt: "Fix stack trace entry size to stop showing garbage The macro that creates both the structure and the format displayed to user space for the stack trace event was changed a while ago to fix the parsing by user space tooling. But this change also modified the structure used to store the stack trace event. It changed the caller array field from [0] to [8]. Even though the size in the ring buffer is dynamic and can be something other than 8 (user space knows how to handle this), the 8 extra words was not accounted for when reserving the event on the ring buffer, and added 8 more entries, due to the calculation of "sizeof(*entry) + nr_entries * sizeof(long)", as the sizeof(*entry) now contains 8 entries. The size of the caller field needs to be subtracted from the size of the entry to create the correct allocation size" * tag 'trace-v5.12-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Fix stack trace event size
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.
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