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270b6541e6
The comment about coredumps not reaching do_group_exit and the
corresponding BUG_ON are bogus.
What happens and has happened for years is that get_signal calls
do_coredump (which sets SIGNAL_GROUP_EXIT and group_exit_code) and
then do_group_exit passing the signal number. Then do_group_exit
ignores the exit_code it is passed and uses signal->group_exit_code
from the coredump.
The comment and BUG_ON were correct when they were added during the
2.5 development cycle, but became obsolete and incorrect when
get_signal was changed to fall through to do_group_exit after
do_coredump in 2.6.10-rc2.
So remove the stale comment and BUG_ON
Fixes: 63bd6144f191 ("[PATCH] Invalid BUG_ONs in signal.c")
History-Tree: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git
Link: https://lkml.kernel.org/r/20220103213312.9144-2-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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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.