8532d381a9
Upstream the BUF_TRACKING and FULL_BUF_TRACKING buffer debugging code. This can be handy in tracking down what code touched hung bios and bufs last. The full history is especially useful, but adds enough bloat that it shouldn't be enabled in release builds. Function names (or arbitrary string constants) are tracked in a fixed-size ring in bufs. Bios gain a pointer to the upper buf for tracking. SCSI CCBs gain a pointer to the upper bio for tracking. Reviewed by: markj Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D8366
41 lines
1.4 KiB
Plaintext
41 lines
1.4 KiB
Plaintext
#
|
|
# GENERIC-NODEBUG -- WITNESS and INVARIANTS free kernel configuration file
|
|
# for FreeBSD/amd64
|
|
#
|
|
# This configuration file removes several debugging options, including
|
|
# WITNESS and INVARIANTS checking, which are known to have significant
|
|
# performance impact on running systems. When benchmarking new features
|
|
# this kernel should be used instead of the standard GENERIC.
|
|
# This kernel configuration should never appear outside of the HEAD
|
|
# of the FreeBSD tree.
|
|
#
|
|
# For more information on this file, please read the config(5) manual page,
|
|
# and/or the handbook section on Kernel Configuration Files:
|
|
#
|
|
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
|
|
#
|
|
# The handbook is also available locally in /usr/share/doc/handbook
|
|
# if you've installed the doc distribution, otherwise always see the
|
|
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
|
|
# latest information.
|
|
#
|
|
# An exhaustive list of options and more detailed explanations of the
|
|
# device lines is also present in the ../../conf/NOTES and NOTES files.
|
|
# If you are in doubt as to the purpose or necessity of a line, check first
|
|
# in NOTES.
|
|
#
|
|
# $FreeBSD$
|
|
|
|
include GENERIC
|
|
|
|
ident GENERIC-NODEBUG
|
|
|
|
nooptions INVARIANTS
|
|
nooptions INVARIANT_SUPPORT
|
|
nooptions WITNESS
|
|
nooptions WITNESS_SKIPSPIN
|
|
nooptions BUF_TRACKING
|
|
nooptions DEADLKRES
|
|
nooptions FULL_BUF_TRACKING
|
|
|