bool
select SOFTLOCKUP_DETECTOR
+#
+# Enables a timestamp based low pass filter to compensate for perf based
+# hard lockup detection which runs too fast due to turbo modes.
+#
+config HARDLOCKUP_CHECK_TIMESTAMP
+ bool
+
#
# arch/ can define HAVE_HARDLOCKUP_DETECTOR_ARCH to provide their own hard
# lockup detector rather than the perf based detector.
It is also used by various kernel debugging features that require
stack trace generation.
+config WARN_ALL_UNSEEDED_RANDOM
+ bool "Warn for all uses of unseeded randomness"
+ default n
+ help
+ Some parts of the kernel contain bugs relating to their use of
+ cryptographically secure random numbers before it's actually possible
+ to generate those numbers securely. This setting ensures that these
+ flaws don't go unnoticed, by enabling a message, should this ever
+ occur. This will allow people with obscure setups to know when things
+ are going wrong, so that they might contact developers about fixing
+ it.
+
+ Unfortunately, on some models of some architectures getting
+ a fully seeded CRNG is extremely difficult, and so this can
+ result in dmesg getting spammed for a surprisingly long
+ time. This is really bad from a security perspective, and
+ so architecture maintainers really need to do what they can
+ to get the CRNG seeded sooner after the system is booted.
+ However, since users can not do anything actionble to
+ address this, by default the kernel will issue only a single
+ warning for the first use of unseeded randomness.
+
+ Say Y here if you want to receive warnings for all uses of
+ unseeded randomness. This will be of use primarily for
+ those developers interersted in improving the security of
+ Linux kernels running on their architecture (or
+ subarchitecture).
+
config DEBUG_KOBJECT
bool "kobject debugging"
depends on DEBUG_KERNEL
If unsure, say N.
+config TEST_KMOD
+ tristate "kmod stress tester"
+ default n
+ depends on m
+ depends on BLOCK && (64BIT || LBDAF) # for XFS, BTRFS
+ depends on NETDEVICES && NET_CORE && INET # for TUN
+ select TEST_LKM
+ select XFS_FS
+ select TUN
+ select BTRFS_FS
+ help
+ Test the kernel's module loading mechanism: kmod. kmod implements
+ support to load modules using the Linux kernel's usermode helper.
+ This test provides a series of tests against kmod.
+
+ Although technically you can either build test_kmod as a module or
+ into the kernel we disallow building it into the kernel since
+ it stress tests request_module() and this will very likely cause
+ some issues by taking over precious threads available from other
+ module load requests, ultimately this could be fatal.
+
+ To run tests run:
+
+ tools/testing/selftests/kmod/kmod.sh --help
+
+ If unsure, say N.
+
source "samples/Kconfig"
source "lib/Kconfig.kgdb"