help
Say Y here to enable the kernel to detect "hung tasks",
which are bugs that cause the task to be stuck in
- uninterruptible "D" state indefinitiley.
+ uninterruptible "D" state indefinitely.
When a hung task is detected, the kernel will print the
current stack trace (which you should report), but the
Enable this option if you want to use the LatencyTOP tool
to find out which userspace is blocking on what kernel operations.
-config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
- bool
-
-config DEBUG_STRICT_USER_COPY_CHECKS
- bool "Strict user copy size checks"
- depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
- depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
- help
- Enabling this option turns a certain set of sanity checks for user
- copy operations into compile time failures.
-
- The copy_from_user() etc checks are there to help test if there
- are sufficient security checks on the length argument of
- the copy operation, by having gcc prove that the argument is
- within bounds.
-
- If unsure, say N.
-
source kernel/trace/Kconfig
menu "Runtime Testing"