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-rw-r--r--arch/i386/Kconfig.debug13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/i386/Kconfig.debug b/arch/i386/Kconfig.debug
index bf32ecc9ad0..6e97df6979e 100644
--- a/arch/i386/Kconfig.debug
+++ b/arch/i386/Kconfig.debug
@@ -31,12 +31,21 @@ config DEBUG_STACK_USAGE
This option will slow down process creation somewhat.
+config STACK_BACKTRACE_COLS
+ int "Stack backtraces per line" if DEBUG_KERNEL
+ range 1 3
+ default 2
+ help
+ Selects how many stack backtrace entries per line to display.
+
+ This can save screen space when displaying traces.
+
comment "Page alloc debug is incompatible with Software Suspend on i386"
depends on DEBUG_KERNEL && SOFTWARE_SUSPEND
config DEBUG_PAGEALLOC
- bool "Page alloc debugging"
- depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
+ bool "Debug page memory allocations"
+ depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND && !HUGETLBFS
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types