diff options
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r-- | lib/Kconfig.debug | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 77e0d8b1b7c5..43173c4e0ade 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug | |||
@@ -340,8 +340,6 @@ config DEBUG_KMEMLEAK | |||
340 | bool "Kernel memory leak detector" | 340 | bool "Kernel memory leak detector" |
341 | depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM) && \ | 341 | depends on DEBUG_KERNEL && EXPERIMENTAL && (X86 || ARM) && \ |
342 | !MEMORY_HOTPLUG | 342 | !MEMORY_HOTPLUG |
343 | select DEBUG_SLAB if SLAB | ||
344 | select SLUB_DEBUG if SLUB | ||
345 | select DEBUG_FS if SYSFS | 343 | select DEBUG_FS if SYSFS |
346 | select STACKTRACE if STACKTRACE_SUPPORT | 344 | select STACKTRACE if STACKTRACE_SUPPORT |
347 | select KALLSYMS | 345 | select KALLSYMS |
@@ -355,9 +353,24 @@ config DEBUG_KMEMLEAK | |||
355 | allocations. See Documentation/kmemleak.txt for more | 353 | allocations. See Documentation/kmemleak.txt for more |
356 | details. | 354 | details. |
357 | 355 | ||
356 | Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances | ||
357 | of finding leaks due to the slab objects poisoning. | ||
358 | |||
358 | In order to access the kmemleak file, debugfs needs to be | 359 | In order to access the kmemleak file, debugfs needs to be |
359 | mounted (usually at /sys/kernel/debug). | 360 | mounted (usually at /sys/kernel/debug). |
360 | 361 | ||
362 | config DEBUG_KMEMLEAK_EARLY_LOG_SIZE | ||
363 | int "Maximum kmemleak early log entries" | ||
364 | depends on DEBUG_KMEMLEAK | ||
365 | range 200 2000 | ||
366 | default 400 | ||
367 | help | ||
368 | Kmemleak must track all the memory allocations to avoid | ||
369 | reporting false positives. Since memory may be allocated or | ||
370 | freed before kmemleak is initialised, an early log buffer is | ||
371 | used to store these actions. If kmemleak reports "early log | ||
372 | buffer exceeded", please increase this value. | ||
373 | |||
361 | config DEBUG_KMEMLEAK_TEST | 374 | config DEBUG_KMEMLEAK_TEST |
362 | tristate "Simple test for the kernel memory leak detector" | 375 | tristate "Simple test for the kernel memory leak detector" |
363 | depends on DEBUG_KMEMLEAK | 376 | depends on DEBUG_KMEMLEAK |