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Commit e0a2a160 authored by Catalin Marinas's avatar Catalin Marinas
Browse files

kmemleak: Enable task stacks scanning by default 



This is to reduce the number of false positives reported.

Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent a9d9058a

Documentation/kmemleak.txt

+4 −4
Original line number Diff line number Diff line
@@ -31,12 +31,12 @@ Memory scanning parameters can be modified at run-time by writing to the 
/sys/kernel/debug/kmemleak file. The following parameters are supported:



  off		- disable kmemleak (irreversible)

  stack=on	- enable the task stacks scanning

  stack=on	- enable the task stacks scanning (default)

  stack=off	- disable the tasks stacks scanning

  scan=on	- start the automatic memory scanning thread

  scan=on	- start the automatic memory scanning thread (default)

  scan=off	- stop the automatic memory scanning thread

  scan=<secs>	- set the automatic memory scanning period in seconds (0

		  to disable it)

  scan=<secs>	- set the automatic memory scanning period in seconds

		  (default 600, 0 to stop the automatic scanning)



Kmemleak can also be disabled at boot-time by passing "kmemleak=off" on

the kernel command line.

mm/kmemleak.c

+1 −1
Original line number Diff line number Diff line
@@ -194,7 +194,7 @@ static unsigned long jiffies_min_age; 
/* delay between automatic memory scannings */

static signed long jiffies_scan_wait;

/* enables or disables the task stacks scanning */

static int kmemleak_stack_scan;

static int kmemleak_stack_scan = 1;

/* mutex protecting the memory scanning */

static DEFINE_MUTEX(scan_mutex);

/* mutex protecting the access to the /sys/kernel/debug/kmemleak file */