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kmemleak: Enable task stacks scanning by default

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This is to reduce the number of false positives reported.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Catalin Marinas
2009-06-26 17:38:25 +01:00
parent a9d9058aba
commit e0a2a1601b
2 changed files with 5 additions and 5 deletions
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8
Documentation/kmemleak.txt
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@@ -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: /sys/kernel/debug/kmemleak file. The following parameters are supported:
off - disable kmemleak (irreversible) 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 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=off - stop the automatic memory scanning thread
scan=<secs> - set the automatic memory scanning period in seconds (0 scan=<secs> - set the automatic memory scanning period in seconds
to disable it) (default 600, 0 to stop the automatic scanning)
Kmemleak can also be disabled at boot-time by passing "kmemleak=off" on Kmemleak can also be disabled at boot-time by passing "kmemleak=off" on
the kernel command line. the kernel command line.

2
mm/kmemleak.c
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@@ -194,7 +194,7 @@ static unsigned long jiffies_min_age;
/* delay between automatic memory scannings */ /* delay between automatic memory scannings */
static signed long jiffies_scan_wait; static signed long jiffies_scan_wait;
/* enables or disables the task stacks scanning */ /* enables or disables the task stacks scanning */
static int kmemleak_stack_scan; static int kmemleak_stack_scan = 1;
/* mutex protecting the memory scanning */ /* mutex protecting the memory scanning */
static DEFINE_MUTEX(scan_mutex); static DEFINE_MUTEX(scan_mutex);
/* mutex protecting the access to the /sys/kernel/debug/kmemleak file */ /* mutex protecting the access to the /sys/kernel/debug/kmemleak file */