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Diffstat (limited to 'Documentation/dev-tools/kmemleak.rst')
| -rw-r--r-- | Documentation/dev-tools/kmemleak.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kmemleak.rst b/Documentation/dev-tools/kmemleak.rst index 7d784e03f3f9..a8a83bc69ceb 100644 --- a/Documentation/dev-tools/kmemleak.rst +++ b/Documentation/dev-tools/kmemleak.rst @@ -198,6 +198,14 @@ systems, because of pointers temporarily stored in CPU registers or stacks. Kmemleak defines MSECS_MIN_AGE (defaulting to 1000) representing the minimum age of an object to be reported as a memory leak. +The ``min_unref_scans`` module parameter (default 1) requires an object to +be seen unreferenced in that many consecutive scans before it is reported. +Keeping it at 1 preserves the historical behaviour; higher values filter +the transient false positives described above, at the cost of delaying +genuine reports by up to that many scans. It can be set at boot with +``kmemleak.min_unref_scans=<n>`` or at run-time via +``/sys/module/kmemleak/parameters/min_unref_scans``. + Limitations and Drawbacks ------------------------- |