Re: [PATCH] mm: kmemleak: default min_unref_scans to 2 for verbose auto-scan

[Catalin Marinas <catalin.marinas@arm.com>]

On Mon, Aug 03, 2026 at 02:41:20PM +0100, Catalin Marinas wrote:
> On Thu, Jul 30, 2026 at 07:31:21AM -0700, Breno Leitao wrote:
> > min_unref_scans defers reporting an object as leaked until it has stayed
> > unreferenced for that many consecutive scans, filtering out objects that
> > are only transiently unreferenced during a scan.
> > 
> > It defaults to 1, which reports on the first unreferenced scan.
> > 
> > When CONFIG_DEBUG_KMEMLEAK_AUTO_SCAN and CONFIG_DEBUG_KMEMLEAK_VERBOSE are
> > both enabled, the scan thread runs periodically and the user has opted into
> > detailed leak reporting, so a second confirming scan happens on its own.
> > 
> > Default min_unref_scans to 2 in that configuration to suppress transient
> > false positives.
> > 
> > Keep the default at 1 otherwise, where a manually triggered scan is
> > expected to report immediately. The value stays writable through the module
> > parameter.
> > 
> > Signed-off-by: Breno Leitao <leitao@debian.org>
> 
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>

Ah, I noticed there's a v2. Ignore this one.

-- 
Catalin