From: "Massimo S." <ecs-isp@2rosenthals.com>
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To: "Massimo S." <ecs-isp@2rosenthals.com>
Reply-To: ml@ecomstation.it
Subject: IP stack "free clusters"
Organization: Massimo S.
Message-ID: <86a9f8cb-eead-92d2-3524-2dff4c7b3dee@ecomstation.it>
Date: Wed, 30 Sep 2026 18:35:22 +0200
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Hi all,

mbufs obtained from page pool            = 60160
free mbufs                               = 9946
data mbufs                               = 38
header mbufs                             = 58
socket structure mbufs                   = 16446
socket name mbufs                        = 0
socket option mbufs                      = 0
protocol control block mbufs             = 33018
routing table mbufs                      = 638
fragment reassembly mbufs                = 0
clusters obtained from page pool         = 3775
free clusters                            = 10
times failed to find space               = 0
times waited for space                   = 0

There are sufficient mbufs free, but the value "free clusters" say only 10.
Is this a situation where the stack IP is in trouble or not?

Any explanation?


massimo