git: 7d1ab866911a - main - pf: Initialize the table entry zone limit at initialization time

From: Mark Johnston <>
Date: Wed, 30 Mar 2022 19:59:38 UTC
The branch main has been updated by markj:


commit 7d1ab866911a2b29e041d64bc83a93638533f957
Author:     Mark Johnston <>
AuthorDate: 2022-03-30 19:41:44 +0000
Commit:     Mark Johnston <>
CommitDate: 2022-03-30 19:41:44 +0000

    pf: Initialize the table entry zone limit at initialization time
    The limit may later be updated by the "set limit" directive in pf.conf.
    UMA does not permit a limit to be set on a zone after any items have
    been allocated from a zone.
    Other UMA zones used by pf do not appear to be susceptible to this
    problem: they either set a limit at zone creation time or never set one
    at all.
    PR:             260406
    Reviewed by:    kp
    MFC after:      3 days
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:
 sys/netpfil/pf/pf_table.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/netpfil/pf/pf_table.c b/sys/netpfil/pf/pf_table.c
index 2352e43cb342..a2afd5c24cff 100644
--- a/sys/netpfil/pf/pf_table.c
+++ b/sys/netpfil/pf/pf_table.c
@@ -210,6 +210,7 @@ pfr_initialize(void)
 	V_pfr_kentry_z = uma_zcreate("pf table entries",
 	    sizeof(struct pfr_kentry), NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,
+	uma_zone_set_max(V_pfr_kentry_z, PFR_KENTRY_HIWAT);
 	V_pf_limits[PF_LIMIT_TABLE_ENTRIES].zone = V_pfr_kentry_z;