--- a/sys/kern/kern_sysref.c	2026-06-29 12:51:19.000000000 +0000
+++ b/sys/kern/kern_sysref.c	2026-10-26 00:25:42.789042927 +0000
@@ -97,33 +97,10 @@
 	return(0);
 }
 
-/*
- * Manual initialization of a resource structure's sysref, only used during
- * booting to set up certain statically declared resources which cannot
- * be deallocated.
+/* sysref_init() and allocsysid() removed: zero in-tree callers.
+ * sysref_init produced objects without objcache backing whose final
+ * put would objcache_put() non-cache memory on production builds.
  */
-void
-sysref_init(struct sysref *sr, struct sysref_class *srclass)
-{
-	struct srpercpu *sa;
-	globaldata_t gd;
-
-	gd = mycpu;
-	crit_enter_gd(gd);
-	gd->gd_sysid_alloc += ncpus_fit; /* next unique sysid */
-	sr->sysid = gd->gd_sysid_alloc;
-	KKASSERT(((int)sr->sysid & ncpus_fit_mask) == gd->gd_cpuid);
-	sr->refcnt = -0x40000000;
-	sr->flags = 0;
-	sr->srclass = srclass;
-
-	sa = &sysref_array[gd->gd_cpuid];
-	spin_lock(&sa->spin);
-	sysref_rb_tree_RB_INSERT(&sa->rbtree, sr);
-	spin_unlock(&sa->spin);
-	crit_exit_gd(gd);
-}
-
 /*
  * Allocate a resource structure of the specified class, initialize a
  * sysid and add the resource to the RB tree.  The caller must complete
@@ -359,16 +336,4 @@
 	}
 }
 
-sysid_t
-allocsysid(void)
-{
-	globaldata_t gd = mycpu;
-	sysid_t sysid;
-
-	crit_enter_gd(gd);
-	gd->gd_sysid_alloc += ncpus_fit;
-	sysid = gd->gd_sysid_alloc;
-	crit_exit_gd(gd);
-	return(sysid);
-}
-
+/* allocsysid() removed: zero in-tree callers.  */
--- a/sys/sys/sysref2.h	2026-06-29 12:51:19.000000000 +0000
+++ b/sys/sys/sysref2.h	2026-10-26 00:25:42.789042927 +0000
@@ -119,7 +119,7 @@
 
 #ifdef _KERNEL
 
-void sysref_init(struct sysref *sr, struct sysref_class *);
+/* sysref_init() removed: unused and unsafe for non-objcache objects. */
 void *sysref_alloc(struct sysref_class *class);
 void sysref_activate(struct sysref *);
 
--- a/sys/sys/sysref.h	2026-06-29 12:51:19.000000000 +0000
+++ b/sys/sys/sysref.h	2026-10-26 00:25:42.789042927 +0000
@@ -139,7 +139,7 @@
 
 #ifdef _KERNEL
 
-sysid_t allocsysid(void);
+/* allocsysid() removed: unused. */
 
 #endif