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uvm(9): Print min/max address and first_free entry in ddb `show map'. 

May help to diagnose PR kern/51254.
This commit is contained in:
riastradh 2022-06-04 23:09:57 +00:00
parent d86c108395
commit 13b1639b38
1 changed files with 7 additions and 4 deletions
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11
sys/uvm/uvm_map.c
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@ -1,4 +1,4 @@
/* $NetBSD: uvm_map.c,v 1.396 2022/06/04 20:54:53 riastradh Exp $ */
/* $NetBSD: uvm_map.c,v 1.397 2022/06/04 23:09:57 riastradh Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uvm_map.c,v 1.396 2022/06/04 20:54:53 riastradh Exp $");
__KERNEL_RCSID(0, "$NetBSD: uvm_map.c,v 1.397 2022/06/04 23:09:57 riastradh Exp $");
#include "opt_ddb.h"
#include "opt_pax.h"
@ -5116,6 +5116,8 @@ uvm_map_printit(struct vm_map *map, bool full,
pmap_resident_count(map->pmap), pmap_wired_count(map->pmap));
if (!full)
return;
(*pr)("\tmin=%"PRIxVADDR", max=%"PRIxVADDR"\n",
vm_map_min(map), vm_map_max(map));
for (entry = map->header.next; entry != &map->header;
entry = entry->next) {
(*pr)(" - %p: %#lx->%#lx: obj=%p/%#llx, amap=%p/%d\n",
@ -5124,12 +5126,13 @@ uvm_map_printit(struct vm_map *map, bool full,
entry->aref.ar_pageoff);
(*pr)(
"\tsubmap=%c, cow=%c, nc=%c, prot(max)=%d/%d, inh=%d, "
"wc=%d, adv=%d\n",
"wc=%d, adv=%d%s\n",
(entry->etype & UVM_ET_SUBMAP) ? 'T' : 'F',
(entry->etype & UVM_ET_COPYONWRITE) ? 'T' : 'F',
(entry->etype & UVM_ET_NEEDSCOPY) ? 'T' : 'F',
entry->protection, entry->max_protection,
entry->inheritance, entry->wired_count, entry->advice);
entry->inheritance, entry->wired_count, entry->advice,
entry == map->first_free ? " (first_free)" : "");
}
}