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| author | kib <kib@FreeBSD.org> | 2013-05-21 11:04:00 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-05-21 11:04:00 +0000 |
| commit | f8c66c9055c669f366e04b67bc673f48e8793869 (patch) | |
| tree | 5a4e3ed15f69ece443bf8966ed961622a3de2a57 /sys/vm | |
| parent | dff9cf75d8e75686f34af682ad84c58432093f0d (diff) | |
| download | FreeBSD-src-f8c66c9055c669f366e04b67bc673f48e8793869.zip FreeBSD-src-f8c66c9055c669f366e04b67bc673f48e8793869.tar.gz | |
Add ddb command 'show pginfo' which provides useful information about
a vm page, denoted either by an address of the struct vm_page, or, if
the '/p' modifier is specified, by a physical address of the
corresponding frame.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Diffstat (limited to 'sys/vm')
| -rw-r--r-- | sys/vm/vm_page.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index f95013f..637fb0c 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -2884,4 +2884,27 @@ DB_SHOW_COMMAND(pageq, vm_page_print_pageq_info) *vm_pagequeues[PQ_ACTIVE].pq_cnt, *vm_pagequeues[PQ_INACTIVE].pq_cnt); } + +DB_SHOW_COMMAND(pginfo, vm_page_print_pginfo) +{ + vm_page_t m; + boolean_t phys; + + if (!have_addr) { + db_printf("show pginfo addr\n"); + return; + } + + phys = strchr(modif, 'p') != NULL; + if (phys) + m = PHYS_TO_VM_PAGE(addr); + else + m = (vm_page_t)addr; + db_printf( + "page %p obj %p pidx 0x%jx phys 0x%jx q %d hold %d wire %d\n" + " af 0x%x of 0x%x f 0x%x act %d busy %d valid 0x%x dirty 0x%x\n", + m, m->object, (uintmax_t)m->pindex, (uintmax_t)m->phys_addr, + m->queue, m->hold_count, m->wire_count, m->aflags, m->oflags, + m->flags, m->act_count, m->busy, m->valid, m->dirty); +} #endif /* DDB */ |
