Author: bz
Date: Wed Aug 12 12:06:16 2009
New Revision: 196132
URL: http://svn.freebsd.org/changeset/base/196132
Log:
Add ddb show dpcpu_off command to ease dpcpu memory debugging.
While show pcpu prints pc_dynamic this also prints the original
memory address as well as the maths.
Once dpcpu goes NUMA this is considered to help debugging as well.
Reviewed by: rwatson
Approved by: re
Modified:
head/sys/kern/subr_pcpu.c
Modified: head/sys/kern/subr_pcpu.c
==============================================================================
--- head/sys/kern/subr_pcpu.c Wed Aug 12 12:05:07 2009 (r196131)
+++ head/sys/kern/subr_pcpu.c Wed Aug 12 12:06:16 2009 (r196132)
@@ -313,6 +313,18 @@ sysctl_dpcpu_int(SYSCTL_HANDLER_ARGS)
}
#ifdef DDB
+DB_SHOW_COMMAND(dpcpu_off, db_show_dpcpu_off)
+{
+ int id;
+
+ for (id = 0; id <= mp_maxid; id++) {
+ if (CPU_ABSENT(id))
+ continue;
+ db_printf("dpcpu_off[%2d] = 0x%jx (+ DPCPU_START = %p)\n",
+ id, (uintmax_t)dpcpu_off[id],
+ (void *)(uintptr_t)(dpcpu_off[id] + DPCPU_START));
+ }
+}
static void
show_pcpu(struct pcpu *pc)
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
