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changeset 6685:1d2a26f76788

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6696497 panic in gcpu_ntv_mca_poll_online with chip ids greater than 15
author stephh
date Thu, 22 May 2008 01:39:48 -0700
parents 743df5702ca3
children 3c9396c20a27
files usr/src/uts/i86pc/os/cmi_hw.c
diffstat 1 files changed, 7 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/usr/src/uts/i86pc/os/cmi_hw.c	Wed May 21 21:55:43 2008 -0700
+++ b/usr/src/uts/i86pc/os/cmi_hw.c	Thu May 22 01:39:48 2008 -0700
@@ -919,7 +919,13 @@
 cmi_hdl_lookup(enum cmi_hdl_class class, uint_t chipid, uint_t coreid,
     uint_t strandid)
 {
-	int idx = CMI_HDL_ARR_IDX(chipid, coreid, strandid);
+	int idx;
+
+	if (chipid > CMI_MAX_CHIPS - 1 || coreid > CMI_MAX_CORES_PER_CHIP - 1 ||
+	    strandid > CMI_MAX_STRANDS_PER_CORE - 1)
+		return (NULL);
+
+	idx = CMI_HDL_ARR_IDX(chipid, coreid, strandid);
 
 	if (!cmi_hdl_canref(idx))
 		return (NULL);