http://defect.opensolaris.org/bz/show_bug.cgi?id=6569
Summary: assertion failure in pg_cmt_cpu_inactive()
Classification: Development
Product: power-mgmt
Version: unspecified
Platform: Other
OS/Version: Solaris
Status: ACCEPTED
Severity: major
Priority: P2
Component: PAD
AssignedTo: eric.saxe at sun.com
ReportedBy: eric.saxe at sun.com
CC: tesla-dev at opensolaris.org
Pat hit another assertion failure, this time in pg_cmt_cpu_inactive():
panic[cpu1]/thread=ffffff02fb58a540: assertion failed: err == 0, file:
../../common/disp/cmt.c, line: 931
ffffff000f6f9d00 genunix:assfail+7e ()
ffffff000f6f9d60 unix:pg_cmt_cpu_inactive+1e9 ()
ffffff000f6f9d90 unix:pg_cpu_inactive+64 ()
ffffff000f6f9dc0 unix:cpu_remove_active+4b ()
ffffff000f6f9e30 unix:cpu_offline+205 ()
ffffff000f6f9e80 genunix:p_online_internal+fc ()
ffffff000f6f9eb0 genunix:p_online+1d ()
ffffff000f6f9f00 unix:brand_sys_sysenter+2d7 ()
This is a regression brought on by a typo in the fix for 6537:
/*
* If the parent is at the top of the hierarchy, replace it's entry
* in the root lgroup's group of top level PGs.
*/
if (parent->cmt_parent == NULL) {
if (group_remove(&cmt_root->cl_pgs, pg, GRP_NORESIZE) != -1) {
r = group_add(&cmt_root->cl_pgs, pg, GRP_NORESIZE);
ASSERT(r != -1);
}
}
should be:
/*
* If the parent is at the top of the hierarchy, replace it's entry
* in the root lgroup's group of top level PGs.
*/
if (parent->cmt_parent == NULL) {
if (group_remove(&cmt_root->cl_pgs, parent, GRP_NORESIZE)
!= -1) {
r = group_add(&cmt_root->cl_pgs, pg, GRP_NORESIZE);
ASSERT(r != -1);
}
}
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