leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powerpc/pseries: Disable VPNH feature

Browse Source 
This feature triggers nasty races in the scheduler between the
rebuilding of the topology and the load balancing code, causing
the machine to hang.

Disable it for now until the races are fixed.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt 2011-03-09 13:00:14 +00:00
parent f2f6dad6ca
commit 36e8695ca5
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/mm/numa.c
View File

@ -1516,7 +1516,8 @@ int start_topology_update(void)
{
int rc = 0;
if (firmware_has_feature(FW_FEATURE_VPHN) &&
/* Disabled until races with load balancing are fixed */
if (0 && firmware_has_feature(FW_FEATURE_VPHN) &&
get_lppaca()->shared_proc) {
vphn_enabled = 1;
setup_cpu_associativity_change_counters();