archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-26 06:14:49 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8016155: SIGBUS when running Kitchensink with ParallelScavenge and ParallelOld

Browse source 
When using NUMA and large pages we need to ease the requirement on which node the memory should be allocated on. To avoid the SIGBUS we now use the memory policy MPOL_PREFERRED, which prefers a certain node, instead of MPOL_BIND, which requires a certain node.

Reviewed-by: jmasa, pliden
This commit is contained in:
Stefan Johansson 2013-08-22 10:50:41 +02:00 • committed by Mikael Gerdin
parent a984bd23ad
commit 80fea6f305
2 changed files with 23 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

15
hotspot/src/os/linux/vm/os_linux.cpp
View file

@ -2796,7 +2796,19 @@ void os::numa_make_global(char *addr, size_t bytes) {
Linux::numa_interleave_memory(addr, bytes);
}
// Define for numa_set_bind_policy(int). Setting the argument to 0 will set the
// bind policy to MPOL_PREFERRED for the current thread.
#define USE_MPOL_PREFERRED 0
void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) {
// To make NUMA and large pages more robust when both enabled, we need to ease
// the requirements on where the memory should be allocated. MPOL_BIND is the
// default policy and it will force memory to be allocated on the specified
// node. Changing this to MPOL_PREFERRED will prefer to allocate the memory on
// the specified node, but will not force it. Using this policy will prevent
// getting SIGBUS when trying to allocate large pages on NUMA nodes with no
// free large pages.
Linux::numa_set_bind_policy(USE_MPOL_PREFERRED);
Linux::numa_tonode_memory(addr, bytes, lgrp_hint);
}
@ -2898,6 +2910,8 @@ bool os::Linux::libnuma_init() {
libnuma_dlsym(handle, "numa_tonode_memory")));
set_numa_interleave_memory(CAST_TO_FN_PTR(numa_interleave_memory_func_t,
libnuma_dlsym(handle, "numa_interleave_memory")));
set_numa_set_bind_policy(CAST_TO_FN_PTR(numa_set_bind_policy_func_t,
libnuma_dlsym(handle, "numa_set_bind_policy")));
if (numa_available() != -1) {
@ -2964,6 +2978,7 @@ os::Linux::numa_max_node_func_t os::Linux::_numa_max_node;
os::Linux::numa_available_func_t os::Linux::_numa_available;
os::Linux::numa_tonode_memory_func_t os::Linux::_numa_tonode_memory;
os::Linux::numa_interleave_memory_func_t os::Linux::_numa_interleave_memory;
os::Linux::numa_set_bind_policy_func_t os::Linux::_numa_set_bind_policy;
unsigned long* os::Linux::_numa_all_nodes;
bool os::pd_uncommit_memory(char* addr, size_t size) {