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| author |   Andi Kleen <ak@suse.de> | 2005-09-12 18:49:24 +0200 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-12 10:50:56 -0700 |
| commit | 05d1fa4bf6a1528e4d4e39fa537f11e6cfca4720 (patch) | |
| tree | 198f9a3f51306730c5f5cd713c3c8576e8c64161 /arch/x86_64/mm | |
| parent | [PATCH] x86-64: Prevent gcc 4 from optimizing away vsyscalls (diff) | |
| download | linux-dev-05d1fa4bf6a1528e4d4e39fa537f11e6cfca4720.tar.xz linux-dev-05d1fa4bf6a1528e4d4e39fa537f11e6cfca4720.zip | |
[PATCH] x86-64: Improve error handling for overlapping PXMs in SRAT.
- Report PXMs instead of nodes
- Report the correct PXM, not always the one of node 1.
- Only warn for the case of a PXM overlapping by itself
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/mm')
| -rw-r--r-- | arch/x86_64/mm/srat.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index db6b073a149f..36bc7be9afb9 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -25,6 +25,8 @@ static nodemask_t nodes_found __initdata; static struct node nodes[MAX_NUMNODES] __initdata; static __u8 pxm2node[256] = { [0 ... 255] = 0xff }; +static int node_to_pxm(int n); + int pxm_to_node(int pxm) { if ((unsigned)pxm >= 256) @@ -53,9 +55,9 @@ static __init int conflicting_nodes(unsigned long start, unsigned long end) if (nd->start == nd->end) continue; if (nd->end > start && nd->start < end) - return 1; + return i; if (nd->end == end && nd->start == start) - return 1; + return i; } return -1; } @@ -139,10 +141,15 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma) printk(KERN_INFO "SRAT: hot plug zone found %lx - %lx \n", start, end); i = conflicting_nodes(start, end); - if (i >= 0) { + if (i == node) { + printk(KERN_WARNING + "SRAT: Warning: PXM %d (%lx-%lx) overlaps with itself (%Lx-%Lx)\n", + pxm, start, end, nodes[i].start, nodes[i].end); + } else if (i >= 0) { printk(KERN_ERR - "SRAT: pxm %d overlap %lx-%lx with node %d(%Lx-%Lx)\n", - pxm, start, end, i, nodes[i].start, nodes[i].end); + "SRAT: PXM %d (%lx-%lx) overlaps with PXM %d (%Lx-%Lx)\n", + pxm, start, end, node_to_pxm(i), + nodes[i].start, nodes[i].end); bad_srat(); return; } @@ -197,7 +204,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end) return 0; } -int node_to_pxm(int n) +static int node_to_pxm(int n) { int i; if (pxm2node[n] == n) |