AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[POWERPC] Fix parse_drconf_memory() for 64-bit start addresses

Browse Source 
Some new machines use the "ibm,dynamic-reconfiguration-memory" property
to provide memory layout information, rather than via memory nodes.

There is a bug in the code to parse this property for start addresses
over 4GB; we store the start address in an unsigned int, which means
we throw away the high bits and add apparently duplicate regions.
This results in a BUG() in free_bootmem_core().  This fixes it by
using an unsigned long instead.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman 2007-08-01 11:34:38 +10:00 committed by Paul Mackerras
parent 17aa3a82aa
commit b9c3fdb0f0
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/powerpc/mm/numa.c
View File

@ -307,9 +307,9 @@ static void __init parse_drconf_memory(struct device_node *memory)
const unsigned int *lm, *dm, *aa;
unsigned int ls, ld, la;
unsigned int n, aam, aalen;
unsigned long lmb_size, size;
unsigned long lmb_size, size, start;
int nid, default_nid = 0;
unsigned int start, ai, flags;
unsigned int ai, flags;
lm = of_get_property(memory, "ibm,lmb-size", &ls);
dm = of_get_property(memory, "ibm,dynamic-memory", &ld);