diff options
| -rw-r--r-- | arch/ia64/kernel/setup.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 66377baea6a5..be398451d45c 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -256,7 +256,7 @@ reserve_memory (void) #ifdef CONFIG_KEXEC /* crashkernel=size@offset specifies the size to reserve for a crash - * kernel.(offset is ingored for keep compatibility with other archs) + * kernel. If offset is 0, then it is determined automatically. * By reserving this memory we guarantee that linux never set's it * up as a DMA target.Useful for holding code to do something * appropriate after a kernel panic. @@ -266,10 +266,16 @@ reserve_memory (void) unsigned long base, size; if (from) { size = memparse(from + 12, &from); + if (*from == '@') + base = memparse(from+1, &from); + else + base = 0; if (size) { - sort_regions(rsvd_region, n); - base = kdump_find_rsvd_region(size, - rsvd_region, n); + if (!base) { + sort_regions(rsvd_region, n); + base = kdump_find_rsvd_region(size, + rsvd_region, n); + } if (base != ~0UL) { rsvd_region[n].start = (unsigned long)__va(base); |