diff options
| -rw-r--r-- | kexec/arch/i386/crashdump-x86.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c index df84185d..0dada99a 100644 --- a/kexec/arch/i386/crashdump-x86.c +++ b/kexec/arch/i386/crashdump-x86.c @@ -483,9 +483,18 @@ static int add_memmap(struct memory_range *memmap_p, int *nr_memmap, int i, j, nr_entries = 0, tidx = 0, align = 1024; unsigned long long mstart, mend; - /* Do alignment check if it's RANGE_RAM */ - if ((type == RANGE_RAM) && ((addr%align) || (size%align))) - return -1; + /* Shrink to 1KiB alignment if needed. */ + if (type == RANGE_RAM && ((addr%align) || (size%align))) { + unsigned long long end = addr + size; + + printf("%s: RAM chunk %#llx - %#llx unaligned\n", __func__, addr, end); + addr = _ALIGN_UP(addr, align); + end = _ALIGN_DOWN(end, align); + if (addr >= end) + return -1; + size = end - addr; + printf("%s: RAM chunk shrunk to %#llx - %#llx\n", __func__, addr, end); + } /* Make sure at least one entry in list is free. */ for (i = 0; i < CRASH_MAX_MEMMAP_NR; i++) { |