[PATCH kexec-tools 06/32] kdump: print mmap() offset in hex
Russell King
rmk at arm.linux.org.uk
Tue May 3 03:21:34 PDT 2016
When mmap() fails, printing a large decimal number is mostly
meaningless - it's not obvious what it means. Printing a hex number
is more obvious, because we can see whether it's over 32-bit, or not
page aligned.
Signed-off-by: Russell King <rmk at arm.linux.org.uk>
---
kdump/kdump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kdump/kdump.c b/kdump/kdump.c
index 34d2149..f34727f 100644
--- a/kdump/kdump.c
+++ b/kdump/kdump.c
@@ -37,7 +37,7 @@ static void *map_addr(int fd, unsigned long size, off_t offset)
result = mmap(0, len, PROT_READ, MAP_SHARED, fd, offset - map_offset);
if (result == MAP_FAILED) {
- fprintf(stderr, "Cannot mmap " DEV_MEM " offset: %llu size: %lu: %s\n",
+ fprintf(stderr, "Cannot mmap " DEV_MEM " offset: %#llx size: %lu: %s\n",
(unsigned long long)offset, size, strerror(errno));
exit(5);
}
--
1.9.1
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