提交 b4cf95c6 编写于 作者: J Jeff Dike 提交者: Linus Torvalds

[PATCH] uml: add a debugging message

Add a debugging message in the case that mapping a stub fails.
Signed-off-by: NJeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 7c7a8949
......@@ -419,9 +419,12 @@ void map_stub_pages(int fd, unsigned long code,
.offset = code_offset
} } });
n = os_write_file(fd, &mmop, sizeof(mmop));
if(n != sizeof(mmop))
if(n != sizeof(mmop)){
printk("mmap args - addr = 0x%lx, fd = %d, offset = %llx\n",
code, code_fd, (unsigned long long) code_offset);
panic("map_stub_pages : /proc/mm map for code failed, "
"err = %d\n", -n);
}
if ( stack ) {
__u64 map_offset;
......
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