Add a debugging message in the case that mapping a stub fails.

Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
--
 arch/um/os-Linux/skas/process.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Index: test/arch/um/os-Linux/skas/process.c
===================================================================
--- test.orig/arch/um/os-Linux/skas/process.c   2007-03-05 15:08:18.000000000 
-0500
+++ test/arch/um/os-Linux/skas/process.c        2007-03-05 16:14:56.000000000 
-0500
@@ -419,9 +419,12 @@ void map_stub_pages(int fd, unsigned lon
                                          .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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