package/boot/kexec-tools/patches/120-fail-to-get-symbol-debug.patch

   1 commit 263e45ccf27b21e9862cc538ed28978533d04e4b
   2 Author: Baoquan He <bhe@redhat.com>
   3 Date:   Fri Mar 3 11:52:15 2017 +0800
   4
   5     Only print debug message when failed to serach for kernel symbol from /proc/kallsyms
   6
   7     Kernel symbol page_offset_base could be unavailable when mm KASLR code is
   8     not compiled in kernel. It's inappropriate to print out error message
   9     when failed to search for page_offset_base from /proc/kallsyms. Seems now
  10     there is not a way to find out if mm KASLR is compiled in or not. An
  11     alternative approach is only printing out debug message in get_kernel_sym
  12     if failed to search a expected kernel symbol.
  13
  14     Do it in this patch, a simple fix.
  15
  16     Signed-off-by: Baoquan He <bhe@redhat.com>
  17     Reviewed-by: Pratyush Anand <panand@redhat.com>
  18     Acked-by: Dave Young <dyoung@redhat.com>
  19     Signed-off-by: Simon Horman <horms@verge.net.au>
  20
  21 diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c
  22 index 88aeee3..c4cf201 100644
  23 --- a/kexec/arch/i386/crashdump-x86.c
  24 +++ b/kexec/arch/i386/crashdump-x86.c
  25 @@ -127,7 +127,7 @@ static unsigned long long get_kernel_sym(const char *symbol)
  26                 }
  27         }
  28
  29 -       fprintf(stderr, "Cannot get kernel %s symbol address\n", symbol);
  30 +       dbgprintf("Cannot get kernel %s symbol address\n", symbol);
  31         return 0;
  32  }
  33