[Crash-utility] [PATCH] Add support for kASLR for offline vmcore files

[Andrew Honig]

>> index 1d915b1..f4334ac 100755
>> --- a/x86_64.c
>> +++ b/x86_64.c
>> @@ -5389,7 +5389,7 @@ search_for_switch_to(ulong start, ulong end)
>>       found = FALSE;
>>       sprintf(buf1, "x/%ldi 0x%lx", max_instructions, start);
>>       if (symbol_exists("__switch_to"))
>> -             sprintf(buf2, "callq  0x%lx", symbol_value("__switch_to"));
>> +             sprintf(buf2, "call   0x%lx", symbol_value("__switch_to"));
>
> I don't know why you see it with a "call" instruction?  On all x86_64 kernels
> I've seen, it looks like this:
>
>   crash> dis __schedule
>   ... [ cut ] ...
>   0xffffffff81659c81 <__schedule+657>:    callq  0xffffffff81013450 <__switch_to>
>   ...
>
> Maybe we can search for both strings?
>

crash> dis context_switch
0xffffffff80278af4 <context_switch+596>:        call
0xffffffff80205600 <__switch_to>

I have no explanation for the difference.  I will submit another
version that searches for both strings.

> Dave
>
>
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