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Null return address in backtrace
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Null return address in backtrace

  • Subject: Null return address in backtrace
  • From: Andrew Keller <email@hidden>
  • Date: Wed, 06 Apr 2016 17:01:07 -0400
Hi guys,

I’m attempting to track down a kernel panic on a friend’s computer.  The panic log appears to implicate something regarding graphics, and does not mention any 3rd party software.

One thing did stand out, though — a null return address in the backtrace:

Backtrace (CPU 0), Frame : Return Address
0xffffff810cd6b820 : 0xffffff8000d2ad21 
0xffffff810cd6b8a0 : 0xffffff8000e16df2 
0xffffff810cd6ba60 : 0xffffff8000e33ca3 
0xffffff810cd6ba80 : 0x0 
0xffffff810cd6bbc0 : 0xffffff7f82d90a68 
0xffffff810cd6bc00 : 0xffffff7f82d9fb95 
0xffffff810cd6bc30 : 0xffffff7f82d91479 
0xffffff810cd6bc50 : 0xffffff7f82df66a8 
0xffffff810cd6bc70 : 0xffffff7f82d912dc 
0xffffff810cd6bca0 : 0xffffff7f82d9f6a1 
0xffffff810cd6bd00 : 0xffffff80012b65d1 
0xffffff810cd6bd50 : 0xffffff80012fde02 
0xffffff810cd6bdc0 : 0xffffff8000de17de 
0xffffff810cd6be10 : 0xffffff8000d2ef8c 
0xffffff810cd6be40 : 0xffffff8000d139f3 
0xffffff810cd6be90 : 0xffffff8000d2429d 
0xffffff810cd6bf10 : 0xffffff8000e0231a 
0xffffff810cd6bfb0 : 0xffffff8000e344c6 

What causes a null return address in the backtrace?

This is OS X 14F1713 on a MacBookPro11,1.

Thanks,
 - Andrew Keller

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