Kernel crashes after sleep: how to debug?

John Baldwin jhb at freebsd.org
Fri Jul 19 15:29:16 UTC 2013


On Thursday, July 18, 2013 8:56:58 pm Yuri wrote:
> On 07/18/2013 13:52, John Baldwin wrote:
> > Are you in frame 8?
> 
> For some reason the debug info is missing in frame 8, but is present in 
> surrounding frames 7 and 9.
> The might be a bug in makefiles that debug flag isn't passed into 
> sys/vm/ directory.

Well, you can probably find the value of 'm' in a register if you look at the 
dissassembly around the fault.  You can then cast that pointer to the right
type and print its contents.

-- 
John Baldwin


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