Re: PROBLEM: 4.1.4 -- Kernel Panic on shutdown

[Ron Murray <rjmx@rjmx.net>]

> On Aug 5, 2015, at 12:24, Peter Zijlstra <peterz@infradead.org> wrote:
> 
> On Wed, Aug 05, 2015 at 11:09:22AM -0500, Christoph Lameter wrote:
>>> [1.] One line summary of the problem:
>>>    4.1.4 -- Kernel Panic on shutdown
>> 
>> This is a kfree of an object that was not allocated via the slab
>> allocators or was already freed. If you boot with the kernel command line
>> argument "slub_debug" then you could get some more information. Could also
>> be that memory was somehow corrupted.
>> 
>> The backtrace shows that this is a call occurring in the
>> scheduler.
>> 
>> CCing scheduler developers.
> 
> I'll go have a look; but the obvious question is, what's the last known
> good kernel?
> 
>> 
>> 

4.0.x series still work for me. I had wondered about a memory fault (on the idea that a small shift in memory position might hit the fault), but memtest86 turned up nothing.

I will try re-compiling to use the SLAB allocator and see if that helps.

 .....Ron

--
Ron Murray <rjmx@rjmx.net>
PGP Fingerprint: 0ED0 C1D1 615C FCCE 7424  9B27 31D8 AED5 AF6D 0D4A


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