On 11/7/17 5:56 AM, valdis.kletni...@vt.edu wrote:
> I've hit this 6 times now, across 3 boots:
> 
> Nov  3 11:04:54 turing-police kernel: [  547.814748] BUG: sleeping function 
> called from invalid context at mm/slab.h:422
> 
> Nov  3 20:24:11 turing-police kernel: [   60.093793] BUG: sleeping function 
> called from invalid context at mm/slab.h:422
> Nov  4 20:20:54 turing-police kernel: [86264.366955] BUG: sleeping function 
> called from invalid context at mm/slab.h:422
> Nov  5 19:17:40 turing-police kernel: [172469.769179] BUG: sleeping function 
> called from invalid context at mm/slab.h:422
> Nov  6 06:07:37 turing-police kernel: [211467.239460] BUG: sleeping function 
> called from invalid context at mm/slab.h:422
> 
> Nov  6 14:12:43 turing-police kernel: [   54.891848] BUG: sleeping function 
> called from invalid context at mm/slab.h:422
> 
> Something seems to be going astray while handling a RA packet.

Odd. I tested RA before sending the patches and again just now - no
traceback with an RCU / lock debugging kernel. What is sending the RA's
in your case? I'd like to understand the config and add a test for this.

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