crypto: sun4i-ss: error with kmap

Thomas Gleixner tglx at
Fri Dec 4 10:08:27 EST 2020

On Fri, Dec 04 2020 at 14:26, Corentin Labbe wrote:
> On Fri, Dec 04, 2020 at 12:34:05AM +0100, Thomas Gleixner wrote:
>> The unmap comes from sg_miter_stop() and looking at the previous
>> map/unmap cycles there are never nested maps.
>> [  996.943030] cryptset-316       0d..4 73943317us : __kmap_local_pfn_prot: kmap_local_pfn: 1 ffefd000
>> is the first event which allocates a nested map. 
>> So something goes south either in sg_miter or in the crypto maze.
>> Enabling CONFIG_DEBUG_KMAP_LOCAL and function tracing might give us more clue.
> Done,

Does not provide more information with the debug enabled. So can you
please enable CONFIG_FUNCTION_TRACER and add 'ftrace=function' to the
command line?



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