Re: crypto: sun4i-ss: error with kmap
From: Thomas Gleixner <hidden>
Date: 2020-12-04 15:09:26
Also in:
linux-crypto, linux-mm, lkml
On Fri, Dec 04 2020 at 14:26, Corentin Labbe wrote:
On Fri, Dec 04, 2020 at 12:34:05AM +0100, Thomas Gleixner wrote:quoted
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, http://kernel.montjoie.ovh/130466.log
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?
Thanks,
tglx
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