Re: crypto: sun4i-ss: error with kmap
From: Corentin Labbe <clabbe.montjoie@gmail.com>
Date: 2020-12-04 19:28:56
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linux-crypto, linux-mm, lkml
On Fri, Dec 04, 2020 at 04:08:27PM +0100, Thomas Gleixner wrote:
On Fri, Dec 04 2020 at 14:26, Corentin Labbe wrote:quoted
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.logDoes not provide more information with the debug enabled. So can you please enable CONFIG_FUNCTION_TRACER and add 'ftrace=function' to the command line?
Done, http://kernel.montjoie.ovh/130490.log _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel