Gilles Chanteperdrix wrote: > Jan Kiszka wrote: >> Sebastian Smolorz wrote: >> >>> Jan Kiszka wrote: >>>> Are you tracing into vmalloc'ed memory? >>> Yes, without CONFIG_IPIPE_TRACE_VMALLOC the system does not boot. >> >> Hmm, makes me wonder of some laziness of the page mapping or a missing >> lock-against-swapping causes this. Could you have a closer look at the >> tracer code if we are lacking some magic for the vmalloc trace buffer >> (compare to the xnheap code, e.g.)? > > This is a known issue, the ARM architecture lacks the set_pgdir > function, needed in mm/vmalloc.c to workaround the lazy page mapping of > vmalloced areas. >
Would vmalloc+memset help to be safe for the remaining system runtime?
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