Hi Jose, On Fri, 2017-09-01 at 12:39 +0100, Jose Abreu wrote: > I recently came upon a scenario where I would get a double fault > after a machine check error. It turns out that for Ksymbol lookup > to work with modules we need to have MMU enabled because module > address is mapped in the cached space. > > This patch re-enables the MMU before start printing the stacktrace > making stacktracing of modules work upon a fatal exception.
I'm wondering how do we end up with MMU disabled? >From ARC700 databook I cannot find any condition on which MMU could be silently disabled by hardware and IIRC there's no code in Linux kernel that disables MMU. -Alexey _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
