On Thu, Sep 05, 2013 at 12:47:02PM +0530, Aneesh Kumar K.V wrote: > @@ -280,6 +280,13 @@ int __kprobes do_page_fault(struct pt_regs *regs, > unsigned long address, > > perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); > > + /* > + * We want to do this outside mmap_sem, because reading code around nip > + * can result in fault, which will cause a deadlock when called with > + * mmap_sem held > + */ > + store_update = store_updates_sp(regs);
We should only call store_updates_sp() if user_mode(regs); that was the previous behaviour. Paul. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
