On Thu, 2015-03-05 at 01:54 +0100, Ingo Molnar wrote: > * Daniel Thompson <daniel.thomp...@linaro.org> wrote: > > > Much of the code sitting in arch/x86/kernel/apic/hw_nmi.c to support > > safe all-cpu backtracing from NMI has been copied to printk.c to > > make it accessible to other architectures. > > > > Port the x86 NMI backtrace to the generic code. > > Is there any difference between the generic and the x86 code as they > stand today?
Shouldn't be any user observable change but there are some changes, mostly due to review comments. 1. The seq_buf structures are initialized at boot and *after* they are consumed (originally they were initialized just before use). 2. The generic code doesn't maintain an equivalent of backtrace_mask (which was essentially a copy of cpus_online made when backtracing was requested) and instead iterates using for_each_possible_cpu() to initialize and dump the seq_buf:s. Daniel. PS The main piece that git code motion tracking should follow if I squashed the generic and x86 patches together would be nmi_vprintk(). I suspect most of the rest would be missed as the code copies is in pretty small fragments. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
