On Apr 25, Ley Foon Tan wrote: > On Thu, Apr 24, 2014 at 11:22 PM, Ezequiel Garcia > <ezequiel.gar...@free-electrons.com> wrote: > >> > I found that it's useful to add some printing here, just as ARM > >> > does. I carry this patch on my kernel: > >> > > >> > + printk(KERN_INFO "%s: unhandled page fault (%d) at > >> > 0x%08lx, cause %ld\n", > >> > + current->comm, SIGSEGV, address, cause); > >> > + show_regs(regs); > >> > > >> > Do you think we could do something like it? Maybe with a compile time > >> > option? > >> Yes, this is useful debug message. I can add this. > >> Prefer not to add new compile time option, I think this shouldn't > >> happen frequently. > > > > No, it shouldn't happen frequently. You can take a look at what ARM does. > > They use a DEBUG_USER compile-time option, much more complex than my silly > > proposal. > For now, we can print it always if this shouldn't happen frequently. > Compile time option can be added later if we have more other debug > stuff to print later. >
OK, sound sensible. -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- 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/
