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    SubjectRe: [PATCH 08/28] nios2: MMU Fault handling
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    On Tue, Apr 22, 2014 at 10:30 PM, Ezequiel Garcia
    <ezequiel.garcia@free-electrons.com> wrote:
    > Hello Ley Foon,
    >
    > On Apr 18, Ley Foon Tan wrote:
    >> +
    >> +bad_area_nosemaphore:
    >> + /* User mode accesses just cause a SIGSEGV */
    >> + if (user_mode(regs)) {
    >
    > 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.
    >
    >> + _exception(SIGSEGV, regs, code, address);
    >> + return;
    >> + }
    >> +


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