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    SubjectRe: [PATCH 08/28] nios2: MMU Fault handling
    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?

    > + _exception(SIGSEGV, regs, code, address);
    > + return;
    > + }
    > +
    --
    Ezequiel García, Free Electrons
    Embedded Linux, Kernel and Android Engineering
    http://free-electrons.com
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