cpuidle: remove unused exports

[pandora-kernel.git] / arch / i386 / mm / fault.c

diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index e92a101..fcb38e7 100644 (file)
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -249,9 +249,10 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
        pmd_k = pmd_offset(pud_k, address);
        if (!pmd_present(*pmd_k))
                return NULL;
-       if (!pmd_present(*pmd))
+       if (!pmd_present(*pmd)) {
                set_pmd(pmd, *pmd_k);
-       else
+               arch_flush_lazy_mmu_mode();
+       } else
                BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
        return pmd_k;
 }
@@ -283,6 +284,8 @@ static inline int vmalloc_fault(unsigned long address)
        return 0;
 }
 
+int show_unhandled_signals = 1;
+
 /*
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
@@ -469,6 +472,14 @@ bad_area_nosemaphore:
                if (is_prefetch(regs, address, error_code))
                        return;
 
+               if (show_unhandled_signals && unhandled_signal(tsk, SIGSEGV) &&
+                   printk_ratelimit()) {
+                       printk("%s%s[%d]: segfault at %08lx eip %08lx "
+                           "esp %08lx error %lx\n",
+                           tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
+                           tsk->comm, tsk->pid, address, regs->eip,
+                           regs->esp, error_code);
+               }
                tsk->thread.cr2 = address;
                /* Kernel addresses are always protection faults */
                tsk->thread.error_code = error_code | (address >= TASK_SIZE);