X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=arch%2Fi386%2Fmm%2Ffault.c;h=01ffdd4964f08e9bec86c5ae759da9f5cbe8270a;hb=abd4f7505bafdd6c5319fe3cb5caf9af6104e17a;hp=e92a10124935c006a22a55775b0aee755b2b08c3;hpb=efffbeee5bc4168059683714b300d307f5193d69;p=deliverable%2Flinux.git

diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c
index e92a10124935..01ffdd4964f0 100644
--- a/arch/i386/mm/fault.c
+++ b/arch/i386/mm/fault.c
@@ -283,6 +283,8 @@ 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 +471,14 @@ 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);