uml: kill processes instead of panicing kernel

[platform/kernel/linux-arm64.git] / arch / um / kernel / trap.c

diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 8fd1a79..44e4904 100644 (file)
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -129,6 +129,18 @@ static void bad_segv(struct faultinfo fi, unsigned long ip)
        force_sig_info(SIGSEGV, &si, current);
 }
 
+void fatal_sigsegv(void)
+{
+       force_sigsegv(SIGSEGV, current);
+       do_signal();
+       /*
+        * This is to tell gcc that we're not returning - do_signal
+        * can, in general, return, but in this case, it's not, since
+        * we just got a fatal SIGSEGV queued.
+        */
+       os_dump_core();
+}
+
 void segv_handler(int sig, struct uml_pt_regs *regs)
 {
        struct faultinfo * fi = UPT_FAULTINFO(regs);