vlib: fix segfault on panic in worker
Vlib panic uses longjmp to exit main loop, but workers don't set main_loop_exit
field on initialization, so this jump corrupts registers and causes segfault.
There I add clib_warning and abort if longjmp context hasn't been set.
Type: fix
Signed-off-by: Mikhail Sokolovskiy <sokolmish@gmail.com>
Change-Id: I0d705f1f139c4083af75066aeb525964ed0aa202
diff --git a/src/vlib/main.h b/src/vlib/main.h
index a9cfab4..94b8c4f 100644
--- a/src/vlib/main.h
+++ b/src/vlib/main.h
@@ -377,7 +377,13 @@
vlib_panic_with_error (vlib_main_t * vm, clib_error_t * error)
{
vm->main_loop_error = error;
- clib_longjmp (&vm->main_loop_exit, VLIB_MAIN_LOOP_EXIT_PANIC);
+ if (vm->main_loop_exit_set)
+ clib_longjmp (&vm->main_loop_exit, VLIB_MAIN_LOOP_EXIT_PANIC);
+ else
+ {
+ clib_warning ("panic: %U", format_clib_error, error);
+ abort ();
+ }
}
#define vlib_panic_with_msg(vm,args...) \