Ditch aborted stack-space monitoring code.

bin/varnishd/cache/cache.h

@@ -288,9 +288,6 @@ struct worker {
 	unsigned		cur_method;
 	unsigned		seen_methods;
 	unsigned		handling;
-
-	uintptr_t		stack_start;
-	uintptr_t		stack_end;
 };
 
 /* Stored object -----------------------------------------------------

bin/varnishd/cache/cache_panic.c

@@ -318,8 +318,6 @@ pan_wrk(struct vsb *vsb, const struct worker *wrk)
 		return;
 	VSB_indent(vsb, 2);
 	PAN_CheckMagic(vsb, wrk, WORKER_MAGIC);
-	VSB_printf(vsb, "stack = {0x%jx -> 0x%jx},\n",
-	    (uintmax_t)wrk->stack_start, (uintmax_t)wrk->stack_end);
 	pan_ws(vsb, wrk->aws);
 
 	m = wrk->cur_method;

bin/varnishd/cache/cache_wrk.c

@@ -99,7 +99,6 @@ WRK_Thread(struct pool *qp, size_t stacksize, unsigned thread_workspace)
 	struct worker *w, ww;
 	struct VSC_main ds;
 	unsigned char ws[thread_workspace];
-	uintptr_t u;
 
 	AN(qp);
 	AN(stacksize);
@@ -115,14 +114,6 @@ WRK_Thread(struct pool *qp, size_t stacksize, unsigned thread_workspace)
 
 	WS_Init(w->aws, "wrk", ws, thread_workspace);
 
-	u = getpagesize();
-	AN(u);
-	u -= 1U;
-	w->stack_start = (((uintptr_t)&qp) + u) & ~u;
-
-	/* XXX: assuming stack grows down. */
-	w->stack_end = w->stack_start - stacksize;
-
 	VSL(SLT_WorkThread, 0, "%p start", w);
 
 	Pool_Work_Thread(qp, w);