diff --git a/[refs] b/[refs]
index c74558d8a082..eed7603b2451 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d6f0f22c3c409f9ed88e64f881f8308730be76f0
+refs/heads/master: 77d233036ea886398770f208aa22235acf0d011c
diff --git a/trunk/arch/tile/kernel/setup.c b/trunk/arch/tile/kernel/setup.c
index e7d54c73d5c1..c1a697e68546 100644
--- a/trunk/arch/tile/kernel/setup.c
+++ b/trunk/arch/tile/kernel/setup.c
@@ -1334,6 +1334,10 @@ static void __init pcpu_fc_populate_pte(unsigned long addr)
 	pte_t *pte;
 
 	BUG_ON(pgd_addr_invalid(addr));
+	if (addr < VMALLOC_START || addr >= VMALLOC_END)
+		panic("PCPU addr %#lx outside vmalloc range %#lx..%#lx;"
+		      " try increasing CONFIG_VMALLOC_RESERVE\n",
+		      addr, VMALLOC_START, VMALLOC_END);
 
 	pgd = swapper_pg_dir + pgd_index(addr);
 	pud = pud_offset(pgd, addr);