From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Sat, 8 Sep 2018 16:31:58 +0000 (+0200)
Subject: realign ucontext stack after #6719
X-Git-Tag: dnsdist-1.3.3~108^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=43c3c21ed15b52b43d69972985e8cc7f8240c1f5;p=pdns

realign ucontext stack after #6719
---

diff --git a/pdns/mtasker_ucontext.cc b/pdns/mtasker_ucontext.cc
index d7663e340..2cecc97f4 100644
--- a/pdns/mtasker_ucontext.cc
+++ b/pdns/mtasker_ucontext.cc
@@ -134,7 +134,7 @@ pdns_makecontext
     }
     mcp->uc_link = next;
     mcp->uc_stack.ss_sp = ctx.uc_stack.data();
-    mcp->uc_stack.ss_size = ctx.uc_stack.size();
+    mcp->uc_stack.ss_size = ctx.uc_stack.size()-1;
     mcp->uc_stack.ss_flags = 0;
 
     auto ctxarg = splitPointer (&ctx);