Increase MTasker stacksize

Throwing an exception uses libgcc's stack unwinder. On mips64el
the unwinder will overflow the default stack size of 8K. In turn
the return ucontext gets overwritten, resulting in a jump into
garbage.

diff --git a/pdns/mtasker.hh b/pdns/mtasker.hh
index 2014d5bcae6566109a492bab28ae9404253a7237..313d18f290930e963475bd8090d4ba2152f39b4f 100644 (file)
--- a/pdns/mtasker.hh
+++ b/pdns/mtasker.hh
@@ -110,7 +110,7 @@ public:
       This limit applies solely to the stack, the heap is not limited in any way. If threads need to allocate a lot of data,
       the use of new/delete is suggested. 
    */
-  MTasker(size_t stacksize=8192) : d_tid(0), d_maxtid(0), d_stacksize(stacksize), d_waitstatus(Error)
+  MTasker(size_t stacksize=16*8192) : d_tid(0), d_maxtid(0), d_stacksize(stacksize), d_waitstatus(Error)
   {
     initMainStackBounds();
   }