[PATCH] systemtap: Blacklist powerpc:hash_fault tracepoint

[Hemant Kumar]

Commit c4a048331603a3fe19c886498e957f5f2a577ed9 blacklists hcall_*
kernel tracepoints for powerpc to avoid recursive page faults and
kernel panic due to that. powerpc:hash_fault should be blacklisted
too, since, its placed in the same path of kernel code which is
invoked on a page fault.

Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
---
 tapsets.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tapsets.cxx b/tapsets.cxx
index db1e7cc..5ac339f 100644
--- a/tapsets.cxx
+++ b/tapsets.cxx
@@ -11424,7 +11424,8 @@ tracepoint_query::handle_query_func(Dwarf_Die * func)
       if ((sess.architecture.substr(0,3) == "ppc" ||
            sess.architecture.substr(0,7) == "powerpc") &&
           (tracepoint_instance == "hcall_entry" ||
-           tracepoint_instance == "hcall_exit"))
+           tracepoint_instance == "hcall_exit" ||
+	   tracepoint_instance == "hash_fault"))
         {
           sess.print_warning(_F("tracepoint %s is blacklisted on architecture %s",
                                 tracepoint_instance.c_str(), sess.architecture.c_str()));
-- 
2.7.4