commit ae2cb9b6e32dd662d891ffb3cc58b95f46281708
author Kevin Walls <kevinw@openjdk.org> Mon Jul 21 10:40:50 2014 +0100
committer Kevin Walls <kevinw@openjdk.org> Mon Jul 21 10:40:50 2014 +0100
tree cab5ac6315acb11618d2c4573a30c5a8f800770b
parent 3f0a94546831b59ada0c64578219d32c5c07e692

8049684: pstack crashes on java core dump

Reviewed-by: sundar, sspitsyn

hotspot/src/os/bsd/dtrace/libjvm_db.c

diff --git a/hotspot/src/os/bsd/dtrace/libjvm_db.c b/hotspot/src/os/bsd/dtrace/libjvm_db.c
index 18430f8..cf133b4 100644
--- a/hotspot/src/os/bsd/dtrace/libjvm_db.c
+++ b/hotspot/src/os/bsd/dtrace/libjvm_db.c
@@ -260,6 +260,9 @@
   uint64_t base;
   int err;
 
+  /* Clear *vmp now in case we jump to fail: */
+  memset(vmp, 0, sizeof(VMStructEntry));
+
   err = ps_pglobal_lookup(J->P, LIBJVM_SO, "gHotSpotVMStructs", &sym_addr);
   CHECK_FAIL(err);
   err = read_pointer(J, sym_addr, &gHotSpotVMStructs);

hotspot/src/os/solaris/dtrace/libjvm_db.c

diff --git a/hotspot/src/os/solaris/dtrace/libjvm_db.c b/hotspot/src/os/solaris/dtrace/libjvm_db.c
index 8f66418..40dada1 100644
--- a/hotspot/src/os/solaris/dtrace/libjvm_db.c
+++ b/hotspot/src/os/solaris/dtrace/libjvm_db.c
@@ -260,6 +260,9 @@
   uint64_t base;
   int err;
 
+  /* Clear *vmp now in case we jump to fail: */
+  memset(vmp, 0, sizeof(VMStructEntry));
+
   err = ps_pglobal_lookup(J->P, LIBJVM_SO, "gHotSpotVMStructs", &sym_addr);
   CHECK_FAIL(err);
   err = read_pointer(J, sym_addr, &gHotSpotVMStructs);