commit a3a441aeabd6c5c3c86b4793a283927507a5cc10
Author: Dave Anderson <anderson@redhat.com>
Date:   Mon Sep 22 16:25:16 2014 -0400

    Fix for the "ps" command performance degradation patch the was
    introduced in crash-7.0.8.  Without this patch, it is possible that
    the "ps" command may fail prematurely with the error message
    "ps: bsearch for tgid failed: task: <address> tgid: <number>"
    when running on a live system or against a "live" dumpfile.
    (panfy.fnst@cn.fujitsu.com)

diff --git a/memory.c b/memory.c
index 518c917..2376e6f 100644
--- a/memory.c
+++ b/memory.c
@@ -4187,54 +4187,52 @@ get_task_mem_usage(ulong task, struct task_mem_usage *tm)
 				tg = (struct tgid_context *)bsearch(&tgid, tgid_array, RUNNING_TASKS(), 
 					sizeof(struct tgid_context), sort_by_tgid);
 
-			if (tg == NULL)
-				error(FATAL, "bsearch for tgid failed: task: %lx tgid: %ld\n", 
-					task, tgid.tgid);
-
-			/* find the first element which has the same tgid */
-			first = tg;
-			while ((first > tgid_array) && ((first - 1)->tgid == first->tgid)) 
-				first--;
-
-			/* find the last element which have same tgid */
-			last = tg;
-			while ((last < (tgid_array + (RUNNING_TASKS() - 1))) && 
-				(last->tgid == (last + 1)->tgid))
-				last++;
-
-			while (first <= last)
-			{
-				/* count 0 -> filepages */
-				if (!readmem(first->task +
-					OFFSET(task_struct_rss_stat) +
-					OFFSET(task_rss_stat_count), KVADDR,
-					&sync_rss,
-					sizeof(int),
-					"task_struct rss_stat MM_FILEPAGES",
-					RETURN_ON_ERROR))
-						continue;
+			if (tg) {
+				/* find the first element which has the same tgid */
+				first = tg;
+				while ((first > tgid_array) && ((first - 1)->tgid == first->tgid)) 
+					first--;
+
+				/* find the last element which have same tgid */
+				last = tg;
+				while ((last < (tgid_array + (RUNNING_TASKS() - 1))) && 
+					(last->tgid == (last + 1)->tgid))
+					last++;
+
+				while (first <= last)
+				{
+					/* count 0 -> filepages */
+					if (!readmem(first->task +
+						OFFSET(task_struct_rss_stat) +
+						OFFSET(task_rss_stat_count), KVADDR,
+						&sync_rss,
+						sizeof(int),
+						"task_struct rss_stat MM_FILEPAGES",
+						RETURN_ON_ERROR))
+							continue;
 
-				rss += sync_rss;
-
-				/* count 1 -> anonpages */
-				if (!readmem(first->task +
-					OFFSET(task_struct_rss_stat) +
-					OFFSET(task_rss_stat_count) +
-					sizeof(int),
-					KVADDR, &sync_rss,
-					sizeof(int),
-					"task_struct rss_stat MM_ANONPAGES",
-					RETURN_ON_ERROR))
-						continue;
+					rss += sync_rss;
+
+					/* count 1 -> anonpages */
+					if (!readmem(first->task +
+						OFFSET(task_struct_rss_stat) +
+						OFFSET(task_rss_stat_count) +
+						sizeof(int),
+						KVADDR, &sync_rss,
+						sizeof(int),
+						"task_struct rss_stat MM_ANONPAGES",
+						RETURN_ON_ERROR))
+							continue;
 
-				rss += sync_rss;
+					rss += sync_rss;
 
-				if(first == last)
-					break;
-				first++;
-			}
+					if (first == last)
+						break;
+					first++;
+				}
 
-			tt->last_tgid = last;
+				tt->last_tgid = last;
+			}
 		}
 
 		/*  


commit 62b294b27ce08decb63b204aeb9c6d3d5ace96b2
Author: Dave Anderson <anderson@redhat.com>
Date:   Fri Sep 19 14:20:57 2014 -0400

    Fix for the one-time (dumpfile), or as-required (live system),
    gathering of tasks from the kernel pid_hash[] in 2.6.24 and later
    kernels.  Without the patch, if an entry in a pid_hash[] chain is
    not related to the "init_pid_ns" pid_namespace structure, any
    remaining entries in the hlist chain are skipped.
    (vvs@parallels.com)

diff --git a/task.c b/task.c
index b33c96a..66f2e0a 100644
--- a/task.c
+++ b/task.c
@@ -2033,7 +2033,7 @@ do_chained:
 		 *  Use init_pid_ns level 0 (PIDTYPE_PID).
 		 */
 		if (upid_ns != tt->init_pid_ns)
-			continue;
+			goto chain_next;
 
 		pid = upid - OFFSET(pid_numbers);