Messages in this thread Patch in this message |  | | From | Josh Poimboeuf <> | Subject | [PATCH 3/3] proc: fix /proc/<pid>/stack for running tasks | Date | Mon, 16 Feb 2015 12:52:36 -0600 |
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Reading /proc/<pid>/stack for a running task can show garbage. Use the new safe version of the stack saving interface. For running tasks (other than current) it won't show anything.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- fs/proc/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c index 3f3d7ae..4c3f5d5 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -288,7 +288,7 @@ static int proc_pid_stack(struct seq_file *m, struct pid_namespace *ns, err = lock_trace(task); if (!err) { - save_stack_trace_tsk(task, &trace); + save_stack_trace_tsk_safe(task, &trace); for (i = 0; i < trace.nr_entries; i++) { seq_printf(m, "[<%pK>] %pS\n", -- 2.1.0
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