diff options
| -rw-r--r-- | kernel/lockdep.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 1cedb00e3e7..2f0970297e3 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c @@ -367,11 +367,21 @@ static int save_trace(struct stack_trace *trace) save_stack_trace(trace); + /* + * Some daft arches put -1 at the end to indicate its a full trace. + * + * <rant> this is buggy anyway, since it takes a whole extra entry so a + * complete trace that maxes out the entries provided will be reported + * as incomplete, friggin useless </rant> + */ + if (trace->entries[trace->nr_entries-1] == ULONG_MAX) + trace->nr_entries--; + trace->max_entries = trace->nr_entries; nr_stack_trace_entries += trace->nr_entries; - if (nr_stack_trace_entries == MAX_STACK_TRACE_ENTRIES) { + if (nr_stack_trace_entries >= MAX_STACK_TRACE_ENTRIES-1) { if (!debug_locks_off_graph_unlock()) return 0; |