On Mon, Jan 14, 2019 at 11:46:59AM -0500, Joe Lawrence wrote: > @@ -158,11 +158,21 @@ save_stack_trace_tsk_reliable(struct task_struct *tsk, > return 1; /* invalid backlink, too far up. */ > } > > + /* We can only trust the bottom frame's backlink, the rest > + * of the frame may be uninitialized, continue to the next. */ > + if (firstframe--) > + goto next; Won't this decrement firstframe on every iteration, so when firstframe is 0, it will decrement it to -1, causing it to 'goto next' on all future iterations? -- Josh
