Re: [Crash-utility] [PATCH] Fix x86 initialization for {hard, soft}irq_ctx

Dave Anderson <anderson(a)redhat.com&gt; writes: Debugged this case. The root cause is nested stack of softirq => hardirq. Now doesn't handle it correctly, and the patch attacked. BTW, with this patch, "bt -t" seems to be working at least. "bt" is failed sometime by confusion of stack-frame detection, this one is harder to fix. [BTW, current x86_get_pc() uses inactive_task_frame_ret_addr to get pc. However, inactive_task_frame is only valid if task is sleeping state. (running task may overwrite inactive_task_frame already.) I'm not sure whether we should check is_task_active() or not. Even if checking is_task_active(), we can't get pc correctly anyway.] Thanks. -- OGAWA Hirofumi <hirofumi(a)mail.parknet.co.jp&gt;