如何在事后 gdb 会话中查找导致 SEGFAULT 的线程?
在我的应用程序中,我处理 SIGSEG 以生成回溯并调用 abort()
以生成核心转储.
In my application, I handle SIGSEG to produce a backtrace and call abort()
to generate a core dump.
如果我现在对内核运行 gdb-post-mortem 分析,导致 SEGFAULT 的线程不再可见.有什么办法可以让我看到 SEGFAULT 的原因吗?
If I now run a gdb-post-mortem analysis of the core, the thread which caused the SEGFAULT is no longer visible. Is there anything I can do so I see the cause for the SEGFAULT?
推荐答案
您可以使用命令thread apply all bt
或thread apply all bt full
来获取所有的回溯线程.可能有用.
You can use command thread apply all bt
or thread apply all bt full
to get backtraces of all threads. Might be useful.
顺便说一句,如果你摆脱你的处理程序,你的操作系统会创建一个核心文件吗?
By the way if you get rid of you handler will your OS create a core file?
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