在Ubuntu 18.04.1上，我一直在使用lldb和llnode来调试node。我很好奇gdb是否会更好，所以我安装了它。之后，lldb无法再加载core文件。
这有效：
~$ lldb /usr/bin/node -c core
(lldb) target create "/usr/bin/node" --core "/home/ubuntu/core"
Core file '/home/ubuntu/core' (x86_64) was loaded.'
然后我安装了gdb：
~$ sudo apt install gdb
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
gdbserver libbabeltrace1 libc6-dbg libdw1
Suggested packages:
gdb-doc
The following NEW packages will be installed:
gdb gdbserver libbabeltrace1 libc6-dbg libdw1
0 upgraded, 5 newly installed, 0 to remove and 19 not upgraded.
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现在lldb无法再加载核心文件：
~$ lldb /usr/bin/node -c core
(lldb) target create "/usr/bin/node" --core "core"
error: core failed to load objfile for /home/ubuntu/core
error: Unable to find process plug-in for core file '/home/ubuntu/core'
该如何解决？我现在{@ 1}更喜欢我现在正在做的事情，并希望它回来。我尝试清除lldb及其附加软件包，然后清除并重新安装gdb，但这并不能解决任何问题。
答案 0 :(得分：2)
事实证明，lldb在诊断和报告自身问题方面很糟糕。 Unable to find process plug-in错误是failed to load objfile错误的直接结果。
failed to load objfile可以由任何原因引起。在某些版本中，这可能是由于权限导致核心文件不可读而引起的。在我的 post hoc，ergo propter hoc 案例中，gdb装置是一个红色鲱鱼。该问题的实际原因是其他进程消耗了足够的内存，因此没有足够的可用内存来加载核心映像。通过停止内存占用进程来释放计算机上的内存，可以解决此问题。