Re: utrace vs. ptrace

[Olaf Hering]

 On Tue, Jul 25, Linus Torvalds wrote:

> What you often want is not a core-dump at all, but a "stop the process" 
> thing. It's really irritating that the core-dump is generated and the 
> process is gone, when it would often be a lot nicer if instead of 
> core-dumping, the process was just stopped and then you could attach to it 
> with gdb, and get the whole damn information (including things like access 
> to open file descriptors etc).
> 
> But again, that has nothing to do with core-dumping. 

It would be helpful to have that sort of functionality in mainline.
Would a patch be acceptable that sends SIGSTOP instead of SIGSEGV or
SIGILL if some knob was enabled, either global or per process?
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