On May 13, 2014, at 21:13, Vadim Zhukov <persg...@gmail.com> wrote:

> 2014-05-13 19:06 GMT+04:00 Илья Аржанников <iarzhanni...@gmail.com>:
>> Hello.
>> 
>> I am trying to use linux port systrace. And I found the problem. When I run 
>> under systrace (it does not matter with -A or -a (actually it never came 
>> till -a)) something that use vfork systrace and children processes hangup. I 
>> saw in sources that linux port uses ptrace as backend because it's not a 
>> native systrace subsystem. And linux systrace try to rewrite vfork system 
>> call on sys_clone, but it give nothing. With fork everything is ok, because 
>> fork is wrap around clone syscall and systrace just add one more flag to 
>> call it.
>> 
>> Has anyone experience this problem?
> 
> Does this also happen with only one CPU?
Not applicable, I'm already trying it under virtual box with one cpu.  And on 
dedicated server with core-i7. 
> --
>  WBR,
>  Vadim Zhukov

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