Messages in this thread | | | Date | Mon, 20 Sep 2004 16:07:33 +0400 | From | Kirill Korotaev <> | Subject | Re: [Q] why switch_exec_pids() changes thread group leader pid? |
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William Lee Irwin III wrote: > On Mon, Sep 20, 2004 at 03:29:47PM +0400, Kirill Korotaev wrote: > >>I've been looking through switch_exec_pids() function and found that it >>changes thread group leader PID/TGID. Is it really a good idea to change >> pid of the process during it's lifetime? I could understand if it was >>happenning in the context of that process, but pid changes everytime a >>thread calls do_execve(). >>As far as I can see, leader doesn't have to do any of detach_pid()'s. >>Instead thread should change it's PID/TGID. > > > It's only done when a thread that is not a thread group leader > execve()'s. This is actually pretty rare and confined to threaded > applications, so it should be almost never called. Heh, rare doesn't mean correct, yeah? :)
Kirill
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