Messages in this thread | | | Date | Tue, 10 Apr 2007 20:37:14 +0400 | From | Oleg Nesterov <> | Subject | Re: [PATCH] Only send pdeath_signal when getppid changes. |
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On 04/10, Eric W. Biederman wrote: > > So this patch fixes the pdeath_signal behaviour only sending a signal > when the results of getppid would change.
Don't get me wrong, I personally like this patch very much. However,
A long ago, Albert Cahalan (cc-ed) wrote: > > I rely on thread-to-thread pdeath notification for my emulator. > I also need notification on loss of a thread-group or mm, so I do > my best to emulate those based on thread-to-thread notification. > > ... > > The way I use it pdeath_signal: > > The parent is one of many tasks within a task group. > The child is not within that thread group, but shares VM. > (the child is single threaded, existing only to get the signal) > For each task in the thread group, there is a child task > waiting for parent death notification. (there are two other > tasks sharing VM but not in the task group: one to do > async memory searching, and one to communicate with > a user interface for debugging -- like an interactive valgrind)
Oleg.
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