Re: [PATCH] 2.1.4 master process counting

[Jeremy Howard]

Henrique de Moraes Holschuh wrote:

>Still, I am seriously thinking about doing something to any unknown children
>master notices (with proper LOG_ERR logging, of course) because said
>children is messaging it.  Such a thing (unknown children) can only happen
>if either the underlying OS is messed up, or if we have a bug or memory
>corruption in the linked list, AFAIK.
>  
>
Actually this can happen. The CHLD signal handler can run before master 
gets to process the child's message. We see this happen quite regularly 
on a busy server.