On 07/25/2012 09:59 AM, Michael Haubenwallner wrote: > On 07/25/2012 03:05 AM, Chet Ramey wrote: >> Bash holds on to the status of all terminated processes, not just >> background ones, and only checks for the presence of a newly-forked PID >> in that list if the list size exceeds CHILD_MAX.
> The AIX 6.1 I've debugged on has: > #define CHILD_MAX 128 > I'm going to run this build job with 'truss -t kfork' again, to eventually > find > some too small count of different PIDs before PID-recycling by the kernel... Tracing shows: The minimum fork count (including grand-childs to any depth) before PID recycling starts looks like 255 (once), but usually 256 and more. However, one process does see a PID recycled after *at least* 128 forks, that is exactly the value of CHILD_MAX. First thought is of some off-by-one bug, but reducing js.c_childmax in jobs.c (2 times) by one doesn't help. Investigating further... any hints what to look out for? /haubi/
