How to debug kern.ipc.maxpipekva ?

Reply: Konstantin Belousov : "Re: How to debug kern.ipc.maxpipekva ?"
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From: Rozhuk Ivan <rozhuk.im_at_gmail.com>
Date: Tue, 26 May 2026 14:49:15 UTC

Hi!


I have some systems that have a lot of records in dmesg:
kern.ipc.maxpipekva exceeded; see tuning(7)
kern.ipc.maxpipekva exceeded; see tuning(7)
kern.ipc.maxpipekva exceeded; see tuning(7)


How to find out who consume all pipes memory?

Is it possible to add in kernel tuning to limit kern.ipc.maxpipekva per process? (like done with files and threads)