Re: limitations on sysv ipc message queues on Linux

Alan Cox (
Sat, 5 Dec 1998 18:31:44 +0000 (GMT)

> and per process limits. As it stands now if one sets msgmax to 64K then
> there is nothing stopping a user from creating 64K*128=8M of unswappable
> message buffers.

Perhaps there should be a limit for 'total memory used by a queue' and
'total memory used by all queues' as well as count/size limits ?

> keeps track of that info, but I don't know where the user limits should go.
> struct rusage looks like it is the right place, but can this be modified
> without breaking apps?

Not really

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