Messages in this thread |  | | Date | Tue, 3 Oct 2000 17:03:51 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: NGROUPS_MAX |
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On Tue, 3 Oct 2000, Jeff Garzik wrote:
> On Wed, 4 Oct 2000, Craig Whitmore wrote: > > I need to set up a server with a user that is in more than 32 groups at a time > > and as far as I know NGROUPS_MAX in limits.h changes this maximum. > > If I increase (say to 256) this will this break anything or will linux work perfectly > > well? > > I am interested in the answer too, though I suspect this belongs on the > glibc not linux-kernel list. > > Some ports of glibc have it as high as 256, but I don't think that port > is based on the Linux kernel.
Secondary groups' array is a part of task_struct, so you are risking to eat too much space from the kernel stack (256 words is a fairly large chunk when taken out of 8Kb)
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