Date: Wed, 10 Feb 1999 09:42:16 -0800 From: David Greenman <dg@root.com> To: Terry Lambert <tlambert@primenet.com> Cc: dillon@apollo.backplane.com, kuku@gilberto.physik.RWTH-Aachen.DE, hackers@FreeBSD.ORG Subject: Re: portability of shm, mmap, pipes and socket IPC Message-ID: <199902101742.JAA17281@implode.root.com> In-Reply-To: Your message of "Wed, 10 Feb 1999 17:24:00 GMT." <199902101724.KAA13526@usr07.primenet.com>
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>> >:The overall size of the shared memory segment is limited to that >> >: which can fit in the kernels virtual address space; this >> >: artificially restricts the maximum size. >> >> That isn't true and hasn't been true for several years in FreeBSD. > >Are you sure? Yes, I'm quite sure. >>From my reading of sysv_shm.c: > > shmmap_s = malloc(size, M_SHM, M_WAITOK); > >seems to limit the size to what's allocable in the KVA. The above malloc allocates space for a struct shmmap_state. RTSL. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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