Date: Wed, 5 Dec 2007 11:01:02 -0600 (CST) From: Mark Tinguely <tinguely@casselton.net> To: freebsd-questions@freebsd.org, phoemix@harmless.hu Subject: Re: more then 2G shm on RELENG_7 Message-ID: <200712051701.lB5H12Ih058055@casselton.net> In-Reply-To: <20071205114619.GA32423@harmless.hu>
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on Wed Dec 5 12:11:15 2007, Gergely Czuczy asks: > > I'm to test PostgreSQL on a 7-BETA3. The box has 12GB of memory in it, > I've adjusted the sysctls, but postgresql always fails to allocate the > SHM if it's bigger then 2GB. > > How can I make it to allocate more SHM than 2G at once? > > sysctl.conf: > kern.ipc.shmall=3D1572864 > kern.ipc.shmmax=3D6442450944 > kern.ipc.semmap=3D1024 > kern.ipc.shm_use_phys=3D1 > > /boot/loader.conf: > zfs_load=3D"YES" > vm.kmem_size=3D"1073741824" > vm.kmem_size_max=3D"1073741824" > kern.ipc.semmni=3D1024 > kern.ipc.semmns=3D2048 > kern.ipc.semmnu=3D1024 > > I've also hit a similar issue with qemu, but that wasn't shared memory, > I had just tried to make it allocate more than 2GBs for a single vm, but > that also failed. Still haven't figured out why was that. Is this an i386 or amd64 arch? What is the returned error code? (this might tell a lot). I notice that the allocation size for the syscall is an "int". --Mark Tinguely.
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