Date: Mon, 08 Oct 2007 17:28:51 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: ticso@cicely.de Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org, Pawel Jakub Dawidek <pjd@freebsd.org> Subject: Re: ZFS kmem_map too small. Message-ID: <86ve9hr5fw.fsf@ds4.des.no> In-Reply-To: <864ph17jmx.fsf@ds4.des.no> ("Dag-Erling =?utf-8?Q?Sm=C3=B8rg?= =?utf-8?Q?rav=22's?= message of "Mon\, 08 Oct 2007 16\:42\:30 %2B0200") References: <20071005000046.GC92272@garage.freebsd.pl> <20071008121523.GM2327@garage.freebsd.pl> <86bqb97mym.fsf@ds4.des.no> <20071008134407.GB67153@cicely12.cicely.de> <864ph17jmx.fsf@ds4.des.no>
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Dag-Erling Sm=C3=B8rgrav <des@des.no> writes: > Bernd Walter <ticso@cicely12.cicely.de> writes: > > On Mon, Oct 08, 2007 at 03:30:41PM +0200, Dag-Erling Sm=C3=B8rgrav wrot= e: > > > Speaking of which, I tried setting vm.kmem_size to 2G on a C2D system > > > with 4 GB RAM, but it simply panics: > > >=20 > > > OK set vm.kmem_size=3D2G > > This sounds like there's a signed 32 bit limit somewhere. > Yes, this is really stupid - vm.kmem_size is an int. Thanks for setting > me on the right track. Actually, somebody pointed out to me that due to the memory model used, amd64 can only have 2 GB KVA, and that includes other things besides kmem, so even with the tunable bug fixed, the best I can hope for is probably 1.5 GB. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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