Date: Tue, 2 Nov 2010 20:20:12 GMT From: Karl-Heinz Wild <kh.wild@barga.com> To: freebsd-i386@FreeBSD.org Subject: Re: i386/151896: increasing kmem_size in loader.conf panic Message-ID: <201011022020.oA2KKCF8018894@freefall.freebsd.org>
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The following reply was made to PR i386/151896; it has been noted by GNATS. From: Karl-Heinz Wild <kh.wild@barga.com> To: Remko Lodder <remko@elvandar.org> Cc: freebsd-gnats-submit@FreeBSD.org Subject: Re: i386/151896: increasing kmem_size in loader.conf panic Date: Tue, 2 Nov 2010 20:51:33 +0100 Hi Remko Thank you for answering. Good and worse as well :) Best regards On 02.11.2010, at 20:43, Remko Lodder wrote: >=20 > On Nov 2, 2010, at 8:31 PM, Karl-Heinz Wild wrote: >=20 >>=20 >>> Number: 151896 >>> Category: i386 >>> Synopsis: increasing kmem_size in loader.conf panic >>> Confidential: no >>> Severity: serious >>> Priority: high >>> Responsible: freebsd-i386 >>> State: open >>> Quarter: =20 >>> Keywords: =20 >>> Date-Required: >>> Class: sw-bug >>> Submitter-Id: current-users >>> Arrival-Date: Tue Nov 02 19:40:11 UTC 2010 >>> Closed-Date: >>> Last-Modified: >>> Originator: Karl-Heinz Wild >>> Release: 8.1, -current >>> Organization: >> barga.com >>> Environment: >> FreeBSD pool.barga.com 9.0-CURRENT FreeBSD 9.0-CURRENT #2: Sun Oct 31 = 16:21:25 CET 2010 root@pool.barga.com:/usr/obj/usr/src/sys/PAE i386 >>> Description: >> We are running a Intel Xeon E5520 @ 2.27 machine with an 3ware = controller do serve 5.7 TG storage ofer zfs. >>=20 >> When running the server with the given 16 GB Ram we are unable do = increase inside the loader.conf the settings vm.kmem_size and = vm.kmem_size_max over 320MB. >>=20 >> After trying lots of values change the memory banks because of a = possible ram error without success. >> Then we removed 8GB and afterwards it was possible to extend the = kmem_size to 512MB. >>=20 >>=20 >>> How-To-Repeat: >> Running -Current from 29.Oct 2010 with PAE on a system with 16GB = Memory, an 3ware Raid controller and PAE config: KVM_PAGES 512 >>=20 >> loader.conf: >> vm.kmem_size=3D"512M" >>=20 >=20 >=20 >=20 > Yes well, i386 is not designed to handle more then 4gb of memory, = while the PAE set does allow for some more memory you _need_ amd64 to = get 16gb available and addressable. > I honestly do not think you can ever get that far with i386 (not even = with PAE). >=20 > --=20 > /"\ Best regards, | remko@FreeBSD.org > \ / Remko Lodder | > X http://www.evilcoder.org/ | Quis custodiet ipsos custodes > / \ ASCII Ribbon Campaign | Against HTML Mail and News >=20 >=20 >=20 >=20 Mit freundlichen Gr=FCssen --- Karl-Heinz Wild kh.wild@barga.com barga.com - technische Dienstleistungen GmbH A-6805 Feldkirch Leusbuendtweg 49a
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