Date: Fri, 10 Dec 2004 08:36:50 -0700 (MST) From: Scott Long <scottl@freebsd.org> To: L G <vamosl@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Perc 4e/di amr driver Message-ID: <20041210083453.W398@pooker.samsco.org> In-Reply-To: <9a1d931704121002183d3b2886@mail.gmail.com> References: <9a1d931704121002183d3b2886@mail.gmail.com>
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On Fri, 10 Dec 2004, L G wrote: > Hi, > Im installing 5.3 amd64 on Dell Poweredge servers 2800 and 2850. All > machines have 4 to 8gb of ram and Perc 4e/di hardware Raid controller. > The install does not boot completely because of the amr driver for the > Perc 4e/di not recognising 4gb+. To solve this I specify hw.physmem=4G > at boot time. The system then recognises 3.3gb of the ram. > To solve the issue of the amr driver i took the driver source from > 6.0-CURRENT kernel source, replacing the driver in the 5.3 kernel > source with it and compiling a new kernel. This worked and now all > system ram is recognised. > My question is,as these servers will be production servers under a > heavy load a lot of the time,will this new driver be stable enough to > use or is it a risk. > Thanks. The same changes that you grabbed from 6-CURRENT were made to 5-STABLE a few days ago, so you can just go ahead and update your whole system. 5.3-RELEASE has other bugs in >4GB handling that I've also fixed in 5-STABLE, and the AMR fixes rely on these fixes. But to answer your question, the driver is very stable under load now. Scott
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