Date: Mon, 13 Oct 2008 07:38:58 +0200 From: "David Peall" <david@esn.org.za> To: "Jeremy Chadwick" <koitsu@FreeBSD.org>, "Adam McDougall" <mcdouga9@egr.msu.edu> Cc: freebsd-stable@freebsd.org, freebsd-amd64@freebsd.org Subject: RE: am2 MBs - 4g + SCSI wipes out root partition Message-ID: <FFF7941F7B184445881228ABAD4494B34E72EE@intsika.ct.esn.org.za> In-Reply-To: <20081011165250.GA67552@icarus.home.lan> References: <200810101429.37244.joao@matik.com.br><20081011113057.7402300c@ernst.jennejohn.org><20081011101316.GA58119@icarus.home.lan><20081011164529.198f32c6@ernst.jennejohn.org><20081011144817.GB64861@icarus.home.lan><48F0D3B5.6070602@egr.msu.edu> <20081011165250.GA67552@icarus.home.lan>
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> aac(4) - not affected > aha(4) - unknown > ahb(4) - unknown > ahc(4) - affected > ahd(4) - unknown; no one answered the OP's question in the thread > asr(4) - unknown > ips(4) - unknown > mpt(4) - not affected > mfi(4) - unknown > sym(4) - unknown I'm using amd64 with 8Gb RAM with the following: mfi0: <Dell PERC 6> port 0xec00-0xecff mem 0xfc480000-0xfc4bffff,0xfc440000-0xfc47ffff irq 16 at device 0.0 on pci1 mfi0: Megaraid SAS driver Ver 2.00 mfi0: 4914 (boot + 3s/0x0020/info) - Firmware initialization started (PCI ID 0060/1000/1f0c/1028) mfi0: 4915 (boot + 3s/0x0020/info) - Firmware version 1.11.52-0349 mfi0: 4917 (boot + 3s/0x0020/info) - Package version 6.0.1-0080 No problems. -- David Peall :: IT Manager e-Schools' Network :: http://www.esn.org.za/ Phone +27 (021) 674-9140 > -----Original Message----- > From: owner-freebsd-stable@freebsd.org [mailto:owner-freebsd- > stable@freebsd.org] On Behalf Of Jeremy Chadwick > Sent: 11 October 2008 06:53 PM > To: Adam McDougall > Cc: freebsd-stable@freebsd.org; freebsd-amd64@freebsd.org > Subject: Re: am2 MBs - 4g + SCSI wipes out root partition >=20 > On Sat, Oct 11, 2008 at 12:26:29PM -0400, Adam McDougall wrote: > > Jeremy Chadwick wrote: > >> On Sat, Oct 11, 2008 at 04:45:29PM +0200, Gary Jennejohn wrote: > >>> On Sat, 11 Oct 2008 03:13:16 -0700 > >>> Jeremy Chadwick <koitsu@FreeBSD.org> wrote: > >>> > >>>> On Sat, Oct 11, 2008 at 11:30:57AM +0200, Gary Jennejohn wrote: > >>>>> On Fri, 10 Oct 2008 14:29:37 -0300 > >>>>> JoaoBR <joao@matik.com.br> wrote: > >>>>> > >>>>>> I tried MBs as Asus, Abit and Gigabyte all same result > >>>>>> > >>>>>> Same hardware with SATA works perfect > >>>>>> > >>>>>> Same hardware with scsi up to 3.5Gigs installed works perfect > >>>>>> > >>>>>> what calls my attention that all this MBs do not have the > >>>>>> memroy hole remapping feature so the complete 4gigs are > >>>>>> available what normally was not the case with amd64 Mbs for the > >>>>>> Athlon 64 CPUs > >>>>>> > >>>>>> some has an opinion if this is a freebsd issue or MB falure or > >>>>>> scsi drv problem? > >>>>>> > >>>>> It's a driver problem. If you want to use SCSI then you'll have to > limit > >>>>> memory to 3.5 GB. > >>>> What you're saying is that Adaptec and LSI Logic SCSI controllers behave > >>>> badly (and can cause data loss) on amd64 systems which contain more than > >>>> 3.5GB of RAM. This is a very big claim. > >>>> > >>>> Have you talked to Scott Long about this? > >>>> > >>>> Please expand on this, and provide evidence or references. I need to > >>>> document this in my Wiki if it is indeed true. > >>>> > >>> See the freebsd-scsi thread with Subject "data corruption with ahc driver > >>> and 4GB of memory using a FBSD-8 64-bit installation?" from Wed, 30 Jan > >>> 2008. > >>> > >>> This was for ahc, but the bit-rot which Scott mentions in his reply might > >>> also apply to the LSI Logic controllers. > >>> > >>> Basically the driver doesn't correctly handle DMA above 4GB. Since the > PCI > >>> hole gets mapped above 4GB it causes problems. the (S)ATA drivers don't > seem > >>> to have this problem. > >> > >> Thank you -- this is the exact information I was looking for. > >> > >> I will update my Wiki page to reflect this quite major problem. > >> > > > > I am using some LSI (mpt driver) ultra4 (U320 scsi) and LSI SAS > > controllers in FreeBSD 7.x amd64 with 20G of ram, and Adaptec (aac > > driver) with a 5th generation RAID card with 8G of ram, both have no > > such corruption problems. Providing this as a counter-example just to > > document some evidence of which products seem to work fine. >=20 > Is your LSI SAS controller driven by mpt(4) or mfi(4)? >=20 > Let's break down what we know for sure at this point: >=20 > aac(4) - not affected > aha(4) - unknown > ahb(4) - unknown > ahc(4) - affected > ahd(4) - unknown; no one answered the OP's question in the thread > asr(4) - unknown > ips(4) - unknown > mpt(4) - not affected > mfi(4) - unknown > sym(4) - unknown >=20 > Could the problem be specific to certain firmware revisions on the > cards? >=20 > Also adding Scott Long to the CC list. >=20 > -- > | Jeremy Chadwick jdc at parodius.com | > | Parodius Networking http://www.parodius.com/ | > | UNIX Systems Administrator Mountain View, CA, USA | > | Making life hard for others since 1977. PGP: 4BD6C0CB | >=20 > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
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