Date: Tue, 03 Jul 2007 11:20:53 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Chuck Swiger <cswiger@mac.com>, stas@FreeBSD.org Cc: Takeharu KATO <takeharu1219@ybb.ne.jp>, Suleiman Souhlal <ssouhlal@FreeBSD.org>, current@FreeBSD.org Subject: Re: [PATCH] Machine Check Architecture on amd64 Message-ID: <20070703112053.azox7spyw4oog8wk@webmail.leidinger.net> In-Reply-To: <4689295F.10109@mac.com> References: <46806B3E.2060701@FreeBSD.org> <4688EBC2.8070703@ybb.ne.jp> <27D8F2CD-156E-4962-A187-63E42CAE2B6F@FreeBSD.org> <4689295F.10109@mac.com>
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Quoting Chuck Swiger <cswiger@mac.com> (from Mon, 02 Jul 2007 12:35:43 -0400= ): > Suleiman Souhlal wrote: >> On Jul 2, 2007, at 5:12 AM, Takeharu KATO wrote: >>> Apparently, the patch does not have memory scrub facility. >>> Do you have a plan to implement the memory scrub facility like =20 >>> solaris does? >>> >>> P.S. In fact, I was also trying to implement the MCE facility, so =20 >>> I am interesting to your patch. >> >> While I don't know about Intel CPUs, K8 CPUs from AMD have a =20 >> hardware DRAM/data cache scrubber, so I didn't bother implementing =20 >> it, and I don't really plan to, at least in the near future. It =20 >> should, however, be pretty easy to implement. > > Agreed, at least some BIOSes have an advanced memory tuning page > somewhere which lets you enable or disable the BG cache memory > scrubbing on AMD64 chips. > > I'm at least as interested in getting FreeBSD-level support for loading > CPU microcode into a running system, as I've got a bunch of remote HP > or Dell PE boxes floating around in racks somewhere. Getting them to > boot into a DOS/Windows env to reflash their BIOS or update something > like a Intel or Broadcomm NIC to disable their remote management or > whatever is eating traffic to be more of a hassle than a convenience > even when one is not dealing with remote systems. less /usr/ports/sysutils/devcpu/pkg-descr Note, I'm not able to load microcode on my Athlon XP yet, Stanislav =20 would probably appreciate some help with this. Bye, Alexander. --=20 There is a vast difference between the savage and civilized man, but it is never apparent to their wives until after breakfast. =09=09-- Helen Rowland http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID =3D B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID =3D 72077137
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