From mboxrd@z Thu Jan 1 00:00:00 1970 From: Helmut Wollmersdorfer Subject: Re: [Xen-devel] Re: xen 2.0.7 on VIA C3 (EPIA) Date: Tue, 06 Sep 2005 19:51:32 +0200 Message-ID: References: <9380aad705090311057a87f455@mail.gmail.com> <9380aad7050906061662bc3f13@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <9380aad7050906061662bc3f13@mail.gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-users-bounces@lists.xensource.com Errors-To: xen-users-bounces@lists.xensource.com To: xen-users@lists.xensource.com Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Chris Brookes wrote: >>No. But I compiled Kernel 2.6.12.4 yesterday with 'CONFIG_M386=y', got >>some warnings from the compiler related to '486 and higher instruction >>set', and will try this kernel today on my EPIAs ME6000. > Let us know how you get on. Seems fine. See the graphs at http://212.186.65.206/munin/nack.at/via2.nack.at.html (reboot at 17:00). Just for avoidance of confusing: This is a stock Debian Kernel 2.6.12.4 plus patches vserver 2.0 and vt1211. > I have a ME6000 board in another system, I assume it in the XEN source, if other kernels are running (2.4.24, 2.6.8 and now 2.6.12.4 work fine). > so if you have any success I'll have to swap them out. I think it has > the exact same CPU (aside from speed) though :-/ Yes: via2:~# cat /proc/cpuinfo processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 7 model name : VIA Samuel 2 stepping : 3 cpu MHz : 599.993 cache size : 64 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu de tsc msr cx8 mtrr pge mmx 3dnow bogomips : 1187.84 Maybe your chipset is a little bit different. Here is mine: via2:~# lspci 0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8623 [Apollo CLE266] 0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP] 0000:00:0d.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80) 0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 0000:00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge 0000:00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50) 0000:00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev74) 0000:00:14.0 Ethernet controller: Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE] (rev 36) 0000:01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8623 [Apollo CLE266] integrated CastleRock graphics (rev 03) > The freeze These low power EPIAs are "cool" - no wonder, that they freeze;-) > is occurring in the actual xen kernel, rather than in the > domain 0 linux/netbsd kernel that gets loaded. To be serious EPIAs are known to freeze often, which can have several reasons: - weak power supply - round "air flow" IDE/DMA cables - buggy kernel (all before 2.4.23) - the DMA bug - the longhaul driver bug - weak memory - to warm - to cold I have two with exactly same hardware, firmware and software, one running since 2 years (only interrupted at power outage or kernel change), the other freezing sometimes. A few weeks ago I changed the mainboard (had a blown condensator), but after 2 weeks it again freezed. Today I will change memory as a last trial. As a result I have now parts for a third EPIA, which can be expected to run some days - good enough for testing XEN kernels;-) Maybe you know the lock-up thread at http://forums.viaarena.com/messageview.aspx?catid=28&threadid=60131&enterthread=y with funny esoteric solutions. Helmut Wollmersdorfer