Date: Sat, 15 Apr 1995 16:48:01 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: bsinger@databank.com (Ben Singer) Cc: hackers@FreeBSD.org Subject: Re: class=bridge ???, OPTI Message-ID: <199504152348.QAA05833@gndrsh.aac.dev.com> In-Reply-To: <199504152332.SAA12584@databank.com > from "Ben Singer" at Apr 15, 95 06:32:43 pm
next in thread | previous in thread | raw e-mail | index | archive | help
> > Rodney W. Grimes spake: > > > > > Is the `class=bridge' my problem, or just a bad motherboard/memory? > > > > No, but the opti chip set might be. Try setting the external cache > > to ``write through mode'', if that doesn't fix this strange crashes > > try setting the internal cache to ``write throught''. > > > > I have an Opti based board here, but it is not the ``super micro'' > > version and I have to run it with the external cache in write through > > mode. > > > > > FreeBSD 2.0.0-SNAP950322 #0: Sat Apr 8 10:39:53 1995 > > > ben@koko.ben:/usr/src/sys/compile/BONES > > > CPU: Pentium (Pentium-class CPU) 90 MHz Origin = "GenuineIntel" Id = 0x524 > > > This is a Pentium 735\\90 or 815\\100 Stepping=4 Features=0x1bf FPU VME PSE MCE CX8 > > > real memory = 16384000 (4000 pages) > > > avail memory = 14999552 (3662 pages) > > > Probing for devices on the ISA bus: > > > sc0 at 0x60-0x6f irq 1 on motherboard > > > sc0: VGA color <16 virtual consoles, flags=0x0> > [cut] > > > Probing for devices on the pci0 bus: > > > configuration mode 1 allows 32 devices. > > > pci0:16: OPTI, device=0xc822, class=bridge [not supported] > > > > > > Help appreciated... > > > > > > Ben > > > > > I tried write-through for external cache. It may make the machine very slow, but could you turn off all cacheing to see if this clears the problem. > cd /usr/ports/x11/gnuplot ; make > was ok, but then make install immediately froze the computer (i was in X). > I rebooted, and as soon as i logged in got a > > Fatal trap 12: page fault while in kernel mode > ... > Syncing disks... 20 20 20 20 20 [...] 20 giving up > > ...rebooted again, and right after npx0: INT 16 interface, another > Fatal trap 12, "hit reset please" > > Hm. I disabled both caches to write this. Does it seem to stay up and run fine with both caches disabled? This gives me a feeling for if we should pursue this as a cache problem, or start to look else where for the problem. > There isn't an option for internal cache mode, here's what i have: > > AMIBIOS Release 122494 > > Hidden Refresh: Enabled Turn this off. > CPU Address Pipeline Mode: Enabled Turn this off. > DRAM Row Address Hold: 2 CLK > DRAM Read CAS Pulse Width: 3 CLK > DRAM Write CAS Pulse Width: 3 CLK > DRAM RAS Precharge: 5 CLK Set the above four to the default values if they are not already. > Ext. Cache Mode: WrThru > Ext. Cache to DRAM Post Write: Disabled > Ext. Cache CAS Precharge: 2 CLK > Ext. Cache Read Burst Mode: 4-3-3-3 > Ext. Cache Write Burst Mode: 4-2-2-2 Are your cache SRAM's 15nS? > DRAM Base Memory: 640 KB > DRAM Region A Control Mode: Disabled > DRAM Region B Control Mode: Disabled > > Ben > -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199504152348.QAA05833>