On 07/23/2014 04:06 PM, Denniston, Todd A CIV NAVSURFWARCENDIV Crane wrote:
... As for the VL-EPMs-21b, even though it worked OK in CentOS 5.9, it would always stop in the UDEV startup of CentOS 6.5 even after updating to the latest 6.5 kernel and using the above kernel options. Interestingly though while working with it, I noticed a little brown cube on the ESD bench where the board had been setting. Who would think that a missing capacitor might stop a new kernel, with a much faster IO engine, from accessing all the hardware in parallel (max power pull) at entry into user space? :) Beginning to think this one is not CentOS's fault. :) Fortunately I am expecting to get a new, not used before I got it, version ... sometime. :)
So I guess it is sort of solved for now. Thanks for taking a look.
Drive (320GB) used in both settings WD3200BEVE 500M boot 1GB swap minimal install, and using chroot in rescue, added: sos, pciutils, usbutils, ntpdate, openssh-clients, dmidecode, lynx
CPU card #1 Versa Logic Corp (Ocelot) VL-EPMs-21b http://www.versalogic.com/oce Intel Atom Z520, 1.33 GHz
I would have thought this one would have worked, but a missing cap might cause that failure. I have seen cap failures do strange things like this; once I was troubleshooting a radio station automation computer that passed POST and several diags but would hang going into Windows XP (it hung going into a liveCD of a Linux distribution, too, so it wasn't Windows' fault). I asked the DJ if anything unusual had happened when it first locked-up, to which she said, 'well, not really, except that gunshot I heard.' Turned out a capacitor had shot its casing with enough force that it dented the steel case cover; but the machine would run fine until enough power was being drawn to shut down the regulators. Again note that this machine not only passed POST but also memtest86.
CPU card #2 RTD cme37786hx http://www.rtd.com/manuals/archive/archive.htm http://www.rtd.com/manuals/archive/CME37786HX.pdf pdf page 14 has specs. VIA Eden CPU with Twister-T Chipset, 400 MHz to 1 GHz clock speed
The VIA Eden isn't officially support, but yours appears to have cmov, which is the usual problem with them and CentOS 5+.
I haven't personally tried an ISA-capable motherboard in a while with any modern CentOS......