On Saturday 23 June 2018 23:35:01 Jon Elson wrote: > Ugh, things are not going well. So far, this is a stock > build from source (plus the default binary load from the > .iso download.) > > So, when I run the binary version 2.7.14 with a NetMos PCIe > parport card, it does not communicate properly, as > expected. If I put in the epp_dir=1 option on the loadrt > command line, I get "unknown symbol in module". (I thought > 2.7.14 would have had that option available in the hal_ppmc > driver. > I thought it went in at 2.7.9 or so.) > > But, if I run the compiled from source version (2.8.0~pre1) > I get a kernel crash of varying flavor. > Sometimes I get a panic screen with kernel null pointer in > PREEMPT SMP, other times it locks up a couple seconds after > loading the hal_ppmc driver. Hmmm, that could be pretty > tough to debug. > > (2.8.0~pre1 runs fine with software stepping to the parallel > port. It also seems to run fine with a Siig parport card > using the sample config that came with 2.8. If I use one of > my old configs, I also get the > kernel crash. I will have to compare the config file set to > see what could be different.) > > This system was loaded from an old .iso DVD, but I didn't > think there was any update to the OS. > It is 3.4-9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55 > LinuxCNC i686 > > The above is a bit confusing - rtai OR preempt? I didn't > think it could be both. But, I think I did the make with > the preempt option, so if the kernel is rtai, maybe that is > the problem. > > Well, any comments would be very welcome! > > Jon > There is one kernel of about that pedigree that claims to be pae, but is not. It has a couple other gotcha's and perhaps that the problem?
I'm running this one one the g0704 which seems to be fine: 3.16.0-0.bpo.4-amd64 #1 SMP Debian 3.16.39-1+deb8u1~bpo70+1 (2017-02-24) x86_64 GNU/Linux > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
