Jan Kiszka wrote: > Karl Reichert wrote: > > Jan Kiszka wrote: > >> Nadym Salem wrote: > >>> Hello, > >>> > >>> working on the same project as Karl Reichert, I'm using the same > >>> configuration and start script. As soon as I configure the tdma cycle > >>> (tdmacfg rteth0 master 5000) the keyboard stops working. Cursor keeps > >>> blinking and the script also runs to the end after that command, so I > >>> guess it's only the keyboard and the machine keeps running. > >>> > >>> Logfiles only say "RTmac/TDMA: init time division multiple access > >> control > >>> mechanism" > >>> > >>> Do you have any idea ? > >> Often, such plain lock-ups point to IRQ conflicts of the RT subsystem > >> with Linux (though Xenomai 2.3 should tell you about this). Please > check > >> your hardware setup (/proc/interrupts, /proc/xenomai/irq). > > > > Hi Jan and all others. Will give you further information concering this > problem. > > > > /var/log/messages: > > [...] > > Jul 12 13:40:01 rtnet kernel: [15372.838147] *** RTnet 0.9.9 - built on > Jun 7 2007 12:09:59 *** > > Jul 12 13:40:01 rtnet kernel: [15372.838148] > > Jul 12 13:40:01 rtnet kernel: [15372.838152] RTnet: initialising > real-time networking > > Jul 12 13:40:01 rtnet kernel: [15372.869741] Intel(R) PRO/1000 Network > Driver - version 7.1.9 > > Jul 12 13:40:01 rtnet kernel: [15372.869746] Copyright (c) 1999-2006 > Intel Corporation. > > Jul 12 13:40:02 rtnet kernel: [15373.136666] e1000: 0000:07:04.0: > e1000_probe: (PCI:33MHz:32-bit) 00:0e:0c:d7:d4:e4 > > Jul 12 13:40:02 rtnet kernel: [15373.282579] RTnet: registered rteth0 > > Jul 12 13:40:02 rtnet kernel: [15373.282583] e1000: rteth0: e1000_probe: > Intel(R) PRO/1000 Network Connection > > Jul 12 13:40:02 rtnet kernel: [15373.287434] initializing loopback... > > Jul 12 13:40:02 rtnet kernel: [15373.287535] RTnet: registered rtlo > > Jul 12 13:40:02 rtnet kernel: [15373.294205] RTcap: real-time capturing > interface > > Jul 12 13:40:02 rtnet kernel: [15373.319586] RTmac: init realtime media > access control > > Jul 12 13:40:02 rtnet kernel: [15373.330788] RTmac/TDMA: init time > division multiple access control mechanism > > [...] > > > > /proc/xenomai/irq (after reset; I don't have any possibility to access > logs before resetting, due to freezing issue; so most probably not very > helpfull): > > IRQ CPU0 CPU1 > > 213: 0 0 > > 216: 1028 1027 [timer] > > 217: 0 0 > > 226: 2 0 [virtual] > > Indeed, that doesn't help much (but it triggered some tiny patch to give > IRQ 213 and 217 names). > > > > > /proc/interrupts (same reset issue like above): > > CPU0 CPU1 > > 0: 959992 0 local-APIC-edge-fasteio timer, > rthal_broadcast_timer > > 1: 1296 0 IO-APIC-edge i8042 > > 2: 0 0 XT-PIC-XT cascade > > 8: 3 0 IO-APIC-edge rtc > > 12: 15084 0 IO-APIC-edge i8042 > > 14: 5148 0 IO-APIC-edge libata > > 15: 10511 0 IO-APIC-edge libata > > 18: 0 0 IO-APIC-fasteoi libata > > 20: 26586 0 IO-APIC-fasteoi uhci_hcd:usb1, > ehci_hcd:usb4, uhci_hcd:usb5 > > 21: 104 0 IO-APIC-fasteoi uhci_hcd:usb2, > uhci_hcd:usb6, HDA Intel > > 22: 0 0 IO-APIC-fasteoi ehci_hcd:usb3, > uhci_hcd:usb7 > > NMI: 0 0 > > LOC: 959830 959828 > > ERR: 0 > > MIS: 0 > > > > rtnet_start: > > #!/bin/bash > > mknod /dev/rtnet c 10 240 > > ifconfig eth0 down > > rmmod e1000 > > insmod /usr/local/rtnet/modules/rtnet.ko || exit 1 > > insmod /usr/local/rtnet/modules/rtpacket.ko || exit 1 > > insmod /usr/local/rtnet/modules/rt_e1000.ko cards=1,0,0,0 || exit 1 > > insmod /usr/local/rtnet/modules/rt_loopback.ko || exit 1 > > insmod /usr/local/rtnet/modules/rtcap.ko || exit 1 > > /usr/local/rtnet/sbin/rtifconfig rtlo up 127.0.0.1 > > ifconfig rteth0 up > > ifconfig rteth0-mac up > > ifconfig rtlo up > > insmod /usr/local/rtnet/modules/rtmac.ko > > insmod /usr/local/rtnet/modules/tdma.ko > > /usr/local/rtnet/sbin/tdmacfg rteth0 master 5000 > > /usr/local/rtnet/sbin/tdmacfg rteth0 slot 0 0 > > > > After configuring tdma cycle length (5000 ms), the strange things > happen: > > - machine isn't freezing, but you can't use keyboard > > - keyboard's leds still responding (e.g. scroll lock turns on/off led) > > If you can play with scroll lock/num lock, your _are_ using the > keyboard. This bug is weird. > I'm sorry, my mistake. LEDs are NOT working. So keyboard is also not working.
> > - last line is also called, so machine isn't freezing at all, only > keyboard doesn't works anymore > > > > So, seems to me like some IRQ problems. But I can't access /proc without > reseting to check this. > > Any chance to > - attach a second NIC and log on the box remotely or > - attach a null modem and redirect kernel console + a login session to > that link? > I will try tomorrow if I have a chance to access the system like that. If so, I will report more details about that. > > > > Xenomai 2.3.1 (SMP) on linux 2.6.20-11 (from kernel.org) with RTnet > 0.9.9 > > What I-pipe patch? It would be worth try all the latest versions (over > 2.6.20) here as well. Just to avoid hunting ghosts! > I-pipe 1.7-03. Will give the newly released xenomai a try tomorrow. > > For configs please see attached files > > Does booting with maxcpus=1 change the picture? Maybe we are hunting > some race that shows up only/more easily on SMP. > No, it doesn't. Same situation anyways. > > > >> Does the > >> lock-up also happen when you configure RTnet manually for TDMA-less > >> operation and call "rtroute solicite ..." e.g.? > > Typo: s/solicite/solicit/ > > >> > > > > How to do that? I guess first make menuconfig and configuring without > TDMA and make install, but how to use this rtroute solicite tool? No man is > available, where can I found further information? > > README.routing, rtroute --help > > And no, you can leave TDMA enabled in the config. Anyway, that test is > not of highest interest right now (I'm quite sure it will show the same > effect). > Okay, so I will test this later. > > > >> If the issue remains unexplainable, please repeat your precise current > >> setup (used kernel/Xenomai/RTnet versions, kernel config, RTnet setup). > >> > >> Jan > >> > > > > Thanks a lot in advance > > Karl > > > > > > Jan > Will give more results tomorrow. Thanks for your help until now. Karl -- von Karl Reichert "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
