Slobodan Matic wrote: > Hi all, > > I have a problem using rtnet-0.9.10 with two machines (lenovo D10 and lenovo > x61) running rtai-3.6.1. > On each machine "Testing with a single node" procedure from the RTnet wiki > instructions works without any problems. > When I try "Testing with multiple nodes" procedure, the two connected nodes > seem to establish the protocol correctly, since they return to the command > prompt after "Waiting for all slaves..." and "Stage 3: waiting for common > setup completion..." messages. However, immediately after that, the master > node fails with the periodic "TDMA: Failed to transmit sync frame!" output > errors. In addition, rtping commands do not work. > > Please, see below the rtnet.conf, console and kernel (dmesg) output for both > the master and slave nodes. > > I would appreciate any ideas on how to solve this problem. > > Thanks, > Bodan > > > +++++ master rtnet.conf > RT_DRIVER="rt_e1000" > RT_DRIVER_OPTIONS="" > IPADDR="10.0.0.1" > NETMASK="255.255.255.0" > RT_LOOPBACK="yes" > RTCAP="yes" > TDMA_MODE="master" > TDMA_SLAVES="10.0.0.3" > TDMA_CYCLE="5000" > TDMA_OFFSET="200" > > +++++ master console output > # ifconfig eth0 down > # rmmod e1000 > # insmod /usr/realtime/modules/rtai_hal.ko > # insmod /usr/realtime/modules/rtai_lxrt.ko > # insmod /usr/realtime/modules/rtai_sem.ko > # insmod /usr/realtime/modules/rtai_rtdm.ko > # mknod /dev/rtnet c 10 240 > # cd /usr/local/rtnet/sbin/ > # ./rtnet start > vnic0: unknown interface: No such device > SIOCSIFADDR: No such device > vnic0: unknown interface: No such device > SIOCSIFNETMASK: No such device > SIOCGIFADDR: No such device > SIOCSIFBROADCAST: No such device > Waiting for all slaves... > # ./rtnet stop > > +++++ master kernel output > I-pipe: Domain RTAI registered. > RTAI[hal]: <3.6.1> mounted over IPIPE-NOTHREADS 1.4-03. > RTAI[hal]: compiled with gcc version 4.1.2 20071124 (Red Hat 4.1.2-42). > RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE (INTERNAL IRQs DISPATCHED), > ISOL_CPUS_MASK: 0). > PIPELINE layers: > ffffffff881c5380 9ac15d93 RTAI 200 > ffffffff8062e940 0 Linux 100 > RTAI[malloc]: global heap size = 2097152 bytes, <BSD>. > RTAI[sched]: IMMEDIATE, MP, USER/KERNEL SPACE: <without RTAI OWN KTASKs>, > kstacks pool size = 524288 bytes. > RTAI[sched]: hard timer type/freq = APIC/20781000(Hz); default timing: > periodic; black/red timed lists. > RTAI[sched]: Linux timer freq = 1000 (Hz), CPU freq = 2992499000 hz. > RTAI[sched]: timer setup = 999 ns, resched latency = 2944 ns. > RTDM started. > rtnet: no version for "struct_module" found: kernel tainted.
Is this issue of RTAI still unfixed? That makes it hard to detect if you are accidentally building against a wrong version. However, let's assume it was the right one. > > *** RTnet 0.9.10 - built on Oct 2 2008 10:59:23 *** > > RTnet: initialising real-time networking > Intel(R) PRO/1000 Network Driver - version 7.1.9 > Copyright (c) 1999-2006 Intel Corporation. > ACPI: PCI Interrupt 0000:0f:00.0[A] -> GSI 18 (level, low) -> IRQ 18 > PCI: Setting latency timer of device 0000:0f:00.0 to 64 > e1000: 0000:0f:00.0: e1000_probe: (PCI Express:2.5Gb/s:Width x4) > 00:e0:81:b0:0d:37 > RTnet: registered rteth0 > e1000: rteth0: e1000_probe: Intel(R) PRO/1000 Network Connection > ACPI: PCI Interrupt 0000:0f:00.1[B] -> GSI 19 (level, low) -> IRQ 19 > PCI: Setting latency timer of device 0000:0f:00.1 to 64 > e1000: 0000:0f:00.1: e1000_probe: (PCI Express:2.5Gb/s:Width x4) > 00:e0:81:b0:0d:36 > RTnet: registered rteth1 > e1000: rteth1: e1000_probe: Intel(R) PRO/1000 Network Connection > initializing loopback... > RTnet: registered rtlo > RTcap: real-time capturing interface > RTcfg: init real-time configuration distribution protocol > RTmac: init realtime media access control > RTmac/TDMA: init time division multiple access control mechanism > e1000: rteth0: e1000_watchdog: NIC Link is Up 100 Mbps Half Duplex > net eth0: device_rename: sysfs_create_symlink failed (-17) udev tries to shuffle network device names around, here probably vnic0->eth0. The rtnet script is not prepared for this, you should therefore add an appropriate udev rule to prevent it. > rtlo: no IPv6 routers present > rteth0: no IPv6 routers present > rteth0-mac: no IPv6 routers present > eth0: no IPv6 routers present > TDMA: Failed to transmit sync frame! > TDMA: Failed to transmit sync frame! > TDMA: Failed to transmit sync frame! > TDMA: Failed to transmit sync frame! > TDMA: Failed to transmit sync frame! > TDMA: Failed to transmit sync frame! > TDMA: Failed to transmit sync frame! > ... > ... > ... > TDMA: Failed to transmit sync frame! > e1000: rteth0: e1000_clean_tx_irq: Detected Tx Unit Hang OK, you have obviously two rteth devices on your master board. Are you sure you connected the right one with the slave box (rteth0)? And leave RT_DRIVER_OPTIONS as it is. The default value should ensure that the driver only grabs one device. Instead of the multi-node test, you could also try the manual ping test from rtnet/README (see "Special notes" section). That will exclude any RTmac effect and focus on the core issue: packet exchange between both nodes. > Tx Queue <0> > TDH <2a> > TDT <5a> > next_to_use <5a> > next_to_clean <2a> > buffer_info[next_to_clean] > time_stamp <10005d9d3> > next_to_watch <2a> > jiffies <10005de35> > next_to_watch.status <0> > TDMA: Failed to transmit sync frame! > ... > ... > ... > TDMA: Failed to transmit sync frame! > RTmac/TDMA: unloaded > RTmac: unloaded > RTcfg: unloaded > RTcap: unloaded > removing loopback... > RTnet: unregistered rtlo > RTnet: unregistered rteth1 > ACPI: PCI interrupt for device 0000:0f:00.1 disabled > RTnet: unregistered rteth0 > ACPI: PCI interrupt for device 0000:0f:00.0 disabled > slab error in kmem_cache_destroy(): cache `rtskb_slab_pool': Can't free all > objects That's not nice to fail like this, but probably a the result of the earlier TX error in rt_e1000. > > Call Trace: > [<ffffffff80282923>] kmem_cache_destroy+0x72/0xa5 > [<ffffffff8839c69b>] :rtnet:cleanup_module+0x2b/0x3f > [<ffffffff802530d8>] sys_delete_module+0x196/0x1c5 > [<ffffffff8020bea3>] tracesys+0xdc/0xe1 > > RTnet: unloaded > > +++++ slave rtnet.conf > RT_DRIVER="rt_e1000" > RT_DRIVER_OPTIONS="" > IPADDR="10.0.0.3" > NETMASK="255.255.255.0" > RT_LOOPBACK="yes" > RTCAP="yes" > TDMA_MODE="slave" > TDMA_SLAVES="10.0.0.3" > TDMA_CYCLE="5000" > TDMA_OFFSET="200" > > +++++ slave console output > # ifconfig eth0 down > # rmmod e1000 > # insmod /usr/realtime/modules/rtai_hal.ko > # insmod /usr/realtime/modules/rtai_lxrt.ko > # insmod /usr/realtime/modules/rtai_sem.ko > # insmod /usr/realtime/modules/rtai_rtdm.ko > # mknod /dev/rtnet c 10 240 > # cd /usr/local/rtnet/sbin > # ./rtnet start > Stage 1: searching for master... > vnic0: unknown interface: No such device > SIOCSIFADDR: No such device > vnic0: unknown interface: No such device > SIOCSIFNETMASK: No such device > SIOCGIFADDR: No such device > SIOCSIFBROADCAST: No such device > > Stage 2: waiting for other slaves... > Stage 3: waiting for common setup completion... > # ./rtnet stop > > +++++ slave kernel output > I-pipe: Domain RTAI registered. > RTAI[hal]: <3.6.1> mounted over IPIPE-NOTHREADS 1.4-03. > RTAI[hal]: compiled with gcc version 4.1.2 20070626 (Red Hat 4.1.2-14). > RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE (INTERNAL IRQs DISPATCHED), > ISOL_CPUS_MASK: 0). > PIPELINE layers: > ffffffff8813b380 9ac15d93 RTAI 200 > ffffffff805b67c0 0 Linux 100 > RTAI[malloc]: global heap size = 2097152 bytes, <BSD>. > RTAI[sched]: IMMEDIATE, MP, USER/KERNEL SPACE: <without RTAI OWN KTASKs>, > kstacks pool size = 524288 bytes. > RTAI[sched]: hard timer type/freq = APIC/12469000(Hz); default timing: > periodic; linear timed lists. > RTAI[sched]: Linux timer freq = 1000 (Hz), CPU freq = 1596051000 hz. > RTAI[sched]: timer setup = 999 ns, resched latency = 2943 ns. > RTDM started. > rtnet: no version for "struct_module" found: kernel tainted. > > *** RTnet 0.9.10 - built on Oct 2 2008 13:27:23 *** > > RTnet: initialising real-time networking > Intel(R) PRO/1000 Network Driver - version 7.1.9 > Copyright (c) 1999-2006 Intel Corporation. > PCI: Setting latency timer of device 0000:00:19.0 to 64 > e1000: 0000:00:19.0: e1000_probe: (PCI Express:2.5Gb/s:Width x4) > 00:16:d3:3e:8c:b5 > RTnet: registered rteth0 > e1000: rteth0: e1000_probe: Intel(R) PRO/1000 Network Connection > initializing loopback... > RTnet: registered rtlo > RTcap: real-time capturing interface > RTcfg: init real-time configuration distribution protocol > RTmac: init realtime media access control > RTmac/TDMA: init time division multiple access control mechanism > net eth0: device_rename: sysfs_create_symlink failed (-17) Uhh, even uglier. Also here: add an udev rule to keep vnic0 as it is. > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > BUG eth0 code -11 qlen 0 > e1000: rteth0: e1000_watchdog: NIC Link is Up 100 Mbps Half Duplex > TDMA: calibrated master-to-slave packet delay: 184467440737036 us (min/max: > 9223372036854716/9223372036854717 us) Weird... > rtlo: no IPv6 routers present > rteth0-mac: no IPv6 routers present > eth0: no IPv6 routers present > rteth0: no IPv6 routers present > RTmac/TDMA: unloaded > RTmac: unloaded > RTcfg: unloaded > RTcap: unloaded > removing loopback... > RTnet: unregistered rtlo > RTnet: unregistered rteth0 > RTnet: unloaded > Jan
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________ RTnet-users mailing list RTnet-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rtnet-users
