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.
*** 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)
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
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
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)
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)
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
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