Karl Reichert wrote: >> Karl Reichert wrote: >>>>> Karl Reichert wrote: >>>>>> Hello, >>>>>> >>>>>> I'm trying to use RTnet 0.9.9 on Xenomai 2.3.1 with an Intel >> PRO/1000 >>>>> NIC. I did everything as described (mknod, ifconfig down, rmmod, right >>>>> module in rtnet.conf) but when I start RTnet via 'rtnet start', I get >>>> some >>>>> errors: >>>>>> stdout: Waiting for all slaves... >>>>>> >>>>>> stderr: /usr/local/rtnet/sbin/rtnet: 343: let: not found >>>>> Hmm, strange. Already tried to start with "rtnet -v" for more >> verbosity? >>>> Strange, tried it again, now it said: >>>> stderr: >>>> /usr/local/rtnet/sbin/rtnet: 1: let: not found >>>> >>>> stdout: >>>> Turning on verbose mode >>>> /usr/local/rtnet/sbin/rtifconfig rtlo up 127.0.0.1 >>>> /usr/local/rtnet/sbin/rtcfg rteth0 server >>>> /usr/local/rtnet/sbin/rtifconfig rteth0 up 10.0.0.1 >>>> /usr/local/rtnet/sbin/tdmacfg rteth0 master 3000 >>>> /usr/local/rtnet/sbin/tdmacfg rteth0 slot 0 0 >>>> /usr/local/rtnet/sbin/rtcfg rteth0 add 10.0.0.2 -stage1 - >>>> Waiting for all slaves.../usr/local/rtnet/sbin/rtcfg rteth0 wait >>>> >>>>>> I also get periodic output: e1000: rteth0: e1000_clean_tx_irq: >>>> Detected >>>>> Tx Unit Hang >>>>> >>>>> What does /proc/xenomai/irq tell you? Any changes /wrt to the >> rt_e1000? >>>> It says: >>>> IRQ CPU0 CPU1 >>>> 20: 46 0 rteth0 >>>> 213: 0 0 >>>> 216: 7931 45 [timer] >>>> 217: 0 0 >>>> 226: 8 0 [virtual] >>>> >>>>>> What's the problem here? I'm using bash and let is available. >>>>>> >>>>>> Thanks in advance >>>>>> >>>>>> Karl >>>>>> >>>>> Jan >>>>> >>>> Karl >>> I found the solution now: Ubuntu seems to use a different shell when >> executing shell-scripts, not the bash. So, if you change the first line from >> #!/bin/sh to #!/bin/bash, no more errors occur. >>> Only this one if left: >>> e1000: rteth0: e1000_clean_tx_irq: Detected Tx Unit Hang >>> >>> Any ideas to that? Could the reason be, that I don't have my card >> connected to any cable nor network?! >> Two patches in one: the first one disables TX hang detection (Mathias, why >> do we >> need the watchdog at all? For link startup?). The second one should make >> the >> rtnet script bash-independent, please verify. >> >> Does it work otherwise now? >> >> Jan >> >> >> Index: tools/rtnet.in >> =================================================================== >> --- tools/rtnet.in (Revision 1118) >> +++ tools/rtnet.in (Arbeitskopie) >> @@ -139,7 +139,7 @@ start_master() { >> for SLAVE in $TDMA_SLAVES; do >> echo "\$TDMACFG rteth0 slot 0 $OFFSET;ifconfig vnic0 up >> \$IPADDR \$NETMASK_OPT" | \ >> $RTCFG rteth0 add $SLAVE -stage1 - $STAGE_2_OPT >> - let OFFSET=$OFFSET+$TDMA_OFFSET >> + OFFSET=$(($OFFSET+$TDMA_OFFSET)) >> done >> else >> # Get setup from TDMA_CONFIG file: >> Index: drivers/e1000/e1000_main.c >> =================================================================== >> --- drivers/e1000/e1000_main.c (Revision 1118) >> +++ drivers/e1000/e1000_main.c (Arbeitskopie) >> @@ -2330,9 +2330,6 @@ e1000_watchdog(unsigned long data) >> /* Cause software interrupt to ensure rx ring is cleaned */ >> E1000_WRITE_REG(&adapter->hw, ICS, E1000_ICS_RXDMT0); >> >> - /* Force detection of hung controller every watchdog period */ >> - adapter->detect_tx_hung = TRUE; >> - >> /* With 82571 controllers, LAA may be overwritten due to controller >> * reset from the other port. Set the appropriate LAA in RAR[0] */ >> if (adapter->hw.mac_type == e1000_82571 && adapter->hw.laa_is_present) >> >> > Yes, this helps, thanks a lot :) >
Hmm, /me is not really convinced about the e1000 patch (the other part is now in SVN), it may just paper over a real issue. Once time permits I would like to understand what is happening with the NIC driver here. How often did you get that warning and during which mode of operation (or permanently)? Jan
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