Re: [rtl] RTNet: /dev/rtnet: no such device
John Lloyd wrote: I am trying to run the rtifconfig script from rtnet-0.9.0 under rtai-2.2.16-ert and the script complains that no /dev/rtnet exists which is good since no device is present on my system. What is the proper mknod for this device? crw-r--r--1 root root 10, 240 Aug 31 23:54 /dev/rtnet = mknod /dev/rtnet c 10 240 Unfortunately it is not created automatically during installation. Could you please post your experience with fast data transfer to the list, as I had some problems. (See my mail to this list of Sep 21, 2000). Joachim -- Joachim Herb mailto:[EMAIL PROTECTED] -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl Your_email" | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
[rtl] Problems with RTNET
Hello, using rtnet I encounter the following problem: After a certain time I get lots of the errormessage: kfree_rtskb() skb=NULL When reload the card driver and the rtnet module the error message disappears but shows up later again. I have changed the example rt_echo_client to send an packet every 10 ms to an echo server. I use a semaphore for flow control (so the next packet is sent only if the previous was sent back by the server). The packet size is 1472 (the largest possible on my system). In the echo_recv handler I have added an rt_recvmsg() to receive the sent back message. In spite of the error message the connent of the message sent back by the echo server is correct. The rt_echo_client runs on RTAI-1.4 on top of linux-2.2.16, the network card is an 3Com 3c900 Boomerang 10Mbps Combo PCI and the used driver is 3c59x_rt_old. The server runs on a normal linux-2.2.16 (so "half-RT network"). If the server is also realtime (same card, same driver), then the same errormessages might also appear on ther server side. Once the following message appeared there, too: Too much work in interrupt state e081. Temporaily disabling functions (7f7e) What do these error messages mean and is there a problem? Thank you for your help. Bye Joachim -- Sent through GMX FreeMail - http://www.gmx.net -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl Your_email" | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
Re: [rtl] RTNET / Linux Trace Toolkit
Vasili Goutas wrote: Karim Yaghmour wrote: Hello Vasili, I've used the 22.2.4 stuff to patch over RTAI 1.4. The patch utility complains a little, but it successfully applies the patch. I haven't compiled the result, but it should work without a problem. Also, I haven't tried patching the related kernel source, but that shouldn't be a problem either. Give it a try and tell me if it works ... The RTAI-1.4 sources are no problem, but I tried to patch the kernel sources which was prepatched with the RTAI patch and get some error messages. Don't think that it will run without creating a new release of your toolkit containing a patch for linux-2.2.16 and RTAI-1.4. The result of my try to patch the kernel was: "patch -p1 patch-ltt-linux-2.2.16-with-rtai-22.2.4-000822" patching file Documentation/Configure.help ... Hello, I patched rtai-1.4 the following way: First apply the patch and then resolve the conflicts manually. Most of the reject files can be ignored: Often you find constructions like: In rtai-22.2.4-ltt: #if 0 linux code #else RTAI code #endif in the official rtai-1.4 these have changed to #ifdef CONFIG_RTHAL RTAI code #else linux code #endif The rest are only a few changes. Then if you compile you get a few errors because definitions of functions have moved from kernel files to rtai.h. I works for me. Joachim -- Joachim Herb mailto:[EMAIL PROTECTED] -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl Your_email" | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
Re: [rtl] RTNET / Linux Trace Toolkit
Joachim Herb wrote: - In your package TracePackage-0.9.3.tgz you included patches named: patch-ltt-rtai-22.2.4-000822 and patch-ltt-linux-2.2.16-with-rtai-22.2.4-000822 As there is no RTAI-22.2.4 on the RTAI website, and the version of RTAI for the linux kernel version 2.2.16 is RTAI-1.4, I think your patches are for this version? Sorry, now I have seen that it is for RTAI-1.3a. But its not too hard to get it working with 1.4. Bye Joachim -- Joachim Herb mailto:[EMAIL PROTECTED] -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl Your_email" | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
