A Dijous 03 Maig 2007 20:44, Jan Kiszka va escriure: > [Oops, almost overseen.] > > Leopold Palomo-Avellaneda wrote: > > Hi, > > > > some days ago I was sending some messages about the examples of rtnet > > using rtai. I compiled and installing rtnet with some problems but I > > think that is working. > > > > I modified the init script for have a notdma option because it's the only > > configuration that I need. I never couldn't run the examples of rtai or > > generic till yesterday. I modified the examples, created a new examples, > > and never worked. I have been more or less stopped in this some days. > > > > Yesterday, I run in a desperately moment the examples of rtai and generic > > and wou!!! it worked!!! However I was I bit worried because I thought > > that I have been losing my time and the rtnet list with my stupids > > questions. Also, I modified the example to send 100 messages and it ran. > > > > Today I tried to run the examples and again it failed. I tried to make a > > rtnet stop and rtnet notdma again but it failed to unload the module > > rtipv4. So, I needed to reboot the box. After reboot it, I could run > > again the examples, but only one time. The next time it failed again, and > > now I check the /var/log/kern messages and I found this: > > > > > > May 3 10:45:03 ulises kernel: LXRT CHANGED MODE (SYSCALL), PID = 4304, > > SYSCALL = 4. > > May 3 10:48:30 ulises kernel: Assertion > > failed! /root/rtnet-0.9.8/stack/ipv4/udp.c:rt_udp_recvmsg:398 skb != NULL > > May 3 10:48:30 ulises kernel: LXRT releases PID 4304 (ID: simpleserver). > > May 3 10:48:50 ulises kernel: Assertion > > failed! /root/rtnet-0.9.8/stack/ipv4/udp.c:rt_udp_recvmsg:398 skb != NULL > > May 3 10:48:50 ulises kernel: LXRT releases PID 4307 (ID: simpleserver). > > Hmm. What RTAI version? I vaguely recall some bug in RTAI's RTDM layer > (3.4?) that triggered similar messages. And it would also explain > indeterministic behaviour your observed (internal event signalling was > broken).
rtai 3.4. ummmm ugly. Also I found that I can repeat it if the program fails, or I kill it without finish the rt commands.... > > Also, I cannot made a rtnet stop because the script is stopped removing > > the rtipv4 module. > > > > So, this is normal? It's something that I have done wrong? how can I know > > what is happening? > > Core assertion failures are never normal and indicate bugs underneath. > Unless you are running an older RTAI version, we would have to dig deeper. Ok, next week I can prepare some test and example to send you. Regards, Leo -- -- Linux User 152692 PGP: 0xF944807E Catalonia
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