Messages in this thread | | | Date | Wed, 3 Jul 1996 12:56:05 -0500 | From | Miguel de Icaza <> | Subject | Multicast applications hang system on 2.0, 2.0.1 |
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I am experimenting a very wierd problem with multicast applications on my Linux/i386 machine (Pentium 133, Triton chipset, adaptec 1542, depca 200 ethernet card, cirrus 5424 video card). I have searched altavista for any similar problem without success. I had the same problem with my previous machine, a Pentium at 66Mhz with the fdiv bug with the ethernet and scsi cards.
I have compiled my kernel with multicast support, with and without multicast routing (I get an IGMP line in the list of supported protocols when booting) and I have added the route to the 224.0.0.0 net with 240.0.0.0 netmask.
Now, every time I enter sd or vat (the only two multicast applications I have attempted to use), if I press the Quit button (or press control-c on the xterm to terminate the program) inmediately the machine hangs.
I attempted to strace the process without success, the last system call I see is a select and then the system just stops. I can ping the machine, but I can't type anything on the console. I also can switch VTs.
Now, my machine had been up for 20 days or so without having any problem until I tried this (I have now rebooted several times with different configurations: including multicast routing does not make any difference).
I have also noticed, when pressing control-scrollock that all of the PCs reported are either 00000000 or ffffffff on my 386 instead of the PC where the program is currently executing (with the exception of a rnunning application, this one shows the correct PC), very wierd, because any other i386 machines running around here show a regular PC on the same place.
There are no messages logged by klogd from the kernel either.
Any ideas?
Miguel.
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