Hi Moshe killing tcpdump with -9 prevents it from releasing the queue correctly, thus you are no more able to open it. This is an expected behaviour in zero-copy mode.
Alfredo > On 18 Jul 2016, at 13:13, Moshe Danielli <[email protected]> wrote: > > > Hello Guys, > > I've been experiencing a problem where I execute the following sequence of > commands: > > 1. nohup tcpdump -i zc:99@0 & > 2. kill -9 tcpdump_pid > 3. tcpdump -i zc:99@0 -> this command yields the following error: "tcpdump: > zc:99@0: No such device exists" > > It's important to note that, killing tcpdump, without using the KILL signal > (hitting CTRL-C for example or just using: "kill tcpdump_pid") will let me > reuse that cluster node. > > I'm curious as to why that's the current behavior. > > Thanks in advance > > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
