On Sun, Aug 24, 2014 at 04:38:51PM +0200, Zubin Mithra wrote: > Hi Dmitry, > > > Actually, it is quite linux specific: SOCK_DIAG_BY_FAMILY needs tcp_diag > > kernel module to handle IPPROTO_TCP, and udp_diag - for IPPROTO_UDP > > sockets. > > I’m not sure I understand the problem here — could you tell me which kernel > version you had used so that I could try compiling that kernel here at my end?
The problem, if you call this situation a problem, is that SOCK_DIAG_BY_FAMILY is usually implemented by tcp_diag and udp_diag kernel modules, and when these modules are not loaded and automatic loading is not enabled (as it happened in my case), strace -yy feature won't work. -- ldv
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