gdb-backtrace of client (pushing): #0 0x00ba2402 in __kernel_vsyscall () #1 0x0086da1d in ___newselect_nocancel () from /lib/tls/libc.so.6 #2 0x08063c45 in writefd_unbuffered (fd=3, buf=0xbf9123e4 "", len=4) at io.c:1054 #3 0x08064988 in write_int (f=-514, x=0) at io.c:1213 #4 0x08058d67 in matched (f=3, s=0x9793640, buf=0x9794508, offset=17620, i=-1) at match.c:117 #5 0x08059683 in match_sums (f=3, s=0x9793640, buf=0x9794508, len=17620) at match.c:348 #6 0x08051584 in send_files (flist=0x9790de0, f_out=3, f_in=3) at sender.c:344 #7 0x0805771d in client_run (f_in=3, f_out=3, pid=-1, argc=1, argv=0x97901a0) at main.c:778 #8 0x0806ef76 in start_socket_client (host=0x9790d08 "db1.yoolie.de", path=0x9790ce9 "db1.yoolie.de/current", argc=1, argv=0xfffffdfe) at clientserver.c:102 #9 0x08058774 in main (argc=2, argv=0x97901a0) at main.c:918 strace says hangs in syscall: select(4, NULL, [3], NULL, {60, 0} gdb-backtrace of server (receiving): #0 0x00de2402 in ?? () #1 0x0044a1ed in ___newselect_nocancel () from /lib/libc.so.6 #2 0x08063c45 in writefd_unbuffered (fd=0, buf=0xbfe3f4dc " #3 0x080640da in mplex_write (code=Variable "code" is not available. ) at io.c:1137 #4 0x0806417b in io_flush (flush_it_all=-514) at io.c:1158 #5 0x080646ee in writefd (fd=2, buf=0xbfe42722 "\022 at io.c:1195 #6 0x0804d9a2 in recv_generator (fname=0xbfe4279c "var/lib/rpm/Packages", file=0x2, ndx=1613554, itemizing=1, maybe_PERMS_REPORT=1, code=FLOG, f_out=0) at generator.c:499 #7 0x0804e1a1 in generate_files (f_out=0, flist=0x8263e68, local_name=Variable "local_name" is not available. ) at generator.c:1212 #8 0x08056c81 in do_recv (f_in=0, f_out=0, flist=0x8263e68, local_name=0x0) at main.c:607 #9 0x08057164 in start_server (f_in=0, f_out=0, argc=1, argv=Variable "argv" is not available. ) at main.c:691 #10 0x0806fa83 in start_daemon (f_in=0, f_out=0) at clientserver.c:523 #11 0x0807006f in daemon_main () at clientserver.c:636 #12 0x08057ff9 in main (argc=0, argv=0x0) at main.c:1154 strace says hangs in syscall: select(5, [4], [0], NULL, {60, 0}