FastCGI on Sockets

[somebody nobody]

now i get this error:

...sendfilev() failed (124: Address family not supported by protocol family)
while sending request to upstream, client...


truss shows little information about library and the path where the
spawn-fcgi is:

xstat(2, "/lib/libsocket.so.1", 0x08047370)     = 0
resolvepath("/lib/libsocket.so.1", "/lib/libsocket.so.1", 1023) = 19
open("/lib/libsocket.so.1", O_RDONLY)

xstat(2, "/lib/libc.so.1", 0x08047370)          = 0
resolvepath("/lib/libc.so.1", "/lib/libc.so.1", 1023) = 14
open("/lib/libc.so.1", O_RDONLY)

open("/var/ld/ld.config", O_RDONLY)             Err#2 ENOENT
sysconfig(_CONFIG_PAGESIZE)                     = 4096
xstat(2, "/lib/libresolv.so.2", 0x08047370)     = 0
resolvepath("/lib/libresolv.so.2", "/lib/libresolv.so.2", 1023) = 19
open("/lib/libresolv.so.2", O_RDONLY)
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