If I do
strace -f /etc/init.d/udev start
while my network is down, I get
[pid 5186] stat64("/etc/libnss-ldap.conf", {st_mode=S_IFREG|
0644, st_size=9094, ...}) = 0
[pid 5186] geteuid32() = 0
[pid 5186] socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 7
[pid 5186] setsockopt(7, SOL_TCP, TCP_NODELAY, [1], 4) = 0
[pid 5186] fcntl64(7, F_GETFL) = 0x2 (flags O_RDWR)
[pid 5186] fcntl64(7, F_SETFL, O_RDWR|O_NONBLOCK) = 0
[pid 5186] connect(7, {sa_family=AF_INET,
sin_port=htons(389), sin_addr=inet_addr("10.10.7.99")}, 16)
= -1 ENETUNREACH (Network is unreachable)
[pid 5186] shutdown(7, 2 /* send and receive */) = -1
ENOTCONN (Transport endpoint is not connected)
[pid 5186] close(7) = 0
[pid 5186] time([1151237416]) = 1151237416
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] send(6, "<83>Jun 25 12:10:16 udevd[5186]:"...,
117, MSG_NOSIGNAL) = 117
[pid 5186] time([1151237416]) = 1151237416
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] send(6, "<86>Jun 25 12:10:16 udevd[5186]:"...,
118, MSG_NOSIGNAL) = 118
[pid 5186] time([1151237416]) = 1151237416
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] stat64("/etc/localtime", {st_mode=S_IFREG|0644,
st_size=56, ...}) = 0
[pid 5186] send(6, "<86>Jun 25 12:10:16 udevd[5186]:"..., 94,
MSG_NOSIGNAL) = 94
[pid 5186] rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
[pid 5186] rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
[pid 5186] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid 5186] nanosleep({8, 0}, <unfinished ...>
The line
[pid 5186] connect(7, {sa_family=AF_INET,
sin_port=htons(389), sin_addr=inet_addr("10.10.7.99")}, 16)
= -1 ENETUNREACH (Network is unreachable)
clearly means network is not setup properly to be able to
reach LDAP server, since there's no matching route.
The 'getent passwd' command also blocks, while waiting for
response from unavailable LDAP server. The old libnss-ldap
returned immediately.
That's why I think this is a bug in libnss-ldap, not in udev.
If strace from 'getent passwd' is of use, check here; they're
a bit lengthy to include here.
http://www.kiberpipa.org/~hruske/libnss-ldap-238-1
http://www.kiberpipa.org/~hruske/libnss-ldap-251-3
Regards,
Gasper Zejn
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