столкнулся с непонятном зависанием при монтировании nfs. Подскажите куда копать, чтоб устранить зависание?имеем
nfs client на CentOS 5.5 Linux oradb01 2.6.18-194.el5
---------------------------------
portmapper запущен на обоих сторонахrpcinfo -p localhost
прог-ма верс прото порт
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100021 1 udp 64454 nlockmgr
100021 3 udp 64454 nlockmgr
100021 4 udp 64454 nlockmgr
100021 1 tcp 25728 nlockmgr
100021 3 tcp 25728 nlockmgr
100021 4 tcp 25728 nlockmgrnfsserver QNAP NAS
---------------------------------
rpcinfo -p 192.168.1.5
прог-ма верс прото порт
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100011 1 udp 735 rquotad
100011 2 udp 735 rquotad
100005 1 udp 743 mountd
100005 1 tcp 746 mountd
100005 2 udp 743 mountd
100005 2 tcp 746 mountd
100005 3 udp 743 mountd
100005 3 tcp 746 mountd
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100021 1 udp 32772 nlockmgr
100021 3 udp 32772 nlockmgr
100021 4 udp 32772 nlockmgr
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100021 1 tcp 37515 nlockmgr
100021 3 tcp 37515 nlockmgr
100021 4 tcp 37515 nlockmgr
100024 1 udp 763 status
100024 1 tcp 766 status
делаю трассировку монтирования, в трассировке видно что монтирование висит в нескольких системных вызовах poll
*****************************************
до перезагрузки NAS сервера монтирование вообще вылетало по таймауту, в системных вызовах были бесконечные ожидания poll,
а в системных логахportmap: server localhost not responding, timed out
RPC: failed to contact portmap (errno -5).
portmap: server localhost not responding, timed out
RPC: failed to contact portmap (errno -5).
lockd_up: makesock failed, error=-5
portmap: server localhost not responding, timed out
RPC: failed to contact portmap (errno -5).
lockd_up: no pid, 2 users??
*****************************************strace -ttTf -o /home/oracle/_out_nfs mount -t nfs 192.168.1.5:/share/Public/base2 /mnt/nfs
................................
20879 13:34:55.461295 clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x2b3ee54
37650) = 20880 <0.000079>
20879 13:34:55.461443 wait4(-1, <unfinished ...>
20880 13:34:55.461466 getgid() = 0 <0.000012>
20880 13:34:55.461516 setgid(0) = 0 <0.000009>
20880 13:34:55.461554 getuid() = 0 <0.000009>
20880 13:34:55.461591 setuid(0) = 0 <0.000013>
20880 13:34:55.461655 execve("/sbin/mount.nfs", ["/sbin/mount.nfs", "192.168.1.5:/share/Public/base2", "/mnt/nfs", "-o"
, "rw"], [/* 18 vars */]) = 0 <0.000241>
20880 13:34:55.462110 brk(0) = 0x2abd0ac01000 <0.000044>
20880 13:34:55.462210 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abcfc6a9000 <0.00001
1>
20880 13:34:55.462267 uname({sys="Linux", node="oradb01", ...}) = 0 <0.000009>20880 13:34:55.462345 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) <0.000011>
20880 13:34:55.462404 open("/etc/ld.so.cache", O_RDONLY) = 3 <0.000012>
20880 13:34:55.462455 fstat(3, {st_mode=S_IFREG|0644, st_size=43375, ...}) = 0 <0.000012>
20880 13:34:55.462527 mmap(NULL, 43375, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2abcfc6aa000 <0.000015>
20880 13:34:55.462580 close(3) = 0 <0.000009>
20880 13:34:55.462631 open("/lib64/libc.so.6", O_RDONLY) = 3 <0.000013>
20880 13:34:55.462678 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\332a\26=\0\0\0"..., 832) = 832 <0.0000
11>
20880 13:34:55.462730 fstat(3, {st_mode=S_IFREG|0755, st_size=1717800, ...}) = 0 <0.000009>
20880 13:34:55.462789 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abcfc6b5000 <0.000014>
20880 13:34:55.462858 mmap(NULL, 3498328, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2abcfc8aa000 <0.000015>
20880 13:34:55.462913 mprotect(0x2abcfc9f8000, 2093056, PROT_NONE) = 0 <0.000013>
20880 13:34:55.463022 mmap(0x2abcfcbf7000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14d000
) = 0x2abcfcbf7000 <0.000115>
20880 13:34:55.463182 mmap(0x2abcfcbfc000, 16728, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2abcfcbfc000 <0.000014>
20880 13:34:55.463249 close(3) = 0 <0.000010>
20880 13:34:55.463305 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abcfcc01000 <0.000019>
20880 13:34:55.463372 arch_prctl(ARCH_SET_FS, 0x2abcfcc016e0) = 0 <0.000015>
20880 13:34:55.463495 mprotect(0x2abcfcbf7000, 16384, PROT_READ) = 0 <0.000013>
20880 13:34:55.463556 mprotect(0x2abcfc8a8000, 4096, PROT_READ) = 0 <0.000011>
20880 13:34:55.463600 munmap(0x2abcfc6aa000, 43375) = 0 <0.000014>
20880 13:34:55.463674 getuid() = 0 <0.000009>
20880 13:34:55.463794 brk(0) = 0x2abd0ac01000 <0.000017>
20880 13:34:55.463855 brk(0x2abd0ac22000) = 0x2abd0ac22000 <0.000016>
20880 13:34:55.463919 lstat("/mnt", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 <0.000012>
20880 13:34:55.464001 lstat("/mnt/nfs", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 <0.000135>
20880 13:34:55.464192 stat("/mnt/nfs", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 <0.000011>
20880 13:34:55.464253 access("/mnt/nfs", X_OK) = 0 <0.000010>
20880 13:34:55.464311 uname({sys="Linux", node="oradb01", ...}) = 0 <0.000016>
20880 13:34:55.464422 getpid() = 20880 <0.000009>
20880 13:34:55.464470 open("/etc/resolv.conf", O_RDONLY) = 3 <0.000012>
20880 13:34:55.464523 fstat(3, {st_mode=S_IFREG|0644, st_size=19, ...}) = 0 <0.000009>
20880 13:34:55.464580 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abcfc6aa000 <0.00001
1>
20880 13:34:55.464625 read(3, "search localdomain\n", 4096) = 19 <0.000017>20880 13:34:55.464688 read(3, "", 4096) = 0 <0.000017>
20880 13:34:55.464749 close(3) = 0 <0.000010>
20880 13:34:55.464788 munmap(0x2abcfc6aa000, 4096) = 0 <0.000014>
20880 13:34:55.464871 socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3 <0.000019>
20880 13:34:55.464929 bind(3, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 <0.000050>
20880 13:34:55.465160 connect(3, {sa_family=AF_INET, sin_port=htons(111), sin_addr=inet_addr("192.168.1.5")}, 16) = 0 <0.006207>
20880 13:34:55.471469 write(3, "\200\0\0008\5\355U\30\0\0\0\0\0\0\0\2\0\1\206\240\0\0\0\2\0\0\0\3\0\0\0\0"..., 60) = 60 <0.000023>
20880 13:34:55.471562 poll([{fd=3, events=POLLIN}], 1, 20000) = 1 ([{fd=3, revents=POLLIN}]) <0.000230>
20880 13:34:55.471839 read(3, "\200\0\0\34\5\355U\30\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\10\1", 500) = 32 <0.000012>
20880 13:34:55.471902 close(3) = 0 <0.000018>
20880 13:34:55.472103 socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3 <0.000040>
20880 13:34:55.472187 bind(3, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 <0.000025>
20880 13:34:55.472253 connect(3, {sa_family=AF_INET, sin_port=htons(2049), sin_addr=inet_addr("192.168.1.5")}, 16) = 0
<0.000253>
20880 13:34:55.472551 write(3, "\200\0\0(K\336\250Y\0\0\0\0\0\0\0\2\0\1\206\243\0\0\0\3\0\0\0\0\0\0\0\0"..., 44) = 44 <0
.000015>
20880 13:34:55.472612 poll([{fd=3, events=POLLIN}], 1, 20000) = 1 ([{fd=3, revents=POLLIN}]) <0.000239>
20880 13:34:55.472898 read(3, "\200\0\0\30K\336\250Y\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 400) = 28 <0.000011>
20880 13:34:55.473106 close(3) = 0 <0.000019>
20880 13:34:55.473168 socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 3 <0.000014>
20880 13:34:55.473215 bind(3, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 <0.000024>
20880 13:34:55.473289 sendto(3, "K\24\261\371\0\0\0\0\0\0\0\2\0\1\206\240\0\0\0\2\0\0\0\3\0\0\0\0\0\0\0\0"..., 56, 0, {s
a_family=AF_INET, sin_port=htons(111), sin_addr=inet_addr("192.168.1.5")}, 16) = 56 <0.000024>
20880 13:34:55.473369 poll([{fd=3, events=POLLIN}], 1, 20000) = 1 ([{fd=3, revents=POLLIN}]) <0.000129>
20880 13:34:55.473539 recvfrom(3, "K\24\261\371\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\2\347", 8800, MSG_DONTWAIT,
{sa_family=AF_INET, sin_port=htons(111), sin_addr=inet_addr("192.168.1.5")}, [16]) = 28 <0.000011>
20880 13:34:55.473612 close(3) = 0 <0.000015>
20880 13:34:55.473680 socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 3 <0.000013>
20880 13:34:55.473725 bind(3, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 <0.000015>
20880 13:34:55.473782 sendto(3, "\36\361\251\35\0\0\0\0\0\0\0\2\0\1\206\245\0\0\0\3\0\0\0\0\0\0\0\0\0\0\0\0"..., 40, 0,
{sa_family=AF_INET, sin_port=htons(743), sin_addr=inet_addr("192.168.1.5")}, 16) = 40 <0.000021>
20880 13:34:55.473850 poll([{fd=3, events=POLLIN}], 1, 3000) = 1 ([{fd=3, revents=POLLIN}]) <0.000241>
20880 13:34:55.474133 recvfrom(3, "\36\361\251\35\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 400, MSG_DONTWAIT, {sa_famil
y=AF_INET, sin_port=htons(743), sin_addr=inet_addr("192.168.1.5")}, [16]) = 24 <0.000014>
20880 13:34:55.474206 close(3) = 0 <0.000017>
20880 13:34:55.474256 socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP) = 3 <0.000016>
20880 13:34:55.474309 bind(3, {sa_family=AF_INET, sin_port=htons(704), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 <0.000015>
20880 13:34:55.474363 uname({sys="Linux", node="oradb01", ...}) = 0 <0.000010>
20880 13:34:55.474431 geteuid() = 0 <0.000008>
20880 13:34:55.474468 getegid() = 0 <0.000012>
20880 13:34:55.474512 getgroups(0, NULL) = 7 <0.000015>
20880 13:34:55.474557 getgroups(7, [0, 1, 2, 3, 4, 6, 10]) = 7 <0.000013>
20880 13:34:55.474619 sendto(3, "}y8\243\0\0\0\0\0\0\0\2\0\1\206\245\0\0\0\3\0\0\0\1\0\0\0\1\0\0\0D"..., 132, 0, {sa_fam
ily=AF_INET, sin_port=htons(743), sin_addr=inet_addr("192.168.1.5")}, 16) = 132 <0.000020>
20880 13:34:55.474687 poll([{fd=3, events=POLLIN}], 1, 3000) = 0 (Timeout) <2.999474>
20880 13:34:58.474219 socket(PF_NETLINK, SOCK_RAW, 0) = 4 <0.000027>
20880 13:34:58.474288 bind(4, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0 <0.000017>
20880 13:34:58.474341 getsockname(4, {sa_family=AF_NETLINK, pid=20880, groups=00000000}, [12]) = 0 <0.000010>
20880 13:34:58.474400 sendto(4, "\24\0\0\0\22\0\1\3\22B\16P\0\0\0\0\0\0\0\0", 20, 0, {sa_family=AF_NETLINK, pid=0, group
s=00000000}, 12) = 20 <0.000025>
20880 13:34:58.474470 recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\370\0\0\0\
20\0\2\0\22B\16P\220Q\0\0\0\0\4\3\1\0\0\0I\0\1\0\0\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 1004 <0.00001
3>
20880 13:34:58.474542 recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3
\0\2\0\22B\16P\220Q\0\0\0\0\0\0\1\0\0\0I\0\1\0\0\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20 <0.000014>
20880 13:34:58.474615 sendto(4, "\24\0\0\0\26\0\1\3\23B\16P\0\0\0\0\0\0\0\0", 20, 0, {sa_family=AF_NETLINK, pid=0, group
s=00000000}, 12) = 20 <0.000026>
20880 13:34:58.474688 recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"<\0\0\0\24\
0\2\0\23B\16P\220Q\0\0\2\10\200\376\1\0\0\0\10\0\1\0\177\0\0\1"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 196 <0.
000020>
20880 13:34:58.474762 recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"@\0\0\0\24\
0\2\0\23B\16P\220Q\0\0\n\200\200\376\1\0\0\0\24\0\1\0\0\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 128 <0.0
00012>
20880 13:34:58.474827 recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3
\0\2\0\23B\16P\220Q\0\0\0\0\0\0\1\0\0\0\24\0\1\0\0\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20 <0.000011>
20880 13:34:58.474898 close(4) = 0 <0.000013>
20880 13:34:58.475107 sendto(3, "}y8\243\0\0\0\0\0\0\0\2\0\1\206\245\0\0\0\3\0\0\0\1\0\0\0\1\0\0\0D"..., 132, 0, {sa_fam
ily=AF_INET, sin_port=htons(743), sin_addr=inet_addr("192.168.1.5")}, 16) = 132 <0.000019>
20880 13:34:58.475184 poll([{fd=3, events=POLLIN}], 1, 3000) = 0 (Timeout) <2.999968> <------------ висим
.............................................
20880 13:35:01.476198 poll([{fd=3, events=POLLIN}], 1, 3000) = 0 (Timeout) <2.999931> <------------ висим
.............................................
20880 13:35:04.477128 poll([{fd=3, events=POLLIN}], 1, 3000) = 0 (Timeout) <2.999997> <------------ висим
.............................................
20880 13:35:07.478168 poll([{fd=3, events=POLLIN}], 1, 3000) = 0 (Timeout) <2.999946> <------------ висим
.............................................
20880 13:35:10.479119 poll([{fd=3, events=POLLIN}], 1, 3000) = 0 (Timeout) <2.999982> <------------ висим
.............................................
20880 13:35:13.480092 poll([{fd=3, events=POLLIN}], 1, 3000) = 1 ([{fd=3, revents=POLLIN}]) <1.993618> <------------ висим
20880 13:35:15.473780 recvfrom(3, "}y8\243\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\24"..., 1024, MSG_DONTWAIT, {sa_family=AF_INET, sin_port=htons(743), sin_addr=inet_addr("192.168.1.5")}, [16]) = 76 <0.000023>
20880 13:35:15.474046 close(3) = 0 <0.000027>
20880 13:35:15.474112 uname({sys="Linux", node="oradb01", ...}) = 0 <0.000009>
20880 13:35:15.474194 mount("192.168.1.5:/share/Public/base2", "/mnt/nfs", "nfs", 0, "\6") = 0 <0.019512>
20880 13:35:15.493790 lstat("/etc/mtab", {st_mode=S_IFREG|0644, st_size=283, ...}) = 0 <0.000154>
20880 13:35:15.494101 open("/etc/mtab", O_RDWR|O_CREAT, 0644) = 3 <0.000026>
20880 13:35:15.494184 close(3) = 0 <0.000011>
20880 13:35:15.494310 rt_sigaction(SIGHUP, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000010>
20880 13:35:15.494388 rt_sigaction(SIGINT, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000012>
20880 13:35:15.494522 rt_sigaction(SIGQUIT, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000013>
20880 13:35:15.494587 rt_sigaction(SIGILL, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000010>
20880 13:35:15.494666 rt_sigaction(SIGTRAP, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000011>
20880 13:35:15.494790 rt_sigaction(SIGABRT, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.494842 rt_sigaction(SIGBUS, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000152>
20880 13:35:15.495034 rt_sigaction(SIGFPE, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495092 rt_sigaction(SIGKILL, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = -1 EINVAL (Invalid argument) <0.000014>
20880 13:35:15.495174 rt_sigaction(SIGUSR1, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495224 rt_sigaction(SIGSEGV, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495272 rt_sigaction(SIGUSR2, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495320 rt_sigaction(SIGPIPE, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495368 rt_sigaction(SIGALRM, {0x2abcfc481d30, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495424 rt_sigaction(SIGTERM, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <.000009>
20880 13:35:15.495092 rt_sigaction(SIGKILL, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = -1 EINVAL (Invalid argument) <0.000014>
20880 13:35:15.495174 rt_sigaction(SIGUSR1, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495224 rt_sigaction(SIGSEGV, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495272 rt_sigaction(SIGUSR2, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495320 rt_sigaction(SIGPIPE, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495368 rt_sigaction(SIGALRM, {0x2abcfc481d30, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495424 rt_sigaction(SIGTERM, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000013>
20880 13:35:15.495489 rt_sigaction(SIGSTKFLT, {0x2abcfc4824d0, ~[RTMIN RT_1], SA_RESTORER, 0x2abcfc8da2d0}, NULL, 8) = 0 <0.000009>
20880 13:35:15.495542 open("/etc/mtab~20880", O_WRONLY|O_CREAT, 0) = 3 <0.000035>
20880 13:35:15.495614 close(3) = 0 <0.000010>
20880 13:35:15.495660 link("/etc/mtab~20880", "/etc/mtab~") = 0 <0.000019>
20880 13:35:15.495716 open("/etc/mtab~", O_WRONLY) = 3 <0.000012>
20880 13:35:15.495771 fcntl(3, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=0}) = 0 <0.000017>
20880 13:35:15.495839 unlink("/etc/mtab~20880") = 0 <0.000172>
20880 13:35:15.496052 open("/etc/mtab", O_RDWR|O_CREAT|O_APPEND, 0666) = 4 <0.000012>
20880 13:35:15.496108 fstat(4, {st_mode=S_IFREG|0644, st_size=283, ...}) = 0 <0.000009>
20880 13:35:15.496164 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2abcfc6aa000 <0.000011>
20880 13:35:15.496209 fstat(4, {st_mode=S_IFREG|0644, st_size=283, ...}) = 0 <0.000013>
20880 13:35:15.496274 lseek(4, 0, SEEK_SET) = 0 <0.000018>
20880 13:35:15.496329 read(4, "/dev/cciss/c0d0p1 / ext3 rw 0 0\n"..., 283) = 283 <0.000018>
20880 13:35:15.496389 write(4, "192.168.1.5:/share/Public/base2"..., 71) = 71 <0.000016>
20880 13:35:15.496440 close(4) = 0 <0.000010>
20880 13:35:15.496480 munmap(0x2abcfc6aa000, 4096) = 0 <0.000016>
20880 13:35:15.496527 close(3) = 0 <0.000015>
20880 13:35:15.496580 unlink("/etc/mtab~") = 0 <0.000034>
20880 13:35:15.496662 exit_group(0) = ?
20879 13:35:15.496854 <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 20880 <20.035387>
20879 13:35:15.497038 --- SIGCHLD (Child exited) @ 0 (0) ---
20879 13:35:15.497126 exit_group(0) = ?
Что у вас с DNS-ом? Какие настройки резолвера на сервере и на клиентах?
Точно нет проблем с разрешением имен?