unable to start nfsd nfssvc "Address already in use" 7490

looks like a bug to me and not related to alredy running nfsd etc; strace -f -x -otmp-nfsd.trace rpc.nfsd

1929 open("-proc-fs-nfsd-threads", OWRONLYOLARGEFILE) = 4 1929 write(4, "8-n", 2) = -1 EADDRINUSE (Address already in use)

which this error is then logged via syslog (this what causes the nfssvc error i posted previously) -- if you are unfamiliar with this, it is saying that nfsd opened the fileproc-fs-nfsd-threads succesffully but then the next call to write 2 bytes to it causes the EADDRINUSE

anyone got any suggestions? full strace output below

1929 execve("-usr-sbin-rpc.nfsd", "rpc.nfsd", "8", -* 23 vars *-) = 0 1929 uname({sys="Linux", node="doc", ...}) = 0 1929 brk(0) = 0x804b000 1929 access("-etc-ld.so.preload", ROK) = -1 ENOENT (No such file or directory) 1929 open("-etc-ld.so.cache", ORDONLY) = 3 1929 fstat64(3, {stmode=SIFREG0644, stsize=40336, ...}) = 0 1929 mmap2(NULL, 40336, PROTREAD, MAPPRIVATE, 3, 0) = 0xb7faa000 1929 close(3) = 0 1929 open("-lib-libc.so.6", ORDONLY) = 3 1929 read(3, "-x7f-x45-x4c-x46-x01-x01-x01-x00-x00-x00-x00-x00-x00-x00"..., 512) = 512 1929 fstat64(3, {stmode=SIFREG0755, stsize=1423161, ...}) = 0 1929 mmap2(0x41686000, 1137756, PROTREADPROTEXEC, MAPPRIVATEMAPDENYWRITE, 3, 0) = 0x41686000 1929 mmap2(0x41796000, 16384, PROTREADPROTWRITE, MAPPRIVATEMAPFIXEDMAPDENYWRITE, 3, 0x110) = 0x41796000 1929 mmap2(0x4179a000, 7260, PROTREADPROTWRITE, MAPPRIVATEMAPFIXEDMAPANONYMOUS, -1, 0) = 0x4179a000 1929 close(3) = 0 1929 mmap2(NULL, 4096, PROTREADPROTWRITE, MAPPRIVATEMAPANONYMOUS, -1, 0) = 0xb7fa9000 1929 mprotect(0x41796000, 8192, PROTREAD) = 0 1929 mprotect(0x41682000, 4096, PROTREAD) = 0 limit:1048575, seg32bit:1, contents:0, readexeconly:0, limitinpages:1, segnotpresent:0, useable:1}) = 0 1929 munmap(0xb7faa000, 40336) = 0 1929 brk(0) = 0x804b000 1929 brk(0x806c000) = 0x806c000 1929 open("-etc-nsswitch.conf", ORDONLY) = 3 1929 fstat64(3, {stmode=SIFREG0644, stsize=1686, ...}) = 0 1929 mmap2(NULL, 4096, PROTREADPROTWRITE, MAPPRIVATEMAPANONYMOUS, -1, 0) = 0xb7fb3000 1929 read(3, "#-n#etc-nsswitch.conf-n#-n# An ex"..., 4096) = 1686 1929 read(3, , 4096) = 0 1929 close(3) = 0 1929 munmap(0xb7fb3000, 4096) = 0 1929 open("-etc-ld.so.cache", ORDONLY) = 3 1929 fstat64(3, {stmode=SIFREG0644, stsize=40336, ...}) = 0 1929 mmap2(NULL, 40336, PROTREAD, MAPPRIVATE, 3, 0) = 0xb7faa000 1929 close(3) = 0 1929 open("-lib-libnssfiles.so.2", ORDONLY) = 3 1929 read(3, "-x7f-x45-x4c-x46-x01-x01-x01-x00-x00-x00-x00-x00-x00-x00"..., 512) = 512 1929 fstat64(3, {stmode=SIFREG0755, stsize=43568, ...}) = 0 1929 mmap2(NULL, 37512, PROTREADPROTEXEC, MAPPRIVATEMAPDENYWRITE, 3, 0) = 0xb7f9f000 1929 mmap2(0xb7fa7000, 8192, PROTREADPROTWRITE, MAPPRIVATEMAPFIXEDMAPDENYWRITE, 3, 0x7) = 0xb7fa7000 1929 close(3) = 0 1929 mprotect(0xb7fa7000, 4096, PROTREAD) = 0 1929 munmap(0xb7faa000, 40336) = 0 1929 open("-etc-services", ORDONLY) = 3 1929 fcntl64(3, FGETFD) = 0 1929 fcntl64(3, FSETFD, FDCLOEXEC) = 0 1929 fstat64(3, {stmode=SIFREG0644, stsize=19936, ...}) = 0 1929 mmap2(NULL, 4096, PROTREADPROTWRITE, MAPPRIVATEMAPANONYMOUS, -1, 0) = 0xb7fb3000 1929 read(3, "#etc-services:-n# $Id: services"..., 4096) = 4096 1929 read(3, "TBIOS Name Service-nnetbios-ns-t13"..., 4096) = 4096 1929 read(3, "rcs-t-t994-udp-npop3s-t-t995-tcp-t-t-t-t#"..., 4096) = 4096 1929 close(3) = 0 1929 munmap(0xb7fb3000, 4096) = 0 1929 chdir("-var-lib-nfs") = 0 1929 open("-dev-null", ORDWROLARGEFILE) = 3 1929 dup2(3, 0) = 0 1929 dup2(3, 1) = 1 1929 dup2(3, 2) = 2 1929 open("-proc-self-fd", ORDONLYONONBLOCKOLARGEFILEODIRECTORY) = 4 1929 fstat64(4, {stmode=SIFDIR0500, stsize=0, ...}) = 0 1929 fcntl64(4, FSETFD, FDCLOEXEC) = 0 1929 getdents64(4,* 7 entries *-, 1024) = 168 1929 getdents64(4,* 0 entries *-, 1024) = 0 1929 close(4) = 0 1929 open("-proc-fs-nfsd-versions", OWRONLYOLARGEFILE) = 4 1929 write(4, "+2 +3 +4n", 10) = 10 1929 close(4) = 0 1929 open("-proc-fs-nfsd-portlist", ORDONLYOLARGEFILE) = -1 ENOENT (No such file or directory) 1929 open("-proc-fs-nfsd-threads", OWRONLYOLARGEFILE) = 4 1929 write(4, "8-n", 2) = -1 EADDRINUSE (Address already in use) 1929 close(4) = 0 1929 time(1163703611) = 1163703611 1929 open("-etc-localtime", ORDONLY) = 4 1929 fstat64(4, {stmode=SIFREG0644, stsize=1323, ...}) = 0 1929 fstat64(4, {stmode=SIFREG0644, stsize=1323, ...}) = 0 1929 mmap2(NULL, 4096, PROTREADPROTWRITE, MAPPRIVATEMAPANONYMOUS, -1, 0) = 0xb7fb3000 1929 read(4, "-x54-x5a-x68 plus 1-x66-x00-x00-x00-x00-x00-x00-x00-x00-x00-x00"..., 4096) = 1323 1929 close(4) = 0 1929 munmap(0xb7fb3000, 4096) = 0 1929 stat64("-etc-localtime", {stmode=SIFREG0644, stsize=1323, ...}) = 0 1929 stat64("-etc-localtime", {stmode=SIFREG0644, stsize=1323, ...}) = 0 1929 stat64("-etc-localtime", {stmode=SIFREG0644, stsize=1323, ...}) = 0 1929 getpid() = 1929 1929 socket(PFUNIX, SOCKDGRAM, 0) = 4 1929 fcntl64(4, FSETFD, FDCLOEXEC) = 0 1929 connect(4, {safamily=AFUNIX, path="-dev-log"}, 16) = 0 MSGNOSIGNAL) = 62 1929 close(4) = 0 1929 exitgroup(1) = ?