Strace log of dnsmaq starting with dnsmasq.leases hosted on an nfs mount

strace.log

open("/dev/urandom", O_RDONLY)          = 3
read(3, "L+M\212\37K\r9\37\267\305\25\30\2\341\261\31%\25146\262\17\210%\326\320\3658V\261\7"..., 128) = 128
read(3, "\t0\214\6\227\263P#=\373\305\237\313d\251\36V\357h\323\227u\254\\\274m\214\27\205\276\23\206"..., 48) = 48
close(3)                                = 0
open("/etc/dnsmasq.conf", O_RDONLY)     = 3
readv(3, [{"", 0}, {"# Configuration file for dnsmasq"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"sec\n\n# Replies which are not DNS"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"# servers it knows about and tri"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"elow send any host in double-cli"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"interface=\n# Or you can specify "..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"ddn-hosts=/etc/banner_add_hosts\n"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"t to supply DHCP\n# service.\n#dhc"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"le to give\n# an explicit netmask"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"vertisements and stateless DHCP "..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"y\n# order.\n\n# Always allocate th"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {" with client identifier 01:02:02"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"being treated differently when r"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {" vendorclass string includes the"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {" dhcp-options. If you use Window"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"tion changes every six hours. (R"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"DHCP options set up dnsmasq in t"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"\n\n# Send vendor-class specific o"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"ear in the parameter request lis"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {" from gPXE.\n#dhcp-match=set:gpxe"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"h timeout before first available"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"vailable\n#tftp-no-fail\n\n# Make t"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"g a set of servers.\n#dhcp-boot=/"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"del\",\n# then the MAC address, th"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {" 1.2.3.4 appear as 5.6.7.8\n#alia"..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"the domain part if missing from "..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"cords _does_not\n# occur for PTR "..., 1024}], 2) = 1024
readv(3, [{"", 0}, {"bak\n\n# Include all files in a di"..., 1024}], 2) = 92
readv(3, [{"", 0}, {"bak\n\n# Include all files in a di"..., 1024}], 2) = 0
close(3)                                = 0
open("/dev/null", O_RDWR)               = 3
open("/dev/null", O_RDWR)               = 4
open("/dev/null", O_RDWR)               = 5
close(3)                                = 0
close(4)                                = 0
close(5)                                = 0
close(6)                                = -1 EBADF (Bad file descriptor)
close(7)                                = -1 EBADF (Bad file descriptor)
close(8)                                = -1 EBADF (Bad file descriptor)
-- snip a whole lot of these --
close(999998)                           = -1 EBADF (Bad file descriptor)
close(999999)                           = -1 EBADF (Bad file descriptor)
open("/var/lib/misc/dnsmasq.leases", O_RDWR|O_CREAT|O_APPEND, 0666) = -1 EINVAL (Invalid argument)
writev(2, [{"", 0}, {"\n", 1}], 2
)      = 1
writev(2, [{"dnsmasq: ", 9}, {NULL, 0}], 2dnsmasq: ) = 9
writev(2, [{"cannot open or create lease file"..., 79}, {NULL, 0}], 2cannot open or create lease file /var/lib/misc/dnsmasq.leases: Invalid argument) = 79
writev(2, [{"", 0}, {"\n", 1}], 2
)      = 1
+++ exited with 3 +++