getifaddrs() and CONFIG_PAGE_SIZE_16KB=y

[Nenad Kljajić]

When I compiled MIPS32 kernel with option CONFIG_PAGE_SIZE_16KB=y
 getifaddrs() fails with 'Device or resource busy'.

Here is a trace:

open("/lib/ld-uClibc.so.0", O_RDONLY)   = 3
fstat(3, {st_mode=S_IFREG|0755, st_size=28968, ...}) = 0
close(3)                                = 0
brk(0x420000)                           = 0x420000
brk(0x424000)                           = 0x424000
rt_sigaction(SIGPIPE, {0x10000000, [RT_65], SA_NOCLDSTOP}, {SIG_DFL, [RT_70
RT_72 RT_73 RT_74 RT_75 RT_78 RT_79 RT_80 RT_82 RT_84 RT_85 RT_86 RT_87
RT_88 RT_89 RT_90 RT_91 RT_93 RT_94 RT_95], SA_NOCLDSTOP}, 16) = 0
rt_sigaction(SIGINT, {0x10000000, [RT_66], 0}, {0x10000000, [RT_69 RT_70],
0x400f10 /* SA_??? */}, 16) = 0
rt_sigaction(SIGINT, {0x10000000, [RT_66], 0x400f10 /* SA_??? */},
{0x10000000, [RT_70 RT_72 RT_73 RT_74 RT_75 RT_78 RT_79 RT_80 RT_82 RT_84
RT_85 RT_86 RT_87 RT_88 RT_89 RT_90 RT_91 RT_93 RT_94 RT_95], 0}, 16) = 0
socket(PF_NETLINK, SOCK_RAW, 0)         = 3
bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(3, {sa_family=AF_NETLINK, pid=2302, groups=00000000}, [12]) = 0
time(NULL)                              = 1427616256
sendto(3, "\0\0\0\24\0\22\3\1U\27\262\0\0\0\0\0\0\0\0\0", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\0\0\3\344\0\20\0\2U\27\262\0\0\0\10\376\0\0\3\4\0\0\0\1\0\1\0I\0\0\0\0"...,
4096}], msg_controllen=0, msg_flags=MSG_TRUNC}, 0) = 4096
sendto(3, "\0\0\0\24\0\22\3\1U\27\262\1\0\0\0\0\0\0\0\0", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\0\0\3\370\0\20\0\2U\27\262\0\0\0\10\376\0\0\0\1\0\0\0\10\0\1\20C\0\0\0\0"...,
8192}], msg_controllen=0, msg_flags=0}, 0) = 7232
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\0\0\0(\0\2\0\0U\27\262\1\0\0\10\376\377\377\377\360\0\0\0\24\0\22\3\1U\27\262\1"...,
8192}], msg_controllen=0, msg_flags=0}, 0) = 40
close(3)                                = 0
write(1, "nil\t16\tDevice or resource busy\n", 31nil    16      Device or
resource busy
) = 31
rt_sigaction(SIGINT, {0x10000000, [RT_66], 0}, {0x10000000, [RT_69 RT_70],
0x400f10 /* SA_??? */}, 16) = 0
munmap(0x77e60000, 229376)              = 0
munmap(0x77e3c000, 147456)              = 0
exit_group(0)                           = ?
+++ exited with 0 +++