delay in change password

[Grishin Dmitry]

i have a problem whith change password
when a print in console 
	passwd dima
the system sleep some minutes(nearly 4-5 minutes) and after offer put password

when i input 
	truss passwd dima
then i see that largest time (nearly 10-15 second)  spend to gettimeofday(0xbfbff3a8,0x0) 
and block 
	gettimeofday(0xbfbff3a8,0x0)                     = 0 (0x0)
	select(0x5,0xbfbff418,0x0,0x0,0xbfbff3a0)        = 0 (0x0)
	sendto(0x4,0x80549f8,0x38,0x0,0x8054808,0x10)    = 56 (0x38)
	gettimeofday(0xbfbff3a8,0x0)                     = 0 (0x0)
	select(0x5,0xbfbff418,0x0,0x0,0xbfbff3a0)        = 0 (0x0)
	sendto(0x4,0x80549f8,0x38,0x0,0x8054808,0x10)    = 56 (0x38)
	gettimeofday(0xbfbff3a8,0x0)                     = 0 (0x0)
repeat about 10 times

help me please