fsck of large volume with small memory

[sam]

hi, all
http://lists.freebsd.org/pipermail/freebsd-questions/2007-June/151686.html

my problem
# fsck /dev/aacd0s1f
** /dev/aacd0s1f (NO WRITE)
** Last Mounted on /usr
** Phase 1 - Check Blocks and Sizes
fsck_ufs: cannot alloc 2378019004 bytes for inoinfo

# cat /boot/loader.conf
kern.maxdsiz="1073741824" # 1GB
kern.dfldsiz="1073741824" # 1GB
kern.maxssiz="134217728" # 128MB

# uname -rms
FreeBSD 6.2-STABLE amd64

# limits
Resource limits (current):
  cputime          infinity secs
  filesize         infinity kB
  datasize          1048576 kB
  stacksize          131072 kB
  coredumpsize     infinity kB
  memoryuse        infinity kB
  memorylocked     infinity kB
  maxprocesses         5547
  openfiles           11095
  sbsize           infinity bytes
  vmemoryuse       infinity kB

# dmesg|less
Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-STABLE #4: Wed Sep 19 13:56:13 MSD 2007
    root at localhost:/usr/obj/usr/src/sys/STONE
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Opteron(tm) Processor 248 (2191.66-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0xf5a  Stepping = 10
  
Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
  AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow!+,3DNow!>
real memory  = 2147418112 (2047 MB)
avail memory = 2066296832 (1970 MB)
ACPI APIC Table: <A M I  OEMAPIC >

any solutions ?

/Vladimir Ermakov