This buffer refers to the kernel which I boot straight from jtag but not 
u-boot.

Below I attach whole buffer printout:

=> 0x20f0c4 200
0020f0c4: 3c353e5b 20202020 302e3030 30303030    <5>[    0.000000
0020f0d4: 5d204c69 6e757820 76657273 696f6e20    ] Linux version 
0020f0e4: 322e362e 32312d72 63362028 726f6f74    2.6.21-rc6 (root
0020f0f4: 40706335 32313529 20286763 63207665    @pc5215) (gcc ve
0020f104: 7273696f 6e20342e 302e3229 20233136    rsion 4.0.2) #16
0020f114: 204d6f6e 20417567 20323720 31323a33     Mon Aug 27 12:3
0020f124: 373a3038 20434553 54203230 30370a3c    7:08 CEST 2007.<
0020f134: 363e5b20 20202030 2e303030 3030305d    6>[    0.000000]
0020f144: 2058696c 696e7820 4d4c3430 33205265     Xilinx ML403 Re
0020f154: 66657265 6e636520 53797374 656d2028    ference System (
0020f164: 56697274 65782d34 20465829 0a3c373e    Virtex-4 FX).<7>
0020f174: 5b202020 20302e30 30303030 305d2045    [    0.000000] E
0020f184: 6e746572 696e6720 6164645f 61637469    ntering add_acti
0020f194: 76655f72 616e6765 28302c20 302c2038    ve_range(0, 0, 8
0020f1a4: 31393129 20302065 6e747269 6573206f    191) 0 entries o
0020f1b4: 66203235 36207573 65640a3c 343e5b20    f 256 used.<4>[ 
0020f1c4: 20202030 2e303030 3030305d 205a6f6e       0.000000] Zon
0020f1d4: 65205046 4e207261 6e676573 3a0a3c34    e PFN ranges:.<4
0020f1e4: 3e5b2020 2020302e 30303030 30305d20    >[    0.000000] 
0020f1f4: 2020444d 41202020 20202020 20202020      DMA 
0020f204: 20203020 2d3e2020 20202038 3139310a      0 ->     8191.
0020f214: 3c343e5b 20202020 302e3030 30303030    <4>[    0.000000
0020f224: 5d202020 4e6f726d 616c2020 20202020    ]   Normal      
0020f234: 20383139 31202d3e 20202020 20383139     8191 ->     819
0020f244: 310a3c34 3e5b2020 2020302e 30303030    1.<4>[    0.0000
0020f254: 30305d20 6561726c 795f6e6f 64655f6d    00] early_node_m
0020f264: 61705b31 5d206163 74697665 2050464e    ap[1] active PFN
0020f274: 2072616e 6765730a 3c343e5b 20202020     ranges.<4>[    
0020f284: 302e3030 30303030 5d202020 2020303a    0.000000]     0:
0020f294: 20202020 20202020 30202d3e 20202020            0 ->    
0020f2a4: 20383139 310a3c37 3e5b2020 2020302e     8191.<7>[    0.
0020f2b4: 30303030 30305d20 4f6e206e 6f646520    000000] On node 
0020f2c4: 3020746f 74616c70 61676573 3a203831    0 totalpages: 81
0020f2d4: 39310a3c 373e5b20 20202030 2e303030    91.<7>[    0.000
0020f2e4: 3030305d 20202044 4d41207a 6f6e653a    000]   DMA zone:
0020f2f4: 20363320 70616765 73207573 65642066     63 pages used f
0020f304: 6f72206d 656d6d61 700a3c37 3e5b2020    or memmap.<7>[  
0020f314: 2020302e 30303030 30305d20 2020444d      0.000000]   DM
0020f324: 41207a6f 6e653a20 30207061 67657320    A zone: 0 pages 
0020f334: 72657365 72766564 0a3c373e 5b202020    reserved.<7>[   
0020f344: 20302e30 30303030 305d2020 20444d41     0.000000]   DMA
0020f354: 207a6f6e 653a2038 31323820 70616765     zone: 8128 page
0020f364: 732c204c 49464f20 62617463 683a300a    s, LIFO batch:0.
0020f374: 3c373e5b 20202020 302e3030 30303030    <7>[    0.000000
0020f384: 5d202020 4e6f726d 616c207a 6f6e653a    ]   Normal zone:
0020f394: 20302070 61676573 20757365 6420666f     0 pages used fo
0020f3a4: 72206d65 6d6d6170 0a3c343e 5b202020    r memmap.<4>[   
0020f3b4: 20302e30 30303030 305d2042 75696c74     0.000000] Built
0020f3c4: 2031207a 6f6e656c 69737473 2e202054     1 zonelists.  T
0020f3d4: 6f74616c 20706167 65733a20 38313238    otal pages: 8128
0020f3e4: 0a3c353e 5b202020 20302e30 30303030    .<5>[    0.00000
0020f3f4: 305d204b 65726e65 6c20636f 6d6d616e    0] Kernel comman
0020f404: 64206c69 6e653a20 636f6e73 6f6c653d    d line: console=
0020f414: 74747955 4c302c39 36303020 726f6f74    ttyUL0,9600 root
0020f424: 3d2f6465 762f6e66 73207277 206e6673    =/dev/nfs rw nfs
0020f434: 726f6f74 3d313239 2e313239 2e313434    root=129.129.144
0020f444: 2e313133 3a2f6f70 742f656c 646b3431    .113:/opt/eldk41
0020f454: 2f707063 5f347878 2c746370 20206970    /ppc_4xx,tcp  ip
0020f464: 3d3a3a3a 3a766972 74657834 2d6d6972    =::::virtex4-mir
0020f474: 656b3a65 7468303a 64686370 2070616e    ek:eth0:dhcp pan
0020f484: 69633d31 0a3c363e 5b202020 20302e30    ic=1.<6>[    0.0
0020f494: 30303030 305d2058 696c696e 7820494e    00000] Xilinx IN
0020f4a4: 54432023 30206174 20307834 31323030    TC #0 at 0x41200
0020f4b4: 30303020 6d617070 65642074 6f203078    000 mapped to 0x
0020f4c4: 46444646 46303030 0a3c343e 5b202020    FDFFF000.<4>[   
0020f4d4: 20302e30 30303030 305d2050 49442068     0.000000] PID h
0020f4e4: 61736820 7461626c 6520656e 74726965    ash table entrie
0020f4f4: 733a2031 32382028 6f726465 723a2037    s: 128 (order: 7
0020f504: 2c203531 32206279 74657329 0a3c343e    , 512 bytes).<4>
0020f514: 5b202020 20302e30 30303237 385d2043    [    0.000278] C
0020f524: 6f6e736f 6c653a20 636f6c6f 75722064    onsole: colour d
0020f534: 756d6d79 20646576 69636520 38307832    ummy device 80x2
0020f544: 350a3c34 3e5b2020 2020302e 30303036    5.<4>[    0.0006
0020f554: 30335d20 44656e74 72792063 61636865    03] Dentry cache
0020f564: 20686173 68207461 626c6520 656e7472     hash table entr
0020f574: 6965733a 20343039 3620286f 72646572    ies: 4096 (order
0020f584: 3a20322c 20313633 38342062 79746573    : 2, 16384 bytes
0020f594: 290a3c34 3e5b2020 2020302e 30303131    ).<4>[    0.0011
0020f5a4: 37315d20 496e6f64 652d6361 63686520    71] Inode-cache 
0020f5b4: 68617368 20746162 6c652065 6e747269    hash table entri
0020f5c4: 65733a20 32303438 20286f72 6465723a    es: 2048 (order:
0020f5d4: 20312c20 38313932 20627974 6573290a     1, 8192 bytes).
0020f5e4: 3c343e5b 20202020 302e3031 30393034    <4>[    0.010904
0020f5f4: 5d204d65 6d6f7279 3a203330 3238386b    ] Memory: 30288k
0020f604: 20617661 696c6162 6c652028 31353638     available (1568
0020f614: 6b206b65 726e656c 20636f64 652c2035    k kernel code, 5
0020f624: 31326b20 64617461 2c203936 6b20696e    12k data, 96k in
0020f634: 69742c20 306b2068 6967686d 656d290a    it, 0k highmem).
0020f644: 3c373e5b 20202020 302e3031 32363435    <7>[    0.012645
0020f654: 5d204361 6c696272 6174696e 67206465    ] Calibrating de
0020f664: 6c617920 6c6f6f70 2e2e2e20 39392e35    lay loop... 99.5
0020f674: 3820426f 676f4d49 50532028 6c706a3d    8 BogoMIPS (lpj=
0020f684: 31393931 3638290a 3c343e5b 20202020    199168).<4>[    
0020f694: 302e3039 37303031 5d204d6f 756e742d    0.097001] Mount-
0020f6a4: 63616368 65206861 73682074 61626c65    cache hash table
0020f6b4: 20656e74 72696573 3a203531 320a3c36     entries: 512.<6
0020f6c4: 3e5b2020 2020302e 31303230 32365d20    >[    0.102026] 
0020f6d4: 4e45543a 20526567 69737465 72656420    NET: Registered 
0020f6e4: 70726f74 6f636f6c 2066616d 696c7920    protocol family 
0020f6f4: 31360a3c 363e5b20 20202030 2e313233    16.<6>[    0.123
0020f704: 3532335d 204e4554 3a205265 67697374    523] NET: Regist
0020f714: 65726564 2070726f 746f636f 6c206661    ered protocol fa
0020f724: 6d696c79 20320a3c 343e5b20 20202030    mily 2.<4>[    0
0020f734: 2e313630 3438315d 20495020 726f7574    .160481] IP rout
0020f744: 65206361 63686520 68617368 20746162    e cache hash tab
0020f754: 6c652065 6e747269 65733a20 31303234    le entries: 1024
0020f764: 20286f72 6465723a 20302c20 34303936     (order: 0, 4096
0020f774: 20627974 6573290a 3c343e5b 20202020     bytes).<4>[    
0020f784: 302e3136 31323734 5d205443 50206573    0.161274] TCP es
0020f794: 7461626c 69736865 64206861 73682074    tablished hash t
0020f7a4: 61626c65 20656e74 72696573 3a203130    able entries: 10
0020f7b4: 32342028 6f726465 723a2031 2c203831    24 (order: 1, 81
0020f7c4: 39322062 79746573 290a3c34 3e5b2020    92 bytes).<4>[  
0020f7d4: 2020302e 31363135 39355d20 54435020      0.161595] TCP 
0020f7e4: 62696e64 20686173 68207461 626c6520    bind hash table 
0020f7f4: 656e7472 6965733a 20313032 3420286f    entries: 1024 (o
0020f804: 72646572 3a20302c 20343039 36206279    rder: 0, 4096 by
0020f814: 74657329 0a3c363e 5b202020 20302e31    tes).<6>[    0.1
0020f824: 36313831 385d2054 43503a20 48617368    61818] TCP: Hash
0020f834: 20746162 6c657320 636f6e66 69677572     tables configur
0020f844: 65642028 65737461 626c6973 68656420    ed (established 
0020f854: 31303234 2062696e 64203130 3234290a    1024 bind 1024).
0020f864: 3c363e5b 20202020 302e3136 31383938    <6>[    0.161898
0020f874: 5d205443 50207265 6e6f2072 65676973    ] TCP reno regis
0020f884: 74657265 640a3c36 3e5b2020 2020302e    tered.<6>[    0.
0020f894: 31373934 37385d20 696f2073 63686564    179478] io sched
0020f8a4: 756c6572 206e6f6f 70207265 67697374    uler noop regist
0020f8b4: 65726564 0a3c363e 5b202020 20302e31    ered.<6>[    0.1
=> 
0020f8c4: 37393536 315d2069 6f207363 68656475    79561] io schedu
0020f8d4: 6c657220 616e7469 63697061 746f7279    ler anticipatory
0020f8e4: 20726567 69737465 72656420 28646566     registered (def
0020f8f4: 61756c74 290a3c36 3e5b2020 2020302e    ault).<6>[    0.
0020f904: 31373936 33375d20 696f2073 63686564    179637] io sched
0020f914: 756c6572 20646561 646c696e 65207265    uler deadline re
0020f924: 67697374 65726564 0a3c363e 5b202020    gistered.<6>[   
0020f934: 20302e31 37393932 305d2069 6f207363     0.179920] io sc
0020f944: 68656475 6c657220 63667120 72656769    heduler cfq regi
0020f954: 73746572 65640a3c 363e5b20 20202031    stered.<6>[    1
0020f964: 2e303034 3633395d 20756172 746c6974    .004639] uartlit
0020f974: 652e303a 20747479 554c3020 6174204d    e.0: ttyUL0 at M
0020f984: 4d494f20 30783430 36303030 30332028    MIO 0x40600003 (
0020f994: 69727120 3d203229 20697320 61207561    irq = 2) is a ua
0020f9a4: 72746c69 74650a3c 343e5b20 20202032    rtlite.<4>[    2
0020f9b4: 2e393031 3633335d 2052414d 4449534b    .901633] RAMDISK
0020f9c4: 20647269 76657220 696e6974 69616c69     driver initiali
0020f9d4: 7a65643a 20312052 414d2064 69736b73    zed: 1 RAM disks
0020f9e4: 206f6620 38313932 4b207369 7a652031     of 8192K size 1
0020f9f4: 30323420 626c6f63 6b73697a 650a3c36    024 blocksize.<6
0020fa04: 3e5b2020 2020322e 39393232 37395d20    >[    2.992279] 
0020fa14: 74756e3a 20556e69 76657273 616c2054    tun: Universal T
0020fa24: 554e2f54 41502064 65766963 65206472    UN/TAP device dr
0020fa34: 69766572 2c20312e 360a3c36 3e5b2020    iver, 1.6.<6>[  
0020fa44: 2020332e 30353239 36315d20 74756e3a      3.052961] tun:
0020fa54: 20284329 20313939 392d3230 3034204d     (C) 1999-2004 M
0020fa64: 6178204b 7261736e 79616e73 6b79203c    ax Krasnyansky <
0020fa74: 6d61786b 40717561 6c636f6d 6d2e636f    maxk@qualcomm.co
0020fa84: 6d3e0a3c 363e5b20 20202033 2e313238    m>.<6>[    3.128
0020fa94: 3733335d 20585465 6d61633a 20757369    733] XTemac: usi
0020faa4: 6e672046 49464f20 64697265 63742069    ng FIFO direct i
0020fab4: 6e746572 72757074 20647269 76656e20    nterrupt driven 
0020fac4: 6d6f6465 2e0a3c36 3e5b2020 2020332e    mode..<6>[    3.
0020fad4: 31393639 33355d20 65746825 643a2058    196935] eth%d: X
0020fae4: 54656d61 633a2050 48592064 65746563    Temac: PHY detec
0020faf4: 74656420 61742061 64647265 73732033    ted at address 3
0020fb04: 2e0a3c36 3e5b2020 2020332e 32353931    ..<6>[    3.2591
0020fb14: 35385d20 65746830 3a205869 6c696e78    58] eth0: Xilinx
0020fb24: 2054454d 41432023 30206174 20307838     TEMAC #0 at 0x8
0020fb34: 31323030 30303020 6d617070 65642074    1200000 mapped t
0020fb44: 6f203078 43323032 30303030 2c206972    o 0xC2020000, ir
0020fb54: 713d300a 3c363e5b 20202020 332e3334    q=0.<6>[    3.34
0020fb64: 32383037 5d206574 68303a20 5854656d    2807] eth0: XTem
0020fb74: 61632069 6420312e 30662c20 626c6f63    ac id 1.0f, bloc
0020fb84: 6b206964 20352c20 74797065 20380a3c    k id 5, type 8.<
0020fb94: 363e5b20 20202033 2e343033 3233385d    6>[    3.403238]
0020fba4: 206d6963 653a2050 532f3220 6d6f7573     mice: PS/2 mous
0020fbb4: 65206465 76696365 20636f6d 6d6f6e20    e device common 
0020fbc4: 666f7220 616c6c20 6d696365 0a3c363e    for all mice.<6>
0020fbd4: 5b202020 20332e34 36353937 385d2054    [    3.465978] T
0020fbe4: 43502063 75626963 20726567 69737465    CP cubic registe
0020fbf4: 7265640a 3c363e5b 20202020 332e3530    red.<6>[    3.50
0020fc04: 34383134 5d204e45 543a2052 65676973    4814] NET: Regis
0020fc14: 74657265 64207072 6f746f63 6f6c2066    tered protocol f
0020fc24: 616d696c 7920310a 3c363e5b 20202020    amily 1.<6>[    
0020fc34: 332e3535 37303939 5d204e45 543a2052    3.557099] NET: R
0020fc44: 65676973 74657265 64207072 6f746f63    egistered protoc
0020fc54: 6f6c2066 616d696c 79203137 0a3c363e    ol family 17.<6>
0020fc64: 5b202020 20342e31 31333537 345d2065    [    4.113574] e
0020fc74: 7468303a 20585465 6d61633a 204f7074    th0: XTemac: Opt
0020fc84: 696f6e73 3a203078 62386632 0a3c363e    ions: 0xb8f2.<6>
0020fc94: 5b202020 20382e31 34353433 305d2065    [    8.145430] e
0020fca4: 7468303a 20585465 6d61633a 20576520    th0: XTemac: We 
0020fcb4: 72656e65 676f7469 61746564 20746865    renegotiated the
0020fcc4: 20737065 65642074 6f3a2031 30300a3c     speed to: 100.<
0020fcd4: 363e5b20 20202038 2e323132 3134375d    6>[    8.212147]
0020fce4: 20657468 303a2058 54656d61 633a2073     eth0: XTemac: s
0020fcf4: 70656564 20736574 20746f20 3130304d    peed set to 100M
0020fd04: 622f730a 3c353e5b 20202020 392e3237    b/s.<5>[    9.27
0020fd14: 36303637 5d205365 6e64696e 67204448    6067] Sending DH
0020fd24: 43502072 65717565 73747320 2e2c204f    CP requests ., O
0020fd34: 4b0a3c34 3e5b2020 2020392e 38343830    K.<4>[    9.8480
0020fd44: 38355d20 49502d43 6f6e6669 673a2047    85] IP-Config: G
0020fd54: 6f742044 48435020 616e7377 65722066    ot DHCP answer f
0020fd64: 726f6d20 3235352e 3235352e 3235352e    rom 255.255.255.
0020fd74: 3235352c 206d7920 61646472 65737320    255, my address 
0020fd84: 69732031 32392e31 32392e31 34342e38    is 129.129.144.8
0020fd94: 320a3c34 3e5b2020 2020392e 39343831    2.<4>[    9.9481
0020fda4: 33385d20 49502d43 6f6e6669 673a2043    38] IP-Config: C
0020fdb4: 6f6d706c 6574653a 0a3c343e 5b202020    omplete:.<4>[   
0020fdc4: 20392e39 38343732 395d2020 20202020     9.984729]      
0020fdd4: 20646576 6963653d 65746830 2c206164     device=eth0, ad
0020fde4: 64723d31 32392e31 32392e31 34342e38    dr=129.129.144.8
0020fdf4: 322c206d 61736b3d 3235352e 3235352e    2, mask=255.255.
0020fe04: 3235352e 302c2067 773d3132 392e3132    255.0, gw=129.12
0020fe14: 392e3134 342e312c 0a3c343e 5b202020    9.144.1,.<4>[   
0020fe24: 31302e30 38313736 395d2020 20202020    10.081769]      
0020fe34: 686f7374 3d766972 74657834 2d6d6972    host=virtex4-mir
0020fe44: 656b2c20 646f6d61 696e3d70 73692e63    ek, domain=psi.c
0020fe54: 682c206e 69732d64 6f6d6169 6e3d286e    h, nis-domain=(n
0020fe64: 6f6e6529 2c0a3c34 3e5b2020 2031302e    one),.<4>[   10.
0020fe74: 31363031 32385d20 20202020 20626f6f    160128]      boo
0020fe84: 74736572 7665723d 3235352e 3235352e    tserver=255.255.
0020fe94: 3235352e 3235352c 20726f6f 74736572    255.255, rootser
0020fea4: 7665723d 3132392e 3132392e 3134342e    ver=129.129.144.
0020feb4: 3131332c 20726f6f 74706174 683d0a3c    113, rootpath=.<
0020fec4: 353e5b20 20203130 2e323535 3737355d    5>[   10.255775]
0020fed4: 204c6f6f 6b696e67 20757020 706f7274     Looking up port
0020fee4: 206f6620 52504320 31303030 30332f32     of RPC 100003/2
0020fef4: 206f6e20 3132392e 3132392e 3134342e     on 129.129.144.
0020ff04: 3131330a 3c353e5b 20202031 302e3332    113.<5>[   10.32
0020ff14: 39383830 5d204c6f 6f6b696e 67207570    9880] Looking up
0020ff24: 20706f72 74206f66 20525043 20313030     port of RPC 100
0020ff34: 3030352f 31206f6e 20313239 2e313239    005/1 on 129.129
0020ff44: 2e313434 2e313133 0a3c343e 5b202020    .144.113.<4>[   
0020ff54: 31302e34 31323935 325d2056 46533a20    10.412952] VFS: 
0020ff64: 4d6f756e 74656420 726f6f74 20286e66    Mounted root (nf
0020ff74: 73206669 6c657379 7374656d 292e0a3c    s filesystem)..<
0020ff84: 343e5b20 20203130 2e343638 3134395d    4>[   10.468149]
0020ff94: 20467265 65696e67 20756e75 73656420     Freeing unused 
0020ffa4: 6b65726e 656c206d 656d6f72 793a2039    kernel memory: 9
0020ffb4: 366b2069 6e69740a 00000000 00000000    6k init.........
0020ffc4: 00000000 00000000 00000000 00000000    ................
0020ffd4: 00000000 00000000 00000000 00000000    ................
0020ffe4: 00000000 00000000 00000000 00000000    ................


That is a whole buffer

Mirek

On Tue, 28 Aug 2007, Grant Likely wrote:

On 8/28/07, Miroslaw Dach [off-list ref] wrote:

quoted

8. I have typed: md 0x20f0c4 100 and it showed me the buffer:

0020f0c4: 3c353e5b 20202020 302e3030 30303030    <5>[    0.000000
0020f0d4: 5d204c69 6e757820 76657273 696f6e20    ] Linux version
0020f0e4: 322e362e 32312d72 63362028 726f6f74    2.6.21-rc6 (root
0020f0f4: 40706335 32313529 20286763 63207665    @pc5215) (gcc ve
0020f104: 7273696f 6e20342e 302e3229 20233136    rsion 4.0.2) #16
0020f114: 204d6f6e 20417567 20323720 31323a33     Mon Aug 27 12:3
0020f124: 373a3038 20434553 54203230 30370a3c    7:08 CEST 2007.<
0020f134: 363e5b20 20202030 2e303030 3030305d    6>[    0.000000]
0020f144: 2058696c 696e7820 4d4c3430 33205265     Xilinx ML403 Re
0020f154: 66657265 6e636520 53797374 656d2028    ference System (
0020f164: 56697274 65782d34 20465829 0a3c373e    Virtex-4 FX).<7>
0020f174: 5b202020 20302e30 30303030 305d2045    [    0.000000] E
0020f184: 6e746572 696e6720 6164645f 61637469    ntering add_acti
0020f194: 76655f72 616e6765 28302c20 302c2038    ve_range(0, 0, 8
0020f1a4: 31393129 20302065 6e747269 6573206f    191) 0 entries o
0020f1b4: 66203235 36207573 65640a3c 343e5b20    f 256 used.<4>[
0020f1c4: 20202030 2e303030 3030305d 205a6f6e       0.000000] Zon
0020f1d4: 65205046 4e207261 6e676573 3a0a3c34    e PFN ranges:.<4

So it seams to be that the address points to the __log_buf (I hope).

Does it mean that when I try to start zImage kernel from u-boot
it hangs during uncompressing the image and it does even start booting?

Think about what you're looking at.  That buffer is ASCII text.  Does
it look like the entire buffer is displayed, or does it look like
there is more?

g.

-- 
=============================================================================
          Miroslaw Dach (Miroslaw.Dach@psi.ch) - SLS/Controls Group 
                PSI - Paul Scherrer Institut CH-5232 Villigen
=============================================================================