Leandro:
Es la primera vez que lo haces? o ya lo hiciste varias veces así?
    Si es la primera vez que lo haces, te recomiendo actualizar el kernel

Estabas haciendo otras cosas a la vez? algo de lectura del cd?
Fijate la llamada: Call Trace: [ide-cd:__insmod_ide-cd_O/lib

Como tenes instalado el tape? es scsi? con emulacion scsi?

Cual es la controladora y cual es la maquina de tape?

Es un RedHat?

El jue, 01-04-2004 a las 11:24, Leonardo Tourn escribió:
Al intentar hacer un backup en cinta del sistema de archivos casi
completo:

tar -czvf /dev/tape / --exclude=/proc,/mnt,/var/cache,/tmp >>
backlog.txt 2>> backlog.err

Después de una buena parte del proceso, se produjo un error de kernel:
------------- Transcripción de /var/log/messages (segmento referido al
error) Apr  1 09:36:15 lxgate kernel: Unable to handle kernel NULL
pointer dereference at virtual address 00000008 Apr  1 09:36:15 lxgate
kernel:  printing eip: Apr  1 09:36:15 lxgate kernel: c15d9416 Apr  1
09:36:15 lxgate kernel: *pde = 00000000 Apr  1 09:36:15 lxgate kernel:
Oops: 0000 2.4.21-198-default #1 Thu Mar 11 17:43 :56 UTC 2004
Apr  1 09:36:15 lxgate kernel: CPU:    0
Apr  1 09:36:15 lxgate kernel: EIP:
0010:[ide-cd:__insmod_ide-cd_O/lib/module
s/2.4.21-198-default/kernel/dri+-53406698/96]    Not tainted
Apr  1 09:36:15 lxgate kernel: EIP:    0010:[<c15d9416>]    Not tainted
Apr  1 09:36:15 lxgate kernel: EFLAGS: 00010246
Apr  1 09:36:15 lxgate kernel: eax: 00000000   ebx: 5f47534d   ecx:
00000001   e
dx: 5f47534d
Apr  1 09:36:15 lxgate kernel: esi: 5f47534d   edi: cf2241a0   ebp:
c8625c50   e
sp: c8625b10
Apr  1 09:36:15 lxgate kernel: ds: 0018   es: 0018   ss: 0018
Apr  1 09:36:15 lxgate kernel: Process tar (pid: 2183,
stackpage=c8625000) Apr  1 09:36:15 lxgate kernel: Stack: c8625c70
00000020 c16cc6c0 00000000 000000 00 0000002e 0000001f 0000003d
Apr  1 09:36:15 lxgate kernel:        c8625c98 00000018 cfaa3018
00000000 c16cc6
c0 00000000 00000000 cdae0c60
Apr  1 09:36:15 lxgate kernel:        00000001 c8625c94 00000000
00000001 5f4753
4d 5f47534d cf2241a0 c8625c50
Apr  1 09:36:16 lxgate kernel: Call Trace:
[ide-cd:__insmod_ide-cd_O/lib
/modules/2.4.21-198-default/kernel/dri+-53404687/96] (56)
[handle_mm_fault+121/3 20] (28)
[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-53
480192/96] (48)
Apr  1 09:36:16 lxgate kernel: Call Trace:         [<c15d9bf1>] (56)
[<c0131599>
] (28) [<c15c7500>] (48)
Apr  1 09:36:16 lxgate kernel:
[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-19
8-default/kernel/dri+-53479717/96] (116) [getblk+94/128] (88)
[ide-cd:__insmod_i
de-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-53472396/96] (28)
[ide-cd:__i
nsmod_ide-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-53341592/96]
(20)
Apr  1 09:36:16 lxgate kernel:   [<c15c76db>] (116) [<c014865e>] (88)
[<c15c9374
>] (28) [<c15e9268>] (20)
Apr  1 09:36:16 lxgate kernel:
[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-19
8-default/kernel/dri+-53407489/96] (16)
[ide-cd:__insmod_ide-cd_O/lib/modules/2.
4.21-198-default/kernel/dri+-53470102/96] (48) [getblk+47/128] (24)
[getblk+47/1 28] (12)
Apr  1 09:36:16 lxgate kernel:   [<c15d90ff>] (16) [<c15c9c6a>] (48)
[<c014862f>
] (24) [<c014862f>] (12)
Apr  1 09:36:16 lxgate kernel:   [getblk+94/128] (20) [bread+26/144]
(24) [ide-c
d:__insmod_ide-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-53406751/
96] (20)
[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-534
06123/9
6] (12)
Apr  1 09:36:16 lxgate kernel:   [<c014865e>] (20) [<c014892a>] (24)
[<c15d93e1>
] (20) [<c15d9655>] (12)
Apr  1 09:36:16 lxgate kernel:   [getblk+0/128] (40)
[ide-cd:__insmod_ide-cd_O/l
ib/modules/2.4.21-198-default/kernel/dri+-53341592/96] (08)
[ide-cd:__insmod_ide
-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-53480192/96] (12)
[ide-cd:__ins
mod_ide-cd_O/lib/modules/2.4.21-198-default/kernel/dri+-53407489/96]
(16)
Apr  1 09:36:16 lxgate kernel:   [<c0148600>] (40) [<c15e9268>] (08)
[<c15c7500>
] (12) [<c15d90ff>] (16)
Apr  1 09:36:16 lxgate kernel:
[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-19
8-default/kernel/dri+-53470102/96] (68)
[ide-cd:__insmod_ide-cd_O/lib/modules/2.
4.21-198-default/kernel/dri+-53365305/96] (12)
[ide-cd:__insmod_ide-cd_O/lib/mod
ules/2.4.21-198-default/kernel/dri+-53364614/96] (04)
[ide-cd:__insmod_ide-cd_O/
lib/modules/2.4.21-198-default/kernel/dri+-53314338/96] (100)
Apr  1 09:36:16 lxgate kernel:   [<c15c9c6a>] (68) [<c15e35c7>] (12)
[<c15e387a>
] (04) [<c15efcde>] (100)
Apr  1 09:36:16 lxgate kernel:   [block_read_full_page+664/752] (64)
[__alloc_pa
ges+118/688] (28) 
ges+[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-198-default/kerne
l/dri+-53462625/96] (08)
[ide-cd:__insmod_ide-cd_O/lib/modules/2.4.21-198-defaul
t/kernel/dri+-53477152/96] (04)
Apr  1 09:36:16 lxgate kernel:   [<c0149728>] (64) [<c013ece6>] (28)
[<c15cb99f>
] (08) [<c15c80e0>] (04)
Apr  1 09:36:16 lxgate kernel:   [__do_generic_file_read+484/1280] (36)
[file_re
ad_actor+0/240] (32) [generic_file_read+146/432] (16)
[file_read_actor+0/240] (6
0)
Apr  1 09:36:16 lxgate kernel:   [<c0135504>] (36) [<c0135a10>] (32)
[<c0135b92>
] (16) [<c0135a10>] (60)
Apr  1 09:36:16 lxgate kernel:   [sys_read+133/256] (36)
[system_call+51/64] (60
)
Apr  1 09:36:16 lxgate kernel:   [<c0146625>] (36) [<c0109073>] (60)
Apr  1 09:36:16 lxgate kernel: Modules:
[(reiserfs:<c15c0060>:<c15f1dd4>)]
Apr  1 09:36:16 lxgate kernel: Code: 8b 70 08 c7 44 24 4c ff ff ff ff 58
68 91 f b 5e c1 e8 b4 53
------------- Transcripción de /var/log/messages (segmento referido al
error) ---- FIN -----------

La pregunta es: puede ser que se solucione este problema si recompilo el
kernel incluyendo los módulos, de la tarjeta SCSI y de reiserfs que
estoy usando, en el kernel directamente? 


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