Kernel Oops!!!

[Pavlos Parissis]

On Thu, 12 Dec 2002 01:49:19 +0200 Άγγελος Οικονομόπουλος
<aoiko at cc.ece.ntua.gr> wrote:

>  
>  > Psaxnontas to logs eida afto:
>  >  Dec 10 20:19:25 mainserver kernel: Unable to handle
>  >  kernel NULL pointer dereference at virtual address 0000000c
>  >  Dec 10 20:19:25 mainserver kernel:  printing eip:
>  >  Dec 10 20:19:25 mainserver kernel: c01297d0
>  >  Dec 10 20:19:25 mainserver kernel: *pde = 00000000
>  >  Dec 10 20:19:25 mainserver kernel: Oops: 0000
>  >  Dec 10 20:19:25 mainserver kernel: CPU:    0
>  >  Dec 10 20:19:25 mainserver kernel: EIP:   0010:[<c01297d0>]    Not
>  > tainted Dec 10 20:19:25 mainserver kernel: EFLAGS: 00010046
>  >  Dec 10 20:19:25 mainserver kernel: eax: 01600000 ebx: 40000000   ecx:
>  > 00000000   edx: 00000000
>  >  Dec 10 20:19:25 mainserver kernel: esi: 00000000
>  >  edi: 00000206   ebp: d1a106c0   esp: df7f1e64
>  >  Dec 10 20:19:25 mainserver kernel: ds: 0018   es: 0018   ss: 0018
>  >  Dec 10 20:19:25 mainserver kernel: Process kjournald pid: 131,
>  [snip]
>  > !!!
>  > Thn wra 20:19 eixa kinisei data apo samba simfona me ta logs.
>  
>  dhladh to mhxanhma etrexe 2 meres me oopsed kernel (kala, ta logs den ta
>  
>  koitas pote? mono otan uparxoun problhmata?). kai liga problhmata eides
>  sto 
Oxi to mhxanhma etrexe 14 wres me oopsed ston kernel.
H kiria douleia mou sthn etaireia pou ergazomai,mallon ergazomoun, den
einai system administration,
alla xilia alla pragmata.AN exeis parathshsei ta mails pou stelnw to grafw
meta tis 5 dioti apla
den iparxei xronos gia tetoia.
Alla pes pws evlepa to log kai thn wra pou to perage to message ti nomizeis
oti tha mporousa
na ekana?
Einai h defterh fora pou pernw oops kai thn prvth to peira mprosta sta
matia mou alla
den mporousa oute sthn console na grapsw.

>  filesystem. mia kalh idea 8a htan na trabh3eis ena mkfs.

>  
>  > Lew hrthe h wra na valw ton 2.4.20 kai ksekinaw.
>  > Paw na kanw compile ton kernel 2.4.20,eixa 2.4.19 kai pernw
>  > segmentation fault
>  > otan ekana make dep!!!
>  > Ksana kanw make mrproper make xconfig kai pernw segmentation fault
>  > otan dinw save!!!!
>  > ksana pali kai to pc kane reset mono tou env ekana compile!!!!!!!!
>  > Etsi opws hmoun travaw mia sto grafeio kai me akouse olh h etairia kai
>  > eginA
>  > rezili se ksenouns anthropous:(
>  
>  kalutera na 3eroun me poion exoun na kanoun :-)
:)

>  > Kanei reset tp pc eftixos den xreiaztike na kanw fsck pali kai paw
>  
>  ti ennoeis? 9 grammes pio panw egrapses oti to mhxanhma ekane reset mono
>  
>  tou. tre3e fsck *etsi kai alliws*, to log replay tou ext3 den se 
>  diasfalizei apo phruna pou den leitourgouse swsta otan krasare.
enoousa oti den ekana fsck manual ekane fsck kata to boot xwris na mou
anaferei
oti xreiazete manual fsck.
  
>  > console kai kanw compile xwris kanena provlima!
>  > An mexri thn paraskevh den exei kolisei profanos kati tha eixe o
>  > 2.4.19, an kanei reset h exei kolisei omws tha parv to DDR chipaki kai
>  > tha to faw. H na parw kai thn mboard(asus a7v333)???
>  
>  kaneis den 3erei, giati den exeis *kan* apokwdikopoihsei to oops (man 
>  ksymoops). mporei na einai kapoios controller, na ta exei pai3ei to
>  chipset 
2>  h na ftaiei h mnhmh. 8a htan polu pio eukolo na brei kaneis ti ftaiei
an 
>  mporouses na dwseis to trace apokwdikopoiwntas to oops. etsi, an doume
>  oti o pointer pernaei null check epeidh einai 0xc, mporeis na eisai
>  sxedon bebaios oti h mnhmh(to bus? o controller?) biazetai na sunanthsei
>  th megalh management unit ston ourano.
>  
>  >
>  > Genikh erwthsh, otan pernoume tosa segmentation faults kai Kernel Oops
>  > poios 'h poioi mporei na ftaine?RAM 'h CPU 'h HDD ti apo olla?
>  
>  isws kapoio ap' ola, isws kanena. trexeis memtest86, ta diagnwstika tou 
>  kataskeuasth gia to disko sou, bgazeis ena-ena ta e3arthmata mexri na
>  breis ti ftaiei klp.
Afta den mporoun pleon ginoun gia praktikous xronous.

 
>  >
>  > Egw eimai sxedon sigouros oti kati den pai kala me to hardware.
>  
>  einai giati eisai polu aisiodo3os. egw eimai sxedon apoluta sigouros oti
>  
>  kati ftaiei me to hardware, alla den nomizw oti se mhxanhma pou exei 
>  hostname "mainserver" prepei na katseis na to psa3eis.

PAvlos


-- 
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I love having the feeling of being in control
while i have the sensation of speed

The surfer of life
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