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crash del server + log



questa mattina un server sarge presentava questo errore nel log. questo
server fa da
dns e dhcp. i client non riuscivano ad ottenere l'indirizzo ip, ho fatto un
reboot ma
senza nessun risultato, ho dovuto spegnere e riaccendere la macchina.
l'errore nel log
è scomparso e i servizi di rete hanno ripreso a funzionare.

da dove inizio ad indagare ? qualche suggerimento ??
grazie
Alberto Spelta

Unable to handle kernel paging request at virtual address 8fb9ca04
 printing eip:
c01d9a2d
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: af_packet uhci_hcd usbcore esssolo1 soundcore gameport
8139too mii agpgart tsdev mousedev evdev capability commoncap psmouse ide_cd
cdrom genrtc ext3 jbd ide_generic piix ide_disk ide_core unix font vesafb
cfbcopyarea cfbimgblt cfbfillrect
CPU:    0
EIP:    0060:[<c01d9a2d>]    Not tainted
EFLAGS: 00010202   (2.6.8-3-386)
EIP is at generic_make_request+0x1c/0x184
eax: 8fb9ca00   ebx: c83f86c8   ecx: cffcd940   edx: ca1ef920
esi: ca1ef920   edi: cb0d8f5c   ebp: 00000001   esp: cfa77d70
ds: 007b   es: 007b   ss: 0068
Process kjournald (pid: 290, threadinfo=cfa76000 task=cfe06050)
Stack: cfa77d6c ccc366c8 00000008 c8147354 00000000 ca1ef920 00000000
00000010
       c0148dff cfb91780 00000010 c83f86c8 ca1ef920 cb0d8f5c 00000001
c01d9c3e
       ca1ef920 00000010 00000001 000055b8 00000000 ca1ef920 00000008
00000000
Call Trace:
 [<c0148dff>] bio_alloc+0x105/0x16e
 [<c01d9c3e>] submit_bio+0xa9/0xb1
 [<c0148986>] sync_dirty_buffer+0x5a/0x7d
 [<d0843ac2>] journal_commit_transaction+0x9fc/0xe72 [jbd]
 [<c0116fb4>] autoremove_wake_function+0x0/0x3a
 [<c0116fb4>] autoremove_wake_function+0x0/0x3a
 [<d0845a54>] kjournald+0xbe/0x21d [jbd]
 [<c0116fb4>] autoremove_wake_function+0x0/0x3a
 [<c0116fb4>] autoremove_wake_function+0x0/0x3a
 [<c0105e6e>] ret_from_fork+0x6/0x14
 [<d084598c>] commit_timeout+0x0/0x9 [jbd]
 [<d0845996>] kjournald+0x0/0x21d [jbd]
 [<c01041e1>] kernel_thread_helper+0x5/0xb
Code: 8b 40 04 8b 70 38 8b 58 34 0f ac f3 09 c1 fe 09 89 f7 09 df



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