Re: Ooops

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Of course you could try (at the console) restarting network or xinetd or for testing purposes observe the boot process to ensure that everything is loads correctly. This looks like a problem with the kernel, for example a bug or incompatibly related to a driver. Keeping in mind that packet filtering takes place in the kernel, the fact that some IP services appear to be operational while others are not could be consistent with this hypothesis. Thus if you were to back out the last kernel patch without making any other changes the problem will likely go away. As to the exact problem some real debugging will probably be required.

Ron



Jan Houtsma wrote:
> 
> Hello,
> 
> No idea what caused it. The actions i remember in the hours just before the
> crash:
> 
> 1) I installed the new kernel 2.4.22-1.2179.nptl.
> 2) I changed one reject_rbl_client entry in postfix and reloaded postfix.
> 3) I had disconnected the LAN cable for a few minutes.
> 4) I also one hour before that i stopped and started my iptables.
> 
> Somehow either of these actions initiated something unexpected in the kernel.
> 3 minutes after i closed my ssh session from the server and had gone to bed
> the following thing happened. The server didn't crash completely. I could do NAT
> to the internet but i could *not* do ssh, telnet, http, pop3 etc.. Like xinetd didn't
> respond anymore or something. Nothing else suspicious in te log files:
> 
> Apr 16 01:19:45 pegasus sshd(pam_unix)[3914]: session closed for user jan
> Apr 16 01:24:08 pegasus kernel: Invalid packet:IN=eth0 OUT= MAC=00:a0:c9:e5:13:53:00:30:94:9c:0e:13:08:00 SRC=62.216.31.2 DST=195.64
> .90.75 LEN=269 TOS=0x00 PREC=0xC0 TTL=62 ID=63863 PROTO=ICMP TYPE=3 CODE=3 [SRC=195.64.90.75 DST=62.216.31.2 LEN=241 TOS=0x00 PREC=0
> x00 TTL=62 ID=0 DF PROTO=UDP SPT=138 DPT=138 LEN=221 ]
> Apr 16 01:24:08 pegasus kernel: Invalid packet:IN=eth0 OUT= MAC=00:a0:c9:e5:13:53:00:30:94:9c:0e:13:08:00 SRC=62.216.31.2 DST=195.64
> .90.75 LEN=264 TOS=0x00 PREC=0xC0 TTL=62 ID=63864 PROTO=ICMP TYPE=3 CODE=3 [SRC=195.64.90.75 DST=62.216.31.2 LEN=236 TOS=0x00 PREC=0
> x00 TTL=62 ID=0 DF PROTO=UDP SPT=138 DPT=138 LEN=216 ]
> Apr 16 01:24:16 pegasus kernel: Unable to handle kernel paging request at virtual address 0f440008
> Apr 16 01:24:16 pegasus kernel:  printing eip:
> Apr 16 01:24:16 pegasus kernel: c0133794
> Apr 16 01:24:16 pegasus kernel: *pde = 00000000
> Apr 16 01:24:16 pegasus kernel: Oops: 0000
> Apr 16 01:24:16 pegasus kernel: ip_nat_ftp iptable_nat ipt_LOG ipt_limit ipt_state iptable_filter iptable_mangle ip_tables parport_p
> c lp parport autofs 3c59x e100 ip_conntrack_irc ip_conntra
> Apr 16 01:24:16 pegasus kernel: CPU:    0
> Apr 16 01:24:16 pegasus kernel: EIP:    0060:[<c0133794>]    Not tainted
> Apr 16 01:24:16 pegasus kernel: EFLAGS: 00010216
> Apr 16 01:24:16 pegasus kernel:
> Apr 16 01:24:16 pegasus kernel: EIP is at __find_lock_page_helper [kernel] 0x14 (2.4.22-1.2179.nptl)
> Apr 16 01:24:16 pegasus kernel: eax: cbad15b4   ebx: 0f440000   ecx: c10b7d40   edx: 000005a8
> Apr 16 01:24:16 pegasus kernel: esi: cbad15b4   edi: 000005a8   ebp: c10b7d40   esp: cbab5dc8
> Apr 16 01:24:16 pegasus kernel: ds: 0068   es: 0068   ss: 0068
> Apr 16 01:24:16 pegasus kernel: Process kjournald (pid: 174, stackpage=cbab5000)
> Apr 16 01:24:16 pegasus kernel: Stack: c12a4280 cbf5f800 cbad15b4 00000001 c0133852 00000001 c12a4280 00001000
> Apr 16 01:24:16 pegasus kernel:        00001000 00000302 c014810e cbad15b4 000005a8 000000f0 c12a4280 000005a8
> Apr 16 01:24:16 pegasus kernel:        c0148338 c12a4280 000005a8 00001000 00009b8f 00000000 00000302 00001000
> Apr 16 01:24:16 pegasus kernel: Call Trace:   [<c0133852>] find_or_create_page [kernel] 0x52 (0xcbab5dd8)
> Apr 16 01:24:16 pegasus kernel: [<c014810e>] grow_dev_page [kernel] 0x2e (0xcbab5df0)
> Apr 16 01:24:16 pegasus kernel: [<c0148338>] grow_buffers [kernel] 0x98 (0xcbab5e08)
> Apr 16 01:24:16 pegasus kernel: [<c0145c86>] getblk [kernel] 0x46 (0xcbab5e2c)
> Apr 16 01:24:16 pegasus kernel: [<cc813124>] journal_get_descriptor_buffer [jbd] 0x64 (0xcbab5e4c)
> Apr 16 01:24:16 pegasus kernel: [<cc810601>] journal_commit_transaction [jbd] 0xed1 (0xcbab5e70)
> Apr 16 01:24:16 pegasus kernel: [<c01188a0>] recalc_task_prio [kernel] 0x90 (0xcbab5f44)
> Apr 16 01:24:16 pegasus kernel: [<c011946b>] schedule [kernel] 0x2bb (0xcbab5f64)
> Apr 16 01:24:16 pegasus kernel: [<cc812a44>] kjournald [jbd] 0x144 (0xcbab5fbc)
> Apr 16 01:24:16 pegasus kernel: [<cc8128e0>] commit_timeout [jbd] 0x0 (0xcbab5fd8)
> Apr 16 01:24:16 pegasus kernel: [<cc812900>] kjournald [jbd] 0x0 (0xcbab5fe8)
> Apr 16 01:24:16 pegasus kernel: [<c010734d>] kernel_thread_helper [kernel] 0x5 (0xcbab5ff0)
> Apr 16 01:24:16 pegasus kernel:
> Apr 16 01:24:16 pegasus kernel:
> Apr 16 01:24:16 pegasus kernel: Code: 39 73 08 74 07 8b 5b 10 eb f2 89 f6 39 7b 0c 75 f4 85 db 74
> Apr 16 01:24:57 pegasus kernel:  <4>INPUT packet died: IN=eth0 OUT= MAC=00:a0:c9:e5:13:53:00:30:94:9c:0e:13:08:00 SRC=200.160.240.36
>  DST=195.64.90.75 LEN=40 TOS=0x00 PREC=0x00 TTL=109 ID=55157 PROTO=TCP SPT=22002 DPT=3127 WINDOW=8899 RES=0x00 SYN URGP=0
> Apr 16 01:24:57 pegasus kernel: INPUT packet died: IN=eth0 OUT= MAC=00:a0:c9:e5:13:53:00:30:94:9c:0e:13:08:00 SRC=200.160.240.36 DST
> =195.64.90.75 LEN=40 TOS=0x00 PREC=0x00 TTL=126 ID=7799 PROTO=TCP SPT=22002 DPT=1080 WINDOW=25844 RES=0x00 SYN URGP=0
> Apr 16 01:24:57 pegasus kernel: INPUT packet died: IN=eth0 OUT= MAC=00:a0:c9:e5:13:53:00:30:94:9c:0e:13:08:00 SRC=200.160.240.36 DST
> =195.64.90.75 LEN=40 TOS=0x00 PREC=0x00 TTL=123 ID=25976 PROTO=TCP SPT=22002 DPT=10080 WINDOW=10021 RES=0x00 SYN URGP=0
> Apr 16 01:36:08 pegasus kernel: Invalid packet:IN=eth0 OUT= MAC=00:a0:c9:e5:13:53:00:30:94:9c:0e:13:08:00 SRC=62.216.31.2 DST=195.64
> .90.75 LEN=269 TOS=0x00 PREC=0xC0 TTL=62 ID=63865 PROTO=ICMP TYPE=3 CODE=3 [SRC=195.64.90.75 DST=62.216.31.2 LEN=241 TOS=0x00 PREC=0
> x00 TTL=62 ID=0 DF PROTO=UDP SPT=138 DPT=138 LEN=221 ]
> 
> Thanks,
> Jan
> 
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