kernel: Unable to handle kernel NULL pointer

From: Vicky Shrestha (mail@vickysh.wlink.com.np)
Date: Tue Oct 01 2002 - 04:44:38 EST

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Dear all,

I am having the a problem with my squid2.4STABLE7 Machine and squid crashed
once a day. I get the following error in /var/log/kern.log:

Sep 29 12:58:37 proxy3 kernel: sending pkt_too_big to self
Oct 1 12:58:02 proxy3 kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000008
Oct 1 12:58:02 proxy3 kernel: printing eip:
Oct 1 12:58:02 proxy3 kernel: c0139a3f
Oct 1 12:58:02 proxy3 kernel: *pde = 00000000
Oct 1 12:58:02 proxy3 kernel: Oops: 0000
Oct 1 12:58:02 proxy3 kernel: ipt_LOG ipt_REDIRECT iptable_nat ip_conntrack
iptable_filter ip_tables 3c59x u
Oct 1 12:58:02 proxy3 kernel: CPU: 0
Oct 1 12:58:02 proxy3 kernel: EIP: 0010:[<c0139a3f>] Not tainted
Oct 1 12:58:02 proxy3 kernel: EFLAGS: 00010286
Oct 1 12:58:02 proxy3 kernel:
Oct 1 12:58:02 proxy3 kernel: EIP is at fput [kernel] 0xf (2.4.18-3)
Oct 1 12:58:02 proxy3 kernel: eax: d6933240 ebx: d6933240 ecx: cb9547e4
edx: c2023bdc
Oct 1 12:58:02 proxy3 kernel: esi: 00000000 edi: c2023008 ebp: 00000000
esp: d65cbf50
Oct 1 12:58:02 proxy3 kernel: ds: 0018 es: 0018 ss: 0018
Oct 1 12:58:02 proxy3 kernel: Process squid (pid: 14192, stackpage=d65cb000)
Oct 1 12:58:02 proxy3 kernel: Stack: c02c477c 00000203 ffffffff 00000420
c2023bd8 c2023000 c2023008 00000518
Oct 1 12:58:02 proxy3 kernel: c0146bf5 d65cbfa8 c3ca1e00 c3ca1e00
c014795d d65cbfa8 d65cbfa8 d65ca000
Oct 1 12:58:02 proxy3 kernel: 00000118 00000002 d65cbfa8 c3ca1e00
00000002 00000002 00000000 ce5b7000
Oct 1 12:58:02 proxy3 kernel: Call Trace: [<c0146bf5>] poll_freewait [kernel]
0x35
Oct 1 12:58:02 proxy3 kernel: [<c014795d>] sys_poll [kernel] 0x36d
Oct 1 12:58:02 proxy3 kernel: [<c0108923>] system_call [kernel] 0x33
Oct 1 12:58:02 proxy3 kernel:
Oct 1 12:58:02 proxy3 kernel:
Oct 1 12:58:02 proxy3 kernel: Code: 8b 7d 08 ff 4b 14 0f 94 c0 84 c0 0f 84 a5
00 00 00 53 e8 7a
Oct 1 12:58:02 proxy3 kernel: <7>sending pkt_too_big to self

-- Best regards,

Vicky Shrestha System Administrator WorldLink Communications Pvt.Ltd Jawalakhel, Kathmandu, Nepal.

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