linux-kernel - Kernel BUG: NULL pointer dereference , reference to sys

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Message-ID: <547a31ab0705100712w740e8fbuece5013d05a449b9@mail.gmail.com>
Date:	Thu, 10 May 2007 16:12:32 +0200
From:	"Croulder Croulder" <croulder@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Kernel BUG: NULL pointer dereference , reference to sys_recvmsg

Greetings,

The next report is a Kernel NULL pointer dereference in tcp/ip (IPv4).

I see that message all time in syslog.conf and console.

Kernel compiled with gcc 4.1.1    ->   (Debian 4.1.1-21)
Kernel Version: 2.6.21.1 (official source code)
Processor: 2 x Xeon 2.8
Ram: 1G
Swap: 1G
Raid: Using raid software (Raid1 and Rai5)
Network report: 2Mb/sg output , 512Kb/sg input
Protocols: tcp, udp, icmp, arp


server kernel: EIP: [<c03bc7df>] sys_recvmsg+0x100/0x1cd SS:ESP 0068:ec9f1e7c
May 10 13:41:22 server kernel: BUG: unable to handle kernel NULL
pointer dereference at virtual address 0000000f
May 10 13:41:22 server kernel:  printing eip:
May 10 13:41:22 server kernel: c03bc7df
May 10 13:41:22 server kernel: *pde = 00000000
May 10 13:41:22 server kernel: Oops: 0000 [#64]
May 10 13:41:22 server kernel: SMP
May 10 13:41:22 server kernel: Modules linked in:
May 10 13:41:22 server kernel: CPU:    1
May 10 13:41:22 server kernel: EIP:    0060:[<c03bc7df>]    Not tainted VLI
May 10 13:41:22 server kernel: EFLAGS: 00010202   (2.6.21.1-dh1 #7)
May 10 13:41:22 server kernel: EIP is at sys_recvmsg+0x100/0x1cd
May 10 13:41:22 server kernel: eax: bf5f4148   ebx: 00000000   ecx:
00007d00   edx: 00000040
May 10 13:41:22 server kernel: esi: ffffffff   edi: 00000000   ebp:
ec9f1f08   esp: ec9f1e7c
May 10 13:41:22 server kernel: ds: 007b   es: 007b   fs: 00d8  gs:
0033  ss: 0068
May 10 13:41:22 server kernel: Process hlxserverplus (pid: 32149,
ti=ec9f0000 task=f4bc90b0 task.ti=ec9f0000)
May 10 13:41:22 server kernel: Stack: 00000001 bf5f4148 00000008
c0139979 00000002 00000044 00000002 00000000
May 10 13:41:22 server kernel:        000280d2 c0563630 00000000
00000001 3aa4bcb4 00000001 ff4be90f 5761ed52
May 10 13:41:22 server kernel:        c13edca0 0000096c 000280d2
c0563628 f4bc90b0 c0139a47 00000044 ec9f1efa
May 10 13:41:22 server kernel: Call Trace:
May 10 13:41:22 server kernel:  [<c0139979>] get_page_from_freelist+0x24d/0x2c9
May 10 13:41:22 server kernel:  [<c0139a47>] __alloc_pages+0x52/0x286
May 10 13:41:22 server kernel:  [<c03f3171>] tcp_v4_hash+0xfe/0x110
May 10 13:41:22 server kernel:  [<c03bd968>] release_sock+0x12/0x9c
May 10 13:41:22 server kernel:  [<c03bcf46>] sys_socketcall+0x239/0x242
May 10 13:41:22 server kernel:  [<c0110bde>] do_page_fault+0x0/0x512
May 10 13:41:22 server kernel:  [<c0102578>] syscall_call+0x7/0xb
May 10 13:41:22 server kernel:  =======================
May 10 13:41:22 server kernel: Code: c0 89 c1 89 84 24 ec 00 00 00 0f
88 a9 00 00 00 8b 84 24 dc 00 00 00 c7 84 24 e4 00 00 00 00 00 00 00
89 da 83 ca 40 89 44 24 04 <8b> 46 10 f6 40 19 08 89 f0 0f 45 da 8d 94
24 cc 00 00 00 89 1c
May 10 13:41:22 server kernel: EIP: [<c03bc7df>]
sys_recvmsg+0x100/0x1cd SS:ESP 0068:ec9f1e7c



any fix?
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