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Re: 2.4.0-test11 and af_inet.c(164)

To: kuznet@xxxxxxxxxxxxx
Subject: Re: 2.4.0-test11 and af_inet.c(164)
From: "Petr Vandrovec" <VANDROVE@xxxxxxxxxx>
Date: Fri, 24 Nov 2000 22:49:49 MET-1
Cc: netdev@xxxxxxxxxxx
Organization: CC CTU Prague
Sender: owner-netdev@xxxxxxxxxxx
On 24 Nov 00 at 0:06, Petr Vandrovec wrote:
> > OK... Audit is started.
> 
> Just FYI, as I already stated, machine is SMP. When assertion happened,
> there was running tcpdump catching all frames to file, in addition to 
> usual stuff (arpwatch, bind, apache, ntpd and slapd (Service Location 
> Protocol daemon from Novell).

Hi,
  I got warning message about af_inet.c(164) again. After few seconds
it was followed by oops below. 

  Probably someone set sk->sleep == NULL during schedule_timeout().
But this should not happen, should it? Someone doing 
memset(random, 0, random) in kernel?
                                            Best regards,
                                                    Petr Vandrovec
                                                    vandrove@xxxxxxxxxx
                                                    
Nov 24 22:24:10 vana kernel: Unable to handle kernel NULL pointer dereference 
at virtual address 00000000
Nov 24 22:24:10 vana kernel: c0118ce6
Nov 24 22:24:10 vana kernel: *pde = 00000000
Nov 24 22:24:10 vana kernel: Oops: 0002
Nov 24 22:24:10 vana kernel: CPU:    1
Nov 24 22:24:10 vana kernel: EIP:    0010:[remove_wait_queue+6/36]
Nov 24 22:24:10 vana kernel: EFLAGS: 00010086
Nov 24 22:24:10 vana kernel: eax: 00000286   ebx: 00000000   ecx: 00000011   
edx: c712ddec
Nov 24 22:24:10 vana kernel: esi: c712ddec   edi: cae729a0   ebp: c712de20   
esp: c712ddc4
Nov 24 22:24:10 vana kernel: ds: 0018   es: 0018   ss: 0018
Nov 24 22:24:10 vana kernel: Process ping (pid: 3948, stackpage=c712d000)
Nov 24 22:24:10 vana kernel: Stack: ffffff95 c01a6ec6 00000246 cae729a0 
cae729f4 c712de4c 00000000 c712c000 
Nov 24 22:24:10 vana kernel:        00000000 00000000 00000001 c712c000 
cc868a6c cc868a6c c01a6fdc cae729a0 
Nov 24 22:24:10 vana kernel:        c712de4c c712de20 00000000 cae729a0 
000000c0 c712df6c 00000000 7fffffff 
Nov 24 22:24:10 vana kernel: Call Trace: [wait_for_packet+230/300] 
[skb_recv_datagram+208/240] [raw_recvmsg+104/308] [inet_recvmsg+88/112] 
[sock_recvmsg+61/172] [sys_recvfrom+173/264] [do_page_fault+323/1000] 
Nov 24 22:24:10 vana kernel:        [<dcf02093>] [do_page_fault+0/1000] 
[do_mmap_pgoff+895/1044] [do_getitimer+156/164] [sys_socketcall+383/508] 
[system_call+51/56] 
Nov 24 22:24:10 vana kernel: Code: f0 fe 0b 0f 88 25 29 0c 00 8b 4a 0c 8b 52 08 
89 4a 04 89 11 
Using defaults from ksymoops -t elf32-i386 -a i386

Trace; dcf02093 <END_OF_CODE+a600478/????>
Code;  00000000 Before first symbol
0000000000000000 <_EIP>:
Code;  00000000 Before first symbol
   0:   f0 fe 0b                  lock decb (%ebx)
Code;  00000003 Before first symbol
   3:   0f 88 25 29 0c 00         js     c292e <_EIP+0xc292e> 000c292e Before 
first symbol
Code;  00000009 Before first symbol
   9:   8b 4a 0c                  mov    0xc(%edx),%ecx
Code;  0000000c Before first symbol
   c:   8b 52 08                  mov    0x8(%edx),%edx
Code;  0000000f Before first symbol
   f:   89 4a 04                  mov    %ecx,0x4(%edx)
Code;  00000012 Before first symbol
  12:   89 11                     mov    %edx,(%ecx)


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