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Subject: Re: PROBLEM: system crashes with oops message
From: GrandMasterLee <masterlee@digitalroadkill.net>
To: Ken Schneider <kschneider@rtsx.com>
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <1038930763.1856.22.camel@kens>
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Date: 03 Dec 2002 14:57:15 -0600
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Can you try this with a newer kernel?

On Tue, 2002-12-03 at 09:52, Ken Schneider wrote:
> system info below:
> 
> oops message:
> 
> Unable to handle kernel NULL pointer dereference at virtual address
> 0000002d
>  printing eip:
> c0150dfc
> *pde = 00000000
> Oops: 0000
> CPU:    1
> EIP:    0010:[<c0150dfc>]    Not tainted
> EFLAGS: 00010246
> eax: dae03ae0   ebx: 00000000   ecx: 00000000   edx: c0720000
> esi: 00000000   edi: 00000000   ebp: 00008001   esp: c0721f34
> ds: 0018   es: 0018   ss: 0018
> Process smbd (pid: 6105, stackpage=c0721000)
> Stack: dae03ae0 ffffffff 0821c438 c0721f8c cf721cf8 c014a980 dae03ae0
> 00008001
>        00008000 c55cf000 0821c438 bfffed8c c160ddf8 00000000 00000004
> d3dad760
>        c013e4e3 c55cf000 00008001 00000000 c0721f8c 0000001d d3dad760
> c1c37ee0
> Call Trace: [<c014a980>] [<c013e4e3>] [<c013e87e>] [<c0108b73>]
> 
> Code: f6 43 2d 10 74 59 f7 c5 00 08 00 00 0f 85 d7 00 00 00 8b 82
> 
> 
> *********************************************************************
> 
> output of ksymoops:
> 
> ksymoops 2.4.3 on i686 2.4.18-4GB-SMP.  Options used
>      -V (default)
>      -k /proc/ksyms (default)
>      -l /proc/modules (default)
>      -o /lib/modules/2.4.18-4GB-SMP/ (default)
>      -m /boot/System.map-2.4.18-4GB-SMP (default)
> 
> Warning: You did not tell me where to find symbol information.  I will
> assume that the log matches the kernel and modules that are running
> right now and I'll use the default options above for symbol resolution.
> If the current kernel and/or modules do not match the log, you can get
> more accurate output by telling me the kernel version and where to find
> map, modules, ksyms etc.  ksymoops -h explains the options.
> 
> Unable to handle kernel NULL pointer dereference at virtual address
> 0000002d
> c0150dfc
> *pde = 00000000
> Oops: 0000
> CPU:    1
> EIP:    0010:[<c0150dfc>]    Not tainted
> Using defaults from ksymoops -t elf32-i386 -a i386
> EFLAGS: 00010246
> eax: dae03ae0   ebx: 00000000   ecx: 00000000   edx: c0720000
> esi: 00000000   edi: 00000000   ebp: 00008001   esp: c0721f34
> ds: 0018   es: 0018   ss: 0018
> Process smbd (pid: 6105, stackpage=c0721000)
> Stack: dae03ae0 ffffffff 0821c438 c0721f8c cf721cf8 c014a980 dae03ae0
> 00008001
>        00008000 c55cf000 0821c438 bfffed8c c160ddf8 00000000 00000004
> d3dad760
>        c013e4e3 c55cf000 00008001 00000000 c0721f8c 0000001d d3dad760
> c1c37ee0
> Call Trace: [<c014a980>] [<c013e4e3>] [<c013e87e>] [<c0108b73>]
> Code: f6 43 2d 10 74 59 f7 c5 00 08 00 00 0f 85 d7 00 00 00 8b 82
> 
> >>EIP; c0150dfc <__get_lease+4c/24c>   <=====
> Trace; c014a980 <open_namei+3e4/69c>
> Trace; c013e4e2 <filp_open+32/54>
> Trace; c013e87e <sys_open+36/9c>
> Trace; c0108b72 <system_call+32/40>
> Code;  c0150dfc <__get_lease+4c/24c>
> 00000000 <_EIP>:
> Code;  c0150dfc <__get_lease+4c/24c>   <=====
>    0:   f6 43 2d 10               testb  $0x10,0x2d(%ebx)   <=====
> Code;  c0150e00 <__get_lease+50/24c>
>    4:   74 59                     je     5f <_EIP+0x5f> c0150e5a
> <__get_lease+aa/24c>
> Code;  c0150e02 <__get_lease+52/24c>
>    6:   f7 c5 00 08 00 00         test   $0x800,%ebp
> Code;  c0150e08 <__get_lease+58/24c>
>    c:   0f 85 d7 00 00 00         jne    e9 <_EIP+0xe9> c0150ee4
> <__get_lease+134/24c>
> Code;  c0150e0e <__get_lease+5e/24c>
>   12:   8b 82 00 00 00 00         mov    0x0(%edx),%eax
> 
> 
> 1 warning issued.  Results may not be reliable.
> 
> -----------------------------------------------------------------------------
> 
> Running SuSE 8.0 system with only SuSE supplied RPMS
> Using system as a fileserver using samba w/winbind and XFS filesystem
> and extended ACL's. Authentication against an NT 4.0 server for share
> access.
> 
> Hardware:
> Compaq Proliant 6000
> 512m ram 
> 10k rpm disks in raid 5 array
> 4 Intel pentium pro 200mhz processors (zeon)
> 
> System crashes HARD intermittenly (1-20 days) and only way to recover is
> by system power cycle.
> 
> Any help or redirection would be appreciated. 
-- 
GrandMasterLee <masterlee@digitalroadkill.net>
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