Messages in this thread | | | From | "Nicolas Ross" <> | Subject | Unable to handle kernel NULL pointer dereference | Date | Mon, 19 Jul 2004 15:23:25 -0400 |
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Hi all !
I have a firewall box, with a vanilla kernel from kernel.org. I've tried with 2.4.19 and 2.4.24. The system is RedHat 7.3 (it does the same thing with 8.0, and gcc 3)
The kernel is pretty straigh-up, not much options, some net modules, iptables etc.
The only thing out of the ordinary is a custom net/core/dev.c file to support a bandwith management module, wich isn't gpl and is pre-compiled.
When issuing commands to configure the bandwith manager, I get :
Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: 00000000 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<00000000>] Tainted: P EFLAGS: 00010086 eax: ddf5f948 ebx: ddf5e000 ecx: ddf5f980 edx: de9db400 esi: c0000000 edi: ddf5f986 ebp: ddf5f9b8 esp: ddf5f92c ds: 0018 es: 0018 ss: 0018 Process bwmgr (pid: 1120, stackpage=ddf5f000) Stack: e08c4431 de9db400 ddf5f980 00008946 fffffec4 11860f1f 00000000 0000000a 00000000 00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00bd0c00 00000000 00000000 90c8ebff 6e616c76 e08d0032 defec800 Call Trace: [<e08c4431>] [<e08d0032>] [<e08d58d7>] [<e08d68b5>] [<c012b346>] [<c0120ea3>] [<c012b346>] [<c012995a>] [<c0120ea3>] [<c0120f19>] [<c010f303>] [<c028407e>] [<e08d95f6>] [<c01216de>] [<c010f1b0>] [<c01071b4>] [<c0282bab>] [<c010f1b0>] [<c01071b4>] [<c0282bab>] [<e08af1f7>] [<e08c33ec>] [<c01a3a17>] [<c023af54>] [<c023b138>] [<c023315a>] [<c013e413>] [<c01070a3>]
Code: Bad EIP value.
After that the system still responds but isn't much usable, I have to reboot, not practicall...
All of this was working with the exact same setup, but on a different MB, and kernel 2.4.19.
Any hints on the source of this exception ?
Nicolas
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