[BUG] 2.6.23-rc3-mm1 - kernel BUG at net/core/skbuff.c:95!

[Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>]

Hi Andrew,

Following Kernel Bug was raised when i tried compiling and booting ppc64 
machine
with 2.6.23-rc3-mm1 kernel.

=================================================================

Freeing initrd memory: 908k freed

sysctl table check failed: /kernel .1 Writable sysctl directory

skb_over_panic: text:c0000000002bf840 len:139 put:29 head:c00000000ffe7400 data:c00000000ffe7400 tail:0x8b end:0x80 dev:<NULL>

------------[ cut here ]------------

kernel BUG at net/core/skbuff.c:95!

Oops: Exception in kernel mode, sig: 5 [#1]

SMP NR_CPUS=128 NUMA pSeries

Modules linked in:

NIP: c0000000003fd7c4 LR: c0000000003fd7c0 CTR: 80000000000f97dc

REGS: c0000000027f3850 TRAP: 0700   Not tainted  (2.6.23-rc3-mm1-autokern1)

MSR: 8000000000029032 <EE,ME,IR,DR>  CR: 24288024  XER: 00000010

TASK = c000000009fc0000[1] 'swapper' THREAD: c0000000027f0000 CPU: 0

GPR00: c0000000003fd7c0 c0000000027f3ad0 c000000000737710 0000000000000082 

GPR04: 0000000000000001 0000000000000001 0000000000000000 c00000000062bb3c 

GPR08: 0000000000000000 c00000000067b2e0 0000000000002100 c00000000077b110 

GPR12: 0000000000004000 c000000000649f00 0000000000000000 0000000000000000 

GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 

GPR20: 0000000000000000 c00000000802a0c0 c00000000052ea30 c0000000005392a8 

GPR24: c000000009f6b908 c0000000006a4000 c0000000026e2000 0000000000000020 

GPR28: c00000000ffe746e 0000000000000004 c0000000006f5340 c000000009f6a900 

NIP [c0000000003fd7c4] .skb_over_panic+0x50/0x58

LR [c0000000003fd7c0] .skb_over_panic+0x4c/0x58

Call Trace:

[c0000000027f3ad0] [c0000000003fd7c0] .skb_over_panic+0x4c/0x58 (unreliable)

[c0000000027f3b60] [c0000000002bf848] .kobject_uevent_env+0x4f8/0x528

[c0000000027f3c80] [c00000000032512c] .device_add+0x2bc/0x730

[c0000000027f3d50] [c000000000022330] .vio_register_device_node+0x1a4/0x274

[c0000000027f3e00] [c0000000005d34a8] .vio_bus_init+0xa0/0xec

[c0000000027f3e80] [c0000000005c8c6c] .kernel_init+0x20c/0x4b8

[c0000000027f3f90] [c0000000000267b0] .kernel_thread+0x4c/0x68

Instruction dump:

80a30068 e8e300b8 e90300c0 812300b0 814300b4 2fa00000 409e0008 e81e8008 

e87e8010 f8010070 4bc59055 60000000 <0fe00000> 48000000 7c0802a6 fbc1fff0 

Kernel panic - not syncing: Attempted to kill init!



Thanks & Regards,
Kamalesh Babulal.
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