kernel expection generated with 2.6.21-mm1 kernel boot up

[Kamalesh Babulal]

Hi,

I tried compiling and booting up with 2.6.21-mm1 kernel
on the following machine

Architecture      :    PPC64
CPU Type           :    POWER5 (gr)
Machine Type    :    CHRP IBM,9117-570
Base OS              :    Fedora Core 5

the kernel enters the xmon state after an exception as following
Red Hat nash version 5.0.32 starting

Mounting proc filesystem

Mounting sysfs filesystem

Creating /dev

Creating initial device nodes

Setting up hotplug.

Creating block device nodes.

Loading jbd.ko module

Unable to handle kernel paging request for data at address 0x0083a680

Faulting instruction address: 0xc0000000000cc5e4

cpu 0x1: Vector: 300 (Data Access) at [c000000005373320]

    pc: c0000000000cc5e4: .slab_free+0x6c/0x424

    lr: c00000000002fa70: .pgtable_free_tlb+0xd0/0x140

    sp: c0000000053735a0

   msr: 8000000000009032

   dar: 83a680

 dsisr: 40000000

  current = 0xc000000009408790

  paca    = 0xc0000000004b2700

    pid   = 295, comm = init

enter ? for help

[c000000005373650] c00000000002fa70 .pgtable_free_tlb+0xd0/0x140

[c0000000053736f0] c0000000000b0f40 .free_pgd_range+0x23c/0x3c4

[c0000000053737f0] c0000000000b13cc .free_pgtables+0x100/0x134

[c0000000053738a0] c0000000000b29f0 .exit_mmap+0xcc/0x15c

[c000000005373950] c000000000057808 .mmput+0x78/0x170

[c0000000053739f0] c0000000000d9c38 .flush_old_exec+0x750/0xa74

[c000000005373ad0] c000000000012ef0 .load_elf_binary+0x5f8/0x1a18

[c000000005373c30] c0000000000d8a2c .search_binary_handler+0x124/0x304

[c000000005373ce0] c00000000011728c .compat_do_execve+0x1d0/0x328

[c000000005373d90] c000000000016428 .compat_sys_execve+0x74/0xf8

[c000000005373e30] c00000000000872c syscall_exit+0x0/0x40

--- Exception: c01 (System Call) at 00000000100d9358

SP (ff8b79e0) is in userspace

1:mon>

Attached and console log and config file.

Thanks,
Kamalesh Babulal.
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